CN104446328B - A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete - Google Patents
A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete Download PDFInfo
- Publication number
- CN104446328B CN104446328B CN201410611946.1A CN201410611946A CN104446328B CN 104446328 B CN104446328 B CN 104446328B CN 201410611946 A CN201410611946 A CN 201410611946A CN 104446328 B CN104446328 B CN 104446328B
- Authority
- CN
- China
- Prior art keywords
- content
- slag
- powder
- high performance
- performance concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete, it is characterized in that the sand material surface scission of link that mine tailing and barren rock are made by the synergism utilizing multiple solid waste is bonded again, and do not mix clinker and prepare the 100% low-cost and high-performance concrete utilizing garbage. By blast furnace slag micropowder, slag micro powder, tailing micro-powder, the utilization collaborative with the sand material that mine tailing and barren rock are made of the micro-cream powder of desulfurization stone, then pass through sand material surface scission of link mine tailing and barren rock made again to be bonded, prepare and be available for the C35 of various construction project use, C40, C45, the premixed and pumped high performance concrete of C50, C55 and C60. The present invention can not only prepare and be available for the premixed and pumped high performance concrete that various construction project is conventional, PM2.5 can also be reduced discharging by the sand material made with mine tailing and the barren rock fried stone that replaces cutting into a mountain, and be reached the purpose of significantly reducing emission of carbon dioxide by the clinker in minimizing concrete.
Description
Technical field
The invention belongs to building material field, relate to a kind of many solid wastes and work in coordination with the method utilizing the premixed and pumped high performance concrete of production.
Technical background
The haze problem of Beijing-tianjin-hebei Region has become the great environmental problem attracted worldwide attention. And the particle diameter ultrafine particle thing less than 1 micron, nitrogen oxides and sulfide are to the discharge in air, it it is the main component constituting PM2.5. The total flow of the annual building sand building stones in Beijing-tianjin-hebei Region about 600,000,000 tons, major part is to be obtained by the fried stone that cuts into a mountain. The every cubic metre of sand material acquired by fried stone that cuts into a mountain about discharges the 54.2 gram particle footpaths dust less than 1 micron in air. Meanwhile, in explosive charge process, a large amount of nitros are transformed into nitrogen oxides, and form new nitrogen oxides owing to High Temperature High Pressure promotes that the nitrogen in air reacts with oxygen. In TNT explosive, the mass ratio shared by nitro is up to 60.76%. The current Beijing-tianjin-hebei Region fried stone that cuts into a mountain produces potential PM2.5 formation produced by building sand building stones, is approximately equivalent to the total release of 6,400,000 motor vehicles, accounts for the 30% of Beijing-tianjin-hebei Region vehicular emission total amount. At present in the Yanshan Mountain of Jing-jin-ji region and periphery and Wild jujube in Taihang Mountain Area, just heap has magnetite quartzite sections mine tailing and the barren rock of more than 20,000,000,000 tons, and has the feature of gamut dispersed and distributed. It is entirely possible to and progressively forbids the fried stone that cuts into a mountain, but 100% adopts magnetite quartzite sections mine tailing and barren rock to prepare building sand building stones, produces whole concrete in the district of Jing-jin-ji region. It has recently been demonstrated that the surface nature of magnetite quartzite sections mine tailing and barren rock has dramatically different character with traditional limestone stone and Machine-made Sand. Magnetite quartzite sections mine tailing and barren rock are mainly made up of silicate mineral, there are substantial amounts of silica and alumina scission of link in surface, is easier to the sial based cementitious material with metallurgical slag than the limestone stone being main mineral constituent based on calcite and Machine-made Sand and forms chemical bonds. But the comprehensive utilization to large Industrial Solid Waste in the past, the research concentrated on one thing only is more, the research that the full industrial chain of multiple solid waste works in coordination with utilization is less, adding the constraint of industry barrier and traditional thought, magnetite quartzite sections mine tailing and barren rock surface have substantial amounts of silica and this feature of alumina scission of link are not furtherd investigate and make full use of. On the other hand, the silicon-oxy tetrahedron in blast furnace slag with potential hydraulically active is 2-3 times of clinker, but no matter it is as cement mixture or as concrete admixture at present, or the main component as cemented filling mining cementing agent, only 15%-30% is playing a role.China produces nearly 300,000,000 tons of blast furnace slag per year, and current this rough Land use systems is a kind of potential waste. Slag is one of current iron and steel enterprise large solid waste of utilizing worst, and except extracting part metals ferrum therein, major part is not utilized effectively. Major part steel mill also has the residual metallic iron of about 3% in the steel tailings after fully selecting ferrum, and containing the calcium higher than clinker, magnesium, ferrum bivalent metal ion. China produces nearly 100,000,000 tons of slag per year, and accumulation stores up nearly 1,000,000,000 tons, is a huge Ca, Mg and Fe resources bank. If its grinding can be become micron order fine powder, and with blast furnace slag micropowder, tailing micro-powder and desulfurated plaster micropowder synergism, may be manufactured without the Binder Materials for high performance concrete of cement grog. If blast furnace slag micropowder, slag micro powder, tailing micro-powder, the utilization collaborative with the full industrial chain of sand material that mine tailing and barren rock are made of desulfurated plaster micropowder can be realized in the whole nation, substantial amounts of clinker can not only be saved, moreover it is possible to reduce by the fried stone that cuts into a mountain of billions of tons. Particularly in Beijing-tianjin-hebei Region, it is possible to all adopt the mine tailings of iron mines and barren rock to prepare concrete aggregate, 100% stops cutting into a mountain fried stone.
Patent of invention CN200910070563.7 " iron tailing concrete " provides a kind of iron tailing concrete, the composition of this iron tailing concrete has cement, processing barren rocks and chip, admixture, water and the pumping agent for concrete determined according to performance, it is cement 4-20%, processing barren rocks and chip 0-35%, admixture 1-8% respectively by the composition described in weight concrete %, pumping agent for concrete is the 1.5～2.5% of cement and admixture sum weight, and all the other are water. The effect of this invention is that this new concrete adopts mine tailing stone and chip, partly or entirely replaces natural aggregate and is applied to concrete production. But this patent is without reference to by blast furnace slag micropowder, slag micro powder, tailing micro-powder, the utilization collaborative with the sand material that mine tailing and barren rock are made of desulfurated plaster micropowder, make full use of the sand material surface scission of link that mine tailing and barren rock made by the synergism of above-mentioned multiple solid waste to be again bonded, and do not mix the technology of clinker. Patent of invention CN200710177294.5 " a kind of method utilizing iron tailings to prepare high strength structure material " discloses and a kind of prepares Binder Materials and the high strength structure MATERIALS METHODS being fine aggregate preparation fine concrete with iron tailings with iron tailings for primary raw material. It is characterized in that: iron tailings is carried out superfine grinding and makes its specific surface area reach 700m2/ more than kg, add a certain amount of common replacing partial cement of blast furnace slag powder as Binder Materials, again the Binder Materials that this kind contains ultra-fine iron tailings powder is configured to fine concrete by a certain percentage with coarse grain iron tailings, obtains comprcssive strength by high-temperature steam curing or steam press maintenance and reach the high strength structure material of more than 100MPa. Iron tailings and the natural sand and stone resources of saving although this technology can be dissolved, but this patent is also without relating to blast furnace slag micropowder, slag micro powder, tailing micro-powder, the utilization collaborative with the sand material that mine tailing and barren rock are made of desulfurated plaster micropowder, make full use of the sand material surface scission of link that mine tailing and barren rock made by the synergism of above-mentioned multiple solid waste to be again bonded, and do not mix the technology of clinker.
Summary of the invention
A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete, it is characterized in that the sand material surface scission of link that mine tailing and barren rock are made by the synergism utilizing multiple solid waste is bonded again, and do not mix clinker and prepare the 100% low-cost and high-performance concrete utilizing garbage.By blast furnace slag micropowder, slag micro powder, tailing micro-powder, the utilization collaborative with the sand material that mine tailing and barren rock are made of desulfurated plaster micropowder, then pass through sand material surface scission of link mine tailing and barren rock made again to be bonded, prepare and be available for the C35 of various construction project use, C40, C45, the premixed and pumped high performance concrete of C50, C55 and C60.
The present invention utilizes the sand material synergism that blast furnace slag micropowder, slag micro powder, tailing micro-powder, desulfurated plaster micropowder are made with mine tailing and barren rock, prepare and be available for the C35 of various construction project use, C40, C45, the premixed and pumped high performance concrete of C50, C55 and C60, can not only promote that Beijing-tianjin-hebei Region stops the fried stone reduction of discharging PM2.5 that cuts into a mountain comprehensively, and can also reach to subtract the purpose of carbon dioxide by the clinker in minimizing concrete.
A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete, specifically comprise the following steps that
(1) ready various micropowders being pressed slag micro powder 10%-50%, slag micropowder 20%-65%, tailing micro-powder 1%-30%, the ratio of desulfurated plaster micropowder 5%-15% is made into Binder Materials.
(2) iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
(3) sand material that Binder Materials step (1) prepared and step (2) process is by Binder Materials 17%-25%, sand 20%-30%, stone 45%-55%, and account for the polycarboxylate water-reducer of Binder Materials 0.2%-1.5% and account for the water of Binder Materials 20%-38%, namely obtaining C35, C40, C45, C50, C55 and C60 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process need to meet the regulation of CECS207:2006 " high performance concrete application technology code ".
The processing method of slag micro powder described above is slag crushing levigate to specific surface area 500-850m2/ kg; Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media; In the slag micro powder finally given, metal Ferrum content is reduced to 0.01%-0.5%, and free calcium oxide content is reduced to 0.01%-3%.
Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of hot application method or hot vexed method or the vexed method of heat with pressure or drum process or autoclave method or air cooling method or water quenching; Tricalcium silicate content 5%-30% in described steel-making slag powder, dicalcium silicate content 5%-30%, RO phase content 10%-38%, ferric oxide content 2%-8%, calcium hydroxide content 0.5%-5%, hydrated ferric oxide. content 0.5%-5%, free calcium oxide content 0.01%-3%, calcium carbonate content 0.01%-10%, magnesium carbonate content is 0.01%-8%, ferric carbonate content is 0.01%-3%, other 0.01%-3%; For original free calcium oxide in steel slag higher than 3% in the case of, grinding process to add the water of 1%-3%, with ensure levigate after the content of steel-making slag powder Free CaO lower than 3%; Other indexs meet the requirement of GB/T20491-2006.
Described slag micropowder is to specific surface area 500-800m by levigate for blast furnace slag2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and removes the iron particle based on metallic iron in grinding process in real time, to avoid damage equipment and increase grinding energy;The main chemical of described blast furnace slag pulverized powder ranges for: CaO38%-49%, SiO226%-42%, Al2O36%-17%, MgO1%-13%, MnO0.1%-2%, FeO0.07%-2.5%, S0.2%-1.5%. Other indexs meet the requirement of GB/T18046-2008.
Described tailing micro-powder is by iron tailings grinding to specific surface area 400-800m2/ kg; For the iron tailings of rich sulfide, total sulfur content is controlled below 1%; For the mine tailing more than 1% of the sulfur content in iron tailings, the desulfurization of mine tailing adopts and arranges wet-gravity concentration machine in Tailings Slurry transfer pipeline or intensity magnetic separator carries out desulfurization, or arranges dry method intensity magnetic separator in grinding machine and on powder conveying pipeline in dry method grinding process and carry out desulfurization; Total sulfur content iron tailings below 1% is then directly used in and wears into iron tailings micropowder; The radioactive element content of mine tailing must also meet the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001; Mine tailing beyond standard limitation can not use; The main chemical compositions of described iron tailings powder ranges for SiO240%-95%, Al2O31%-40%Fe2O30.1%-20%, FeO0.1%-20%, CaO0.1%-30%, MgO0.1%-15%, K2O0.01%-8%, Na2O0.01%-10%MnO0.01-5%MnO20.01-5%, burns and loses 0.5%-9%, other 0.01%-1%; The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
The processing method of described desulfurated plaster micropowder is: adopt the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is at 99.8%-85%, and ovendry power is milled to specific surface area 400m2/kg-500m2/kg。
Usefulness of the present invention
The present invention utilizes the sand material synergism that blast furnace slag micropowder, slag micro powder, tailing micro-powder, desulfurated plaster micropowder are made with mine tailing and barren rock, prepare and be available for the C35 of various construction project use, C40, C45, the premixed and pumped high performance concrete of C50, C55 and C60, can not only promote that Beijing-tianjin-hebei Region stops the fried stone reduction of discharging PM2.5 that cuts into a mountain comprehensively, and can also reach to subtract the purpose of carbon dioxide by the clinker in minimizing concrete. the present invention makes full use of the silicon-oxy tetrahedron in blast furnace slag with potential hydraulically active and is the feature of 2-3 times of clinker and slag contains the calcium higher than clinker, magnesium, the feature of ferrum bivalent metal ion, make itself and tailing micro-powder and desulfurated plaster micropowder synergism, make the Binder Materials for high performance concrete without clinker, and aggregate all adopts the mine tailing of iron mine and barren rock to prepare concrete aggregate, 100% utilizes garbage to prepare is available for the C35 that various construction project uses, C40, C45, C50, the premixed and pumped high performance concrete of C55 and C60.
Detailed description of the invention
Embodiment 1
1. slag crushing levigate to specific surface area 550m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.23%, and free calcium oxide content is 2.2%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of overheated vexed method.The original content of free calcium oxide in steel slag of the vexed mistake of heat is 2.9%. Due to natural hygroscopic effect in grinding process, the slag micro powder free calcium oxide content finally given is 2.2%. Tricalcium silicate content 27.6% in described steel-making slag powder, dicalcium silicate content 15.4%, RO phase content 35.8%, ferric oxide content 3.8%, calcium hydroxide content 4.9%, hydrated ferric oxide. content 1.5%, calcium carbonate content 4.1%, magnesium carbonate content is 1.8%, and ferric carbonate content is 0.3%, and other is 2.3% years old. Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 680m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and in grinding process, remove the iron particle based on metallic iron in real time, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO38.1%, SiO236.2%, Al2O313.9%, MgO9.2%, MnO0.8%, FeO0.9%, S0.5%. Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 510m2/ kg. Sulfur content 0.8% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001. The main chemical compositions of described iron tailings powder is SiO245.1%, Al2O38.2%Fe2O33.2%, FeO7.7%, CaO23.2%, MgO3.1%, K2O1.2,Na2O1.3%, MnO2.5%MnO20.2%, burn mistake 3.5%, other is 0.6% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 98.2%, and ovendry power is milled to specific surface area 430m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-20%, slag micropowder 55%, tailing micro-powder 15%, the ratio of desulfurated plaster micropowder 10% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 20%, sand 30%, stone 50%, and account for the polycarboxylate water-reducer of Binder Materials 0.35% and account for the water of Binder Materials 38%, namely obtaining C35 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 1.
The C35 no first-hand datum high performance concrete key property that table 1 embodiment 1 is prepared
Embodiment 2
1. slag crushing levigate to specific surface area 580m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.28%, and free calcium oxide content is 2.5%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of hot application method.The original content of free calcium oxide in steel slag that hot application is crossed is 3.9%. Adding the water of 1.6% in grinding process, the slag micro powder free calcium oxide content finally given is 2.5%. Tricalcium silicate content 29.6% in described steel-making slag powder, dicalcium silicate content 14.4%, RO phase content 34.8%, ferric oxide content 3.6%, calcium hydroxide content 4.8%, hydrated ferric oxide. content 1.5%, calcium carbonate content 4.4%, magnesium carbonate content is 1.7%, and ferric carbonate content is 0.2%, and other is 2.4% years old. Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 640m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and in grinding process, remove the iron particle based on metallic iron in real time, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO37.9%, SiO236.6%, Al2O314.1%, MgO8.9%, MnO0.9%, FeO0.9%, S0.7%. Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 530m2/ kg. Sulfur content 0.6% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001. The main chemical compositions of described iron tailings powder is SiO246.2%, Al2O37.1%Fe2O32.9%, FeO8.1%, CaO22.3%, MgO3.7%, K2O1.3,Na2O1.2%, MnO2.6%MnO20.3%, burn mistake 3.2%, other is 0.5% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 97.9%, and ovendry power is milled to specific surface area 450m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-23%, slag micropowder 52%, tailing micro-powder 14%, the ratio of desulfurated plaster micropowder 11% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 23%, sand 28%, stone 49%, and account for the polycarboxylate water-reducer of Binder Materials 0.45% and account for the water of Binder Materials 32%, namely obtaining C45 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 2.
The C45 no first-hand datum high performance concrete key property that table 2 embodiment 2 is prepared
Embodiment 3
1. slag crushing levigate to specific surface area 590m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.29%, and free calcium oxide content is 2.8%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of overheated vexed method. Tricalcium silicate content 27.1% in described slag, dicalcium silicate content 15.9%, RO phase content 35.1%, ferric oxide content 4.5%, calcium hydroxide content 4.8%, hydrated ferric oxide. content 1.6%, calcium carbonate content 4.2%, magnesium carbonate content is 1.9%, and ferric carbonate content is 0.2%, and other is 2.4% years old.Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 680m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and implement to remove the iron particle based on metallic iron in grinding process, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO38.8%, SiO236.4%, Al2O313.7%, MgO8.3%, MnO0.9%, FeO0.8%, S0.7%. Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 550m2/ kg. Sulfur content 0.9% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001. The main chemical compositions of described iron tailings powder is SiO245.2%, Al2O38.3%Fe2O33.1%, FeO7.2%, CaO23.7%, MgO3.2%, K2O1.1,Na2O1.1%, MnO2.5%MnO20.4%, burn mistake 3.2%, other is 0.7% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 97.9%, and ovendry power is milled to specific surface area 450m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-27%, slag micropowder 50%, tailing micro-powder 12%, the ratio of desulfurated plaster micropowder 11% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 22%, sand 29%, stone 49%, and account for the polycarboxylate water-reducer of Binder Materials 0.45% and account for the water of Binder Materials 34%, namely obtaining C35 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 3.
The C40 no first-hand datum high performance concrete key property that table 3 embodiment 3 is prepared
Embodiment 4
1. slag crushing levigate to specific surface area 590m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.29%, and free calcium oxide content is 2.3%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of overheated vexed method. Tricalcium silicate content 23.6% in described slag, dicalcium silicate content 18.4%, RO phase content 36.8%, ferric oxide content 2.8%, calcium hydroxide content 4.9%, hydrated ferric oxide. content 1.7%, calcium carbonate content 4.9%, magnesium carbonate content is 1.7%, and ferric carbonate content is 0.2%, and other is 2.4% years old. Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 630m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and implement to remove the iron particle based on metallic iron in grinding process, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO37.1%, SiO237.2%, Al2O312.9%, MgO8.1%, MnO0.7%, FeO0.8%, S0.6%.Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 580m2/ kg. Sulfur content 0.1% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001. The main chemical compositions of described iron tailings powder is SiO285.1%, Al2O34.2%Fe2O33.0%, FeO1.2%, CaO3.1%, MgO1.1%, K2O0.2,Na2O0.5%, MnO0.1%MnO20.2%, burn mistake 0.4%, other is 0.5% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 96.9%, and ovendry power is milled to specific surface area 480m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-21%, slag micropowder 57%, tailing micro-powder 11%, the ratio of desulfurated plaster micropowder 11% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 22%, sand 29%, stone 49%, and account for the polycarboxylate water-reducer of Binder Materials 0.55% and account for the water of Binder Materials 33%, namely obtaining C40 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 4.
The C40 no first-hand datum high performance concrete key property that table 4 embodiment 4 is prepared
Embodiment 5
1. slag crushing levigate to specific surface area 620m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.29%, and free calcium oxide content is 2.3%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of overheated vexed method. Tricalcium silicate content 23.6% in described slag, dicalcium silicate content 18.4%, RO phase content 36.8%, ferric oxide content 2.8%, calcium hydroxide content 4.9%, hydrated ferric oxide. content 1.7%, calcium carbonate content 4.9%, magnesium carbonate content is 1.7%, and ferric carbonate content is 0.2%, and other is 2.4% years old. Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 680m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and implement to remove the iron particle based on metallic iron in grinding process, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO37.1%, SiO237.2%, Al2O312.9%, MgO8.1%, MnO0.7%, FeO0.8%, S0.6%. Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 530m2/ kg. Sulfur content 0.1% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001.The main chemical compositions of described iron tailings powder is SiO285.1%, Al2O34.2%Fe2O33.0%, FeO1.2%, CaO3.1%, MgO1.1%, K2O0.2,Na2O0.5%, MnO0.1%MnO20.2%, burn mistake 0.4%, other is 0.5% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 97.2%, and ovendry power is milled to specific surface area 430m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-40%, slag micropowder 37%, tailing micro-powder 13%, the ratio of desulfurated plaster micropowder 10% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 22%, sand 29%, stone 49%, and account for the polycarboxylate water-reducer of Binder Materials 0.55% and account for the water of Binder Materials 33%, namely obtaining C40 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 5.
The C40 no first-hand datum high performance concrete key property that table 5 embodiment 5 is prepared
Embodiment 6
1. slag crushing levigate to specific surface area 620m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.28%, and free calcium oxide content is 2.5%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of hot application method. The original content of free calcium oxide in steel slag that hot application is crossed is 3.9%. Adding the water of 1.6% in grinding process, the slag micro powder free calcium oxide content finally given is 2.5%. Tricalcium silicate content 29.6% in described steel-making slag powder, dicalcium silicate content 14.4%, RO phase content 34.8%, ferric oxide content 3.6%, calcium hydroxide content 4.8%, hydrated ferric oxide. content 1.5%, calcium carbonate content 4.4%, magnesium carbonate content is 1.7%, and ferric carbonate content is 0.2%, and other is 2.4% years old. Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 680m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and in grinding process, remove the iron particle based on metallic iron in real time, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO37.9%, SiO236.6%, Al2O314.1%, MgO8.9%, MnO0.9%, FeO0.9%, S0.7%. Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 530m2/ kg. Sulfur content 0.6% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001.The main chemical compositions of described iron tailings powder is SiO246.2%, Al2O37.1%Fe2O32.9%, FeO8.1%, CaO22.3%, MgO3.7%, K2O1.3,Na2O1.2%, MnO2.6%MnO20.3%, burn mistake 3.2%, other is 0.5% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 97.9%, and ovendry power is milled to specific surface area 450m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-23%, slag micropowder 52%, tailing micro-powder 14%, the ratio of desulfurated plaster micropowder 11% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 23%, sand 28%, stone 49%, and account for the polycarboxylate water-reducer of Binder Materials 0.64% and account for the water of Binder Materials 30%, namely obtaining C50 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 6.
The C50 no first-hand datum high performance concrete key property that table 6 embodiment 6 is prepared
Embodiment 7
1. slag crushing levigate to specific surface area 610m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.28%, and free calcium oxide content is 1.5%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of hot application method. The original content of free calcium oxide in steel slag that hot application is crossed is 3.9%. Adding the water of 1.6% in grinding process, the slag micro powder free calcium oxide content finally given is 1.5%. Tricalcium silicate content 31.6% in described steel-making slag powder, dicalcium silicate content 17.4%, RO phase content 34.8%, ferric oxide content 1.6%, calcium hydroxide content 6.4%, hydrated ferric oxide. content 0.5%, calcium carbonate content 2.8%, magnesium carbonate content is 1.7%, and ferric carbonate content is 0.2%, and other is 1.5% years old. Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 680m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and in grinding process, remove the iron particle based on metallic iron in real time, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO37.9%, SiO236.6%, Al2O314.1%, MgO8.9%, MnO0.9%, FeO0.9%, S0.7%. Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 530m2/ kg. Sulfur content 0.6% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001.The main chemical compositions of described iron tailings powder is SiO246.2%, Al2O37.1%Fe2O32.9%, FeO8.1%, CaO22.3%, MgO3.7%, K2O1.3,Na2O1.2%, MnO2.6%MnO20.3%, burn mistake 3.2%, other is 0.5% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 98.9%, and ovendry power is milled to specific surface area 440m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-25%, slag micropowder 58%, tailing micro-powder 6%, the ratio of desulfurated plaster micropowder 11% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 24%, sand 28%, stone 49%, and account for the polycarboxylate water-reducer of Binder Materials 0.73% and account for the water of Binder Materials 29%, namely obtaining C55 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 7.
The C55 no first-hand datum high performance concrete key property that table 7 embodiment 7 is prepared
Embodiment 8
1. slag crushing levigate to specific surface area 690m2/ kg. Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media. The slag micro powder metal Ferrum content finally given is 0.28%, and free calcium oxide content is 1.5%. Described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of hot application method. The original content of free calcium oxide in steel slag that hot application is crossed is 3.9%. Adding the water of 1.6% in grinding process, the slag micro powder free calcium oxide content finally given is 1.5%. Tricalcium silicate content 31.6% in described steel-making slag powder, dicalcium silicate content 17.4%, RO phase content 34.8%, ferric oxide content 1.6%, calcium hydroxide content 6.4%, hydrated ferric oxide. content 0.5%, calcium carbonate content 2.8%, magnesium carbonate content is 1.7%, and ferric carbonate content is 0.2%, and other is 1.5% years old. Other indexs meet the requirement of GB/T20491-2006.
2. by levigate for blast furnace slag to specific surface area 790m2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and in grinding process, remove the iron particle based on metallic iron in real time, to avoid damage equipment and to increase grinding energy, the main chemical of described blast furnace slag powder is: CaO37.9%, SiO236.6%, Al2O314.1%, MgO8.9%, MnO0.9%, FeO0.9%, S0.7%. Other indexs meet the requirement of GB/T18046-2008.
3. by iron tailings grinding to specific surface area 530m2/ kg. Sulfur content 0.6% in iron tailings, the radioactive element content of mine tailing meets the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001.The main chemical compositions of described iron tailings powder is SiO246.2%, Al2O37.1%Fe2O32.9%, FeO8.1%, CaO22.3%, MgO3.7%, K2O1.3,Na2O1.2%, MnO2.6%MnO20.3%, burn mistake 3.2%, other is 0.5% years old. The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
4. desulfurated plaster adopts the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is 98.9%, and ovendry power is milled to specific surface area 440m2/kg。
5. above-mentioned ready various micropowders being pressed slag micro-27%, slag micropowder 56%, tailing micro-powder 6%, the ratio of desulfurated plaster micropowder 11% is made into Binder Materials.
6. iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard. The course of processing adopts Whote-wet method
Cleaning flow process.
7. the sand material that Binder Materials step 5 prepared and step 6 process is by Binder Materials 25%, sand 27%, stone 48%, and account for the polycarboxylate water-reducer of Binder Materials 0.88% and account for the water of Binder Materials 27%, namely obtaining C60 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process meet the regulation of CECS207:2006 " high performance concrete application technology code ". The various performance of concrete prepared is as shown in table 8.
The C60 no first-hand datum high performance concrete key property that table 8 embodiment 8 is prepared
Claims (6)
1. solid waste more than a kind is worked in coordination with and is utilized the method producing premixed and pumped high performance concrete, the sand material surface scission of link that mine tailing and barren rock are made by the synergism of multiple solid waste is utilized again to be bonded, and do not mix clinker and prepare the 100% low-cost and high-performance concrete utilizing garbage, it is characterised in that specifically comprise the following steps that
(1) ready various micropowders being pressed slag micro powder 10%-50%, slag micropowder 20%-65%, tailing micro-powder 1%-30%, the ratio of desulfurated plaster micropowder 5%-15% is made into Binder Materials;
(2) iron tailings and iron mine barren rock are processed into the sand material meeting GB/T14684-2011 " construction sand " and GB/T14685-2011 " construction cobble, rubble " national standard; The course of processing adopts Whote-wet method cleaning flow process;
(3) sand material that Binder Materials step (1) prepared and step (2) process is by Binder Materials 17%-25%, sand 20%-30%, stone 45%-55%, and account for the polycarboxylate water-reducer of Binder Materials 0.2%-1.5% and account for the water of Binder Materials 20%-38%, namely obtaining C35, C40, C45, C50, C55 or C60 high-performance premixed pumping concrete after mix is uniform, the quality of mixing water and water reducer and concrete mixing process need to meet the regulation of CECS207:2006 " high performance concrete application technology code ".
2. a kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete according to claim 1, it is characterised in that the processing method of described slag micro powder is slag crushing levigate to specific surface area 500-850m2/ kg; Slag crushing and grinding processes remove the size particles based on metallic iron in time in the mode of real-time circulation deironing, to avoid in grinding process, produces ferromagnetism and magnetic coagulation due to the phase mutual friction between intergranular friction and granule with abrasive media; In the slag micro powder finally given, metal Ferrum content is reduced to 0.01%-0.5%, and free calcium oxide content is reduced to 0.01%-3%.
3. a kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete according to claim 2, described slag is converter slag, broken ore dressing and levigate before through the preprocessing process of hot application method or hot vexed method or the vexed method of heat with pressure or drum process or autoclave method or air cooling method or water quenching; Tricalcium silicate content 5%-30% in described slag micro powder, dicalcium silicate content 5%-30%, RO phase content 10%-38%, ferric oxide content 2%-8%, calcium hydroxide content 0.5%-5%, hydrated ferric oxide. content 0.5%-5%, free calcium oxide content 0.01%-3%, calcium carbonate content 0.01%-10%, magnesium carbonate content is 0.01%-8%, ferric carbonate content is 0.01%-3%, other 0.01%-3%; For original free calcium oxide in steel slag higher than 3% in the case of, grinding process to add the water of 1%-3%, with ensure levigate after the content of slag micro powder Free CaO lower than 3%; Other indexs meet the requirement of GB/T20491-2006.
4. a kind of many solid wastes according to claim 1 or claim 2 are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete, it is characterised in that described slag micropowder is to specific surface area 500-800m by levigate for blast furnace slag2/ kg, it is front through deironing pretreatment that blast furnace slag enters mill, removes the bulk metal ferrum being mixed into, and removes the iron particle based on metallic iron in grinding process in real time, to avoid damage equipment and increase grinding energy; The main chemical of described slag micropowder ranges for: CaO38%-49%, SiO226%-42%, Al2O36%-17%, MgO1%-13%, MnO0.1%-2%, FeO0.07%-2.5%, S0.2%-1.5%; Other indexs meet the requirement of GB/T18046-2008.
5. a kind of many solid wastes according to claim 1 or claim 2 are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete, it is characterised in that described tailing micro-powder is by iron tailings grinding to specific surface area 400-800m2/ kg; For the iron tailings of rich sulfide, total sulfur content is controlled below 1%; For the mine tailing more than 1% of the sulfur content in iron tailings, the desulfurization of mine tailing adopts and arranges wet-gravity concentration machine in Tailings Slurry transfer pipeline or intensity magnetic separator carries out desulfurization, or arranges dry method intensity magnetic separator in grinding machine and on powder conveying pipeline in dry method grinding process and carry out desulfurization; Total sulfur content iron tailings below 1% is then directly used in and wears into iron tailings micropowder; The radioactive element content of mine tailing must also meet the regulation of radioactive material radionuclides limitation standard GB/T 6566-2001; Mine tailing beyond standard limitation can not use; The main chemical compositions of described iron tailings micropowder ranges for SiO240%-95%, Al2O31%-40%, Fe2O30.1%-20%, FeO0.1%-20%, CaO0.1%-30%, MgO0.1%-15%, K2O0.01%-8%, Na2O0.01%-10%, MnO0.01-5%, MnO20.01-5%, burns and loses 0.5%-9%, other 0.01%-1%; The content of selected iron tailings poisonous and harmful element is without departing from the limitation of CNS or provincial standard or industry standard defined.
6. a kind of many solid wastes according to claim 1 or claim 2 are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete, it is characterised in that the processing method of described desulfurated plaster micropowder is: adopt the desulfurated plaster of coal fired power plant flue gas desulfurization, its CaSO4·2H2O and CaSO4·1/2H2The content sum of O is at 99.8%-85%, and ovendry power is milled to specific surface area 400m2/kg-500m2/kg。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611946.1A CN104446328B (en) | 2014-11-04 | 2014-11-04 | A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611946.1A CN104446328B (en) | 2014-11-04 | 2014-11-04 | A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104446328A CN104446328A (en) | 2015-03-25 |
| CN104446328B true CN104446328B (en) | 2016-06-15 |
Family
ID=52893178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410611946.1A Active CN104446328B (en) | 2014-11-04 | 2014-11-04 | A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104446328B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002769A (en) * | 2016-10-27 | 2018-05-08 | 鞍钢股份有限公司 | Concrete prepared from desulfurization by-products |
| CN107298561B (en) * | 2017-07-28 | 2019-07-23 | 大连地拓环境科技有限公司 | A kind of iron tailings barren rock resource utilization method |
| CN113277766A (en) * | 2021-06-02 | 2021-08-20 | 天津市滨海金鹏建筑材料有限公司 | Concrete pumping agent and preparation process thereof |
| CN113562991A (en) * | 2021-07-21 | 2021-10-29 | 安徽省国矿环保科技有限责任公司 | Superfine iron-based carbon-free cementing material and preparation method and application thereof |
| CN113754374B (en) * | 2021-09-07 | 2022-10-11 | 中国恩菲工程技术有限公司 | Low-clinker ultra-high performance concrete and preparation method thereof |
| CN116217195A (en) * | 2022-12-22 | 2023-06-06 | 北京科技大学 | Solid waste-based wet spraying concrete and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456705A (en) * | 2008-12-17 | 2009-06-17 | 马鞍山市国林建材有限公司 | Hydraulic bag concrete using industrial solid wastes |
| CN101671146A (en) * | 2009-09-24 | 2010-03-17 | 天津港保税区航保商品砼供应有限公司 | Iron tailing concrete |
| CN101767972A (en) * | 2010-01-18 | 2010-07-07 | 武汉理工大学 | Mine tailing sand brick and preparation method thereof |
| CN103601462A (en) * | 2013-11-29 | 2014-02-26 | 国家电网公司 | Cement-free mine-tailing concrete grouting material used for power transmission tower base |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232465C (en) * | 2002-12-24 | 2005-12-21 | 清华大学 | binary mixed coagulated stones and wet cement and method for production, deposit, transportation use and application |
-
2014
- 2014-11-04 CN CN201410611946.1A patent/CN104446328B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456705A (en) * | 2008-12-17 | 2009-06-17 | 马鞍山市国林建材有限公司 | Hydraulic bag concrete using industrial solid wastes |
| CN101671146A (en) * | 2009-09-24 | 2010-03-17 | 天津港保税区航保商品砼供应有限公司 | Iron tailing concrete |
| CN101767972A (en) * | 2010-01-18 | 2010-07-07 | 武汉理工大学 | Mine tailing sand brick and preparation method thereof |
| CN103601462A (en) * | 2013-11-29 | 2014-02-26 | 国家电网公司 | Cement-free mine-tailing concrete grouting material used for power transmission tower base |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104446328A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104529213B (en) | A kind of preparation method of slag composite powder quality concrete admixture | |
| CN104446328B (en) | A kind of many solid wastes are worked in coordination with and are utilized the method producing premixed and pumped high performance concrete | |
| CA2352926C (en) | Binder for mine tailings | |
| CA2577564C (en) | Binder for mine tailings, alluvial sand and rock fill, or combinations thereof | |
| CN102765889B (en) | Preparation method for tailing barren rock-made high-strength concrete containing coal ash | |
| CN106348712A (en) | Cementing filling material for co-processing lead-containing dangerous wastes of mine and preparation method of cementing filling material | |
| CN106396592B (en) | A kind of preparation method of the mine cemented filling material of resource utilization hazardous waste containing cadmium | |
| CN106966678A (en) | It is a kind of to cooperate with cemented filling material of solidification arsenic and preparation method thereof | |
| CN112374843B (en) | Method for preparing mine filling concrete by utilizing wet-grinding steel slag ore pulp | |
| CN105502974B (en) | A kind of processing of nickel minerals metallurgical slag and Application way | |
| CN106348713A (en) | Cementing filling material for co-processing copper-containing dangerous waste of mine and preparation method of cementing filling material | |
| CN106348711A (en) | Cementing filling material for co-processing mercury-containing dangerous wastes of mine and preparation method of cementing filling material | |
| CN107010915A (en) | It is a kind of to cooperate with cemented filling material of solidification antimony and preparation method thereof | |
| CN110002829B (en) | Electrolytic manganese slag baking-free brick and preparation method thereof | |
| AU2020104368A4 (en) | Cement Filling Material for Co-solidifying Antimony and Preparation Method Thereof | |
| CN112707712A (en) | Paste filling material containing superfine tail mud and preparation method and application thereof | |
| CN105645794A (en) | Preparation method of Portland cement with high-content industrial waste residues | |
| CN108043578A (en) | A kind of processing barren rocks iron selection technique | |
| CN105481271A (en) | Low-alkali cement prepared from copper mine tailing and preparation method thereof | |
| CN112897971A (en) | Self-flowing cemented filling material containing superfine tail mud and preparation method and application thereof | |
| CN108911660B (en) | Consolidation material for electrolytic manganese slag stabilization treatment and application thereof | |
| CN106348714A (en) | Cementing filling material for co-processing zinc-containing dangerous waste of mine and preparation method of cementing filling material | |
| CN107473613A (en) | It is a kind of to utilize cement of industrial solid-state castoff production and preparation method thereof | |
| CN113087480A (en) | Application type cemented filling material containing superfine tail mud and preparation method and application thereof | |
| CN107382107A (en) | A kind of method for preparing sulphoaluminate cement clinker using magnesium slag, manganese slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 054100, new town, Hebei, Xingtai Patentee after: JINTAICHENG ENVIRONMENTAL RESOURCES STOCK Co.,Ltd. Address before: 054100, new town, Hebei, Xingtai Patentee before: HEBEI JINTAICHENG BUILDING MATERIAL Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20220915 Address after: South of Jinma Street, East of Qunying Road, and North of Baota Street, Baita Town, Shahe City, Xingtai City, Hebei Province, 054199 Patentee after: Hebei Kehui Environmental Resources Co.,Ltd. Address before: Baicuo Village, Xincheng Town, Xingtai City, Hebei Province 054100 Patentee before: JINTAICHENG ENVIRONMENTAL RESOURCES STOCK Co.,Ltd. |
|
| TR01 | Transfer of patent right |