CN105859225A - Highly permeable concrete based on rice husk ash - Google Patents
Highly permeable concrete based on rice husk ash Download PDFInfo
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- CN105859225A CN105859225A CN201610322853.6A CN201610322853A CN105859225A CN 105859225 A CN105859225 A CN 105859225A CN 201610322853 A CN201610322853 A CN 201610322853A CN 105859225 A CN105859225 A CN 105859225A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a highly permeable concrete based on rice husk ash. The highly permeable concrete is prepared from the following raw materials in parts by weight: 312-314 parts of cement, 26-28 parts of rice husk ash, 1394-1396 parts of aggregate I, 104-106 parts of aggregate II, 2-4 parts of a plasticizer and 111-113 parts of water, wherein the raw materials also comprise auxiliary additives; the adding amount of the auxiliary additives is 0.2-0.4% of the amount of the concrete by volume . The concrete provided by the invention not only can maintain the concrete strength, but also has high water permeability; the nature is related to the dosage of the rice husk ash; the technical effect can be played only by controlling the dosage of the rice husk ash within a protection scope of the invention; compared with the prior art, the concrete provided by the invention has prominent substantive features and notable progresses.
Description
Technical field
The present invention relates to construction material, be specifically related to a kind of high pervious concrete based on rice hull ash.
Background technology
Rice hull ash is rich in silicon dioxide (SiO2), after being mixed concrete, highly active SiO2Can quickly with hydrated cementitious shape
The calcium hydroxide become reacts and produces low calcium hydrated calcium silicate gel, so that concrete density strengthens, intensity increases, splitting
Tensile strength, adhesion strength, axial tensile strength, the performance such as antirust can significantly improve and improve, and are the most widely used
In large-scale modern building and expressway construction.
Research to rice hull ash cement concrete is concentrated mainly on building material field, and goal in research essentially consists in and improves concrete
The aspect such as intensity and degree of compaction.As a kind of mixed with the high-strength concrete of low-temperature rice husk ash, its composition mainly by Portland cement,
Low-temperature rice husk ash, slag powders, flyash, rubble, fluvial sand, water and water reducer composition (patent publication No.: CN102643060A).
For another example one prepares low-cementitious material self-compacting concrete using rice hull ash as interior sealing compound, and its component includes: portland cement；
Rice hull ash；Slag micropowder；Modified polycarboxylic acid water reducer and packing material (patent publication No.: CN104761212A).To rice
The research of shell ash concrete configuration rarely has the research about highly-permeable concrete.Permeable concrete is mainly used in porous pavement and builds
Building in material, existing pervious concrete material is relatively big due to its space, result in its intensity and ruggedness is relatively low.How
The high permeability rate improving concrete on the premise of proof strength and durability is that the key issue solved is badly in need of in this field at present.
Summary of the invention
It is an object of the invention to provide a kind of high pervious concrete based on rice hull ash, on the premise of proof strength and durability
Improve the permeability rate of concrete.
The above-mentioned purpose of the present invention is achieved by techniques below scheme:
A kind of high pervious concrete based on rice hull ash, is prepared from by the raw material of following weight portion: cement, 312～314 parts；
Rice hull ash, 26～28 parts；I, 1394～1396 part of aggregate；II, 104～106 part of aggregate；Plasticizer, 2～4 parts；Water, 111～113
Part；Also including additional dose, the volume that adds of additional dose is the 0.2～0.4% of volume of concrete.
Further, described concrete is prepared from by the raw material of following weight portion: cement, 313 parts；Rice hull ash, 27
Part；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water, 112 parts；Also include additional dose, additional dose
Add volume be the 0.3% of volume of concrete.
Further, the preparation method of described rice hull ash is: by rice husk calcination 11～13 hours under the conditions of 500～700 DEG C, cold
Take out standby the most afterwards.
Further, described rice hull ash contains the composition of following weight percentage: SiO2, 88.5%；Al2O3, 0.31%；Fe2O3,
0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%；Rice hull ash density is about 2.1kg/m3,
Specific surface area is about 370m2/kg。
Further, described aggregate I is sandstone, its D10, D50, D60 and impartial coefficient be respectively 0.31mm, 0.7mm,
1.0mm and 3.2.
Further, described aggregate II is blinding, its D10, D50, D60 and impartial coefficient be respectively 7.6mm, 10.2mm,
11mm and 1.4.
Further, described cement is 32.5 grade composite silicate cement.
Further, described plasticizer is saturated carboxylic acid ester.
Further, described saturated carboxylic acid ester proportion under 25 DEG C of temperature conditionss is 1.05～1.08.
Further, described additional dose is polyphenylene sulfide.
Advantages of the present invention:
The concrete that the present invention provides can either keep intensity and the durability of concrete, can have again high permeability rate, solve
This field urgent problem.This character of concrete of the present invention is relevant with the addition of rice hull ash, only by rice hull ash
Addition controls to play above-mentioned technique effect within the scope of the present invention.In terms of existing technologies, the present invention
Concrete there is prominent substantive distinguishing features and significantly progressive.
Detailed description of the invention
Further illustrate the essentiality content of the present invention below in conjunction with embodiment, but do not limit scope with this.To the greatest extent
The present invention is explained in detail by pipe with reference to preferred embodiment, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Embodiment 1: high pervious concrete based on rice hull ash
Cement, 313 parts；Rice hull ash, 27 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
The preparation method of high pervious concrete: according to above proportioning, first proportionally mixes cement, rice hull ash, water and stirs
Mix uniformly, then pour also action of forced stirring 10 minutes such as aggregate and plasticizer into, to ensure that rice hull ash is in aggregate surface attachment uniformly.So
The mould of the rear 200mm of utilization × 100mm × 100mm uses to smash to insert and hits real method making molding.On 20 DEG C of left sides after molding
Overlay film maintenance 28 days in the environment of the right side.
Embodiment 2: high pervious concrete based on rice hull ash
Cement, 312 parts；Rice hull ash, 26 parts；Aggregate I, 1394 parts；Aggregate II, 104 parts；Plasticizer, 2 parts；Water,
111 parts；Also including additional dose, the volume that adds of additional dose is the 0.2% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
The preparation method of high pervious concrete: according to above proportioning, first proportionally mixes cement, rice hull ash, water and stirs
Mix uniformly, then pour also action of forced stirring 10 minutes such as aggregate and plasticizer into, to ensure that rice hull ash is in aggregate surface attachment uniformly.So
The mould of the rear 200mm of utilization × 100mm × 100mm uses to smash to insert and hits real method making molding.On 20 DEG C of left sides after molding
Overlay film maintenance 28 days in the environment of the right side.
Embodiment 3: high pervious concrete based on rice hull ash
Cement, 314 parts；Rice hull ash, 28 parts；Aggregate I, 1396 parts；Aggregate II, 106 parts；Plasticizer, 4 parts；Water,
113 parts；Also including additional dose, the volume that adds of additional dose is the 0.4% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
The preparation method of high pervious concrete: according to above proportioning, first proportionally mixes cement, rice hull ash, water and stirs
Mix uniformly, then pour also action of forced stirring 10 minutes such as aggregate and plasticizer into, to ensure that rice hull ash is in aggregate surface attachment uniformly.So
The mould of the rear 200mm of utilization × 100mm × 100mm uses to smash to insert and hits real method making molding.On 20 DEG C of left sides after molding
Overlay film maintenance 28 days in the environment of the right side.
Embodiment 4: high pervious concrete based on rice hull ash
Cement, 313 parts；Rice hull ash, 26 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
The preparation method of high pervious concrete: according to above proportioning, first proportionally mixes cement, rice hull ash, water and stirs
Mix uniformly, then pour also action of forced stirring 10 minutes such as aggregate and plasticizer into, to ensure that rice hull ash is in aggregate surface attachment uniformly.So
The mould of the rear 200mm of utilization × 100mm × 100mm uses to smash to insert and hits real method making molding.On 20 DEG C of left sides after molding
Overlay film maintenance 28 days in the environment of the right side.
Embodiment 5: high pervious concrete based on rice hull ash
Cement, 313 parts；Rice hull ash, 28 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
The preparation method of high pervious concrete: according to above proportioning, first proportionally mixes cement, rice hull ash, water and stirs
Mix uniformly, then pour also action of forced stirring 10 minutes such as aggregate and plasticizer into, to ensure that rice hull ash is in aggregate surface attachment uniformly.So
The mould of the rear 200mm of utilization × 100mm × 100mm uses to smash to insert and hits real method making molding.On 20 DEG C of left sides after molding
Overlay film maintenance 28 days in the environment of the right side.
Embodiment 6: comparative example, rice hull ash weight portion is 25 parts
Cement, 313 parts；Rice hull ash, 25 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
Embodiment 7: comparative example, rice hull ash weight portion is 29 parts
Cement, 313 parts；Rice hull ash, 29 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
Embodiment 8: comparative example, rice hull ash weight portion is 24 parts
Cement, 313 parts；Rice hull ash, 24 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
Embodiment 9: comparative example, rice hull ash weight portion is 30 parts
Cement, 313 parts；Rice hull ash, 30 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
Embodiment 10: comparative example, rice hull ash weight portion is 23 parts
Cement, 313 parts；Rice hull ash, 23 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
Embodiment 11: comparative example, rice hull ash weight portion is 31 parts
Cement, 313 parts；Rice hull ash, 31 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water,
112 parts；Also including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
The preparation method of rice hull ash is: by rice husk calcination 12 hours under the conditions of 600 DEG C, take out standby after cooling.Rice hull ash is close
Degree is about 2.1kg/m3, specific surface area is about 370m2/kg.Composition containing following weight percentage: SiO2, 88.5%；
Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；K2O, 2.13%.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
Embodiment 12: comparative example, without rice hull ash
Cement, 313 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water, 112 parts；Also include
Additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
Aggregate I is sandstone, and its D10, D50, D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2；
Aggregate II is blinding, and its D10, D50, D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Cement uses the 32.5 grade composite silicate cement that Anhui Conch Cement company limited produces.
Plasticizer is saturated carboxylic acid ester, and proportion is (25 DEG C) between 1.05～1.08.
Additional dose is polyphenylene sulfide, about 50mm length, and 0.1mm is thick, and density is about 0.9g/cm3。
Embodiment 13: effect example
Conventionally preparing concrete according to the proportioning raw materials of embodiment 1～11 respectively, it is mixed that the different embodiment of test is prepared
The permeability rate (%) of solidifying soil and comprcssive strength (MPa).Test result see table.
| Sample | Rice hull ash weight portion | Permeability rate (%) | Comprcssive strength (MPa) |
| Embodiment 1 | 27 | 20 | 28 |
| Embodiment 4 | 26 | 20 | 28 |
| Embodiment 5 | 28 | 20 | 28 |
| Embodiment 6 | 25 | 17 | 25 |
| Embodiment 7 | 29 | 21 | 24 |
| Embodiment 8 | 24 | 19 | 23 |
| Embodiment 9 | 30 | 22 | 21 |
| Embodiment 10 | 23 | 20 | 21 |
| Embodiment 11 | 31 | 23 | 18 |
| Embodiment 12 | 0 | 21 | 20 |
The character of the concrete of embodiment 2～3 preparation is basically identical with embodiment 1.
Above-mentioned test result shows, concrete of the present invention can either keep concrete strength, has again high permeability rate, this character
Relevant with the addition of rice hull ash, only the addition control of rice hull ash can be played above-mentioned within the scope of the present invention
Technique effect.In terms of existing technologies, the concrete of the present invention has prominent substantive distinguishing features and significantly progress.
The effect of above-described embodiment indicates that the essentiality content of the present invention, but does not limit protection scope of the present invention with this.
It will be understood by those within the art that, technical scheme can be modified or equivalent, and not take off
Essence and protection domain from technical solution of the present invention.
Claims (10)
1. a high pervious concrete based on rice hull ash, it is characterised in that be prepared from by the raw material of following weight portion: water
Mud, 312～314 parts；Rice hull ash, 26～28 parts；I, 1394～1396 part of aggregate；II, 104～106 part of aggregate；Plasticizer,
2～4 parts；Water, 111～113 parts；Also including additional dose, the volume that adds of additional dose is the 0.2～0.4% of volume of concrete.
Concrete the most according to claim 1, it is characterised in that be prepared from by the raw material of following weight portion: cement,
313 parts；Rice hull ash, 27 parts；Aggregate I, 1395 parts；Aggregate II, 105 parts；Plasticizer, 3 parts；Water, 112 parts；Also
Including additional dose, the volume that adds of additional dose is the 0.3% of volume of concrete.
Concrete the most according to claim 1 and 2, it is characterised in that the preparation method of described rice hull ash is: by rice husk
Calcination 11～13 hours under the conditions of 500～700 DEG C, take out standby after cooling.
Concrete the most according to claim 3, it is characterised in that: described rice hull ash contains the one-tenth of following weight percentage
Point: SiO2, 88.5%；Al2O3, 0.31%；Fe2O3, 0.14%；MgO, 0.36%；CaO, 1.25%；Na2O, 1.15%；
K2O, 2.13%；Rice hull ash density is about 2.1kg/m3, specific surface area is about 370m2/kg。
Concrete the most according to claim 1 and 2, it is characterised in that: described aggregate I is sandstone, its D10, D50,
D60 and impartial coefficient are respectively 0.31mm, 0.7mm, 1.0mm and 3.2.
Concrete the most according to claim 5, it is characterised in that: described aggregate II is blinding, its D10, D50,
D60 and impartial coefficient are respectively 7.6mm, 10.2mm, 11mm and 1.4.
Concrete the most according to claim 1 and 2, it is characterised in that: described cement is 32.5 grade composite silicate cement.
Concrete the most according to claim 1 and 2, it is characterised in that: described plasticizer is saturated carboxylic acid ester.
Concrete the most according to claim 8, it is characterised in that: described saturated carboxylic acid ester ratio under 25 DEG C of temperature conditionss
It is heavily 1.05～1.08.
Concrete the most according to claim 1 and 2, it is characterised in that: described additional dose is polyphenylene sulfide.
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| CN107338692A (en) * | 2017-08-25 | 2017-11-10 | 湖北工业大学 | Rice hull ash Reinforced subgrade and its construction method |
| CN107573010A (en) * | 2017-10-23 | 2018-01-12 | 安徽展大生物科技有限公司 | A kind of stalk exterior wall thermal insulation brick and preparation method thereof |
| CN108409242A (en) * | 2018-03-27 | 2018-08-17 | 刘群 | High pervious concrete |
| CN109369104A (en) * | 2018-11-22 | 2019-02-22 | 中南大学 | A kind of preparation method of high-intensitive, high pervious concrete |
| CN109384423A (en) * | 2018-11-02 | 2019-02-26 | 中国地质大学（武汉） | A kind of water-permeable brick and preparation method thereof to purify water |
| CN112745080A (en) * | 2021-01-13 | 2021-05-04 | 杭州申华混凝土有限公司 | High-permeability concrete and preparation method thereof |
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| CN107338692A (en) * | 2017-08-25 | 2017-11-10 | 湖北工业大学 | Rice hull ash Reinforced subgrade and its construction method |
| CN107573010A (en) * | 2017-10-23 | 2018-01-12 | 安徽展大生物科技有限公司 | A kind of stalk exterior wall thermal insulation brick and preparation method thereof |
| CN108409242A (en) * | 2018-03-27 | 2018-08-17 | 刘群 | High pervious concrete |
| CN108409242B (en) * | 2018-03-27 | 2021-05-07 | 温州华邦混凝土有限公司 | High-permeability concrete |
| CN109384423A (en) * | 2018-11-02 | 2019-02-26 | 中国地质大学（武汉） | A kind of water-permeable brick and preparation method thereof to purify water |
| CN109384423B (en) * | 2018-11-02 | 2020-09-25 | 中国地质大学（武汉） | Water permeable brick capable of purifying water quality and preparation method thereof |
| CN109369104A (en) * | 2018-11-22 | 2019-02-22 | 中南大学 | A kind of preparation method of high-intensitive, high pervious concrete |
| CN109369104B (en) * | 2018-11-22 | 2021-05-18 | 中南大学 | Preparation method of high-strength and high-permeability concrete |
| CN112745080A (en) * | 2021-01-13 | 2021-05-04 | 杭州申华混凝土有限公司 | High-permeability concrete and preparation method thereof |
| CN113121160A (en) * | 2021-04-23 | 2021-07-16 | 徐银田 | Silica sand water permeable brick and preparation method thereof |
| CN113121160B (en) * | 2021-04-23 | 2022-04-12 | 徐银田 | Silica sand water permeable brick and preparation method thereof |
| DE202023102643U1 (en) | 2023-05-15 | 2023-06-07 | Abhinav Bhargav | Composition for sustainable construction fine concrete using PVA nano-calcium carbonate powder and soybean hull |
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