CN102826813A - Low-temperature quick repair mortar for pavement and preparation method for low-temperature quick repair mortar - Google Patents
Low-temperature quick repair mortar for pavement and preparation method for low-temperature quick repair mortar Download PDFInfo
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- CN102826813A CN102826813A CN2012103216009A CN201210321600A CN102826813A CN 102826813 A CN102826813 A CN 102826813A CN 2012103216009 A CN2012103216009 A CN 2012103216009A CN 201210321600 A CN201210321600 A CN 201210321600A CN 102826813 A CN102826813 A CN 102826813A
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Abstract
The invention belongs to the technical field of building materials and particularly relates to the fields of low-temperature quick repair mortar for pavement and preparation methods for the low-temperature quick repair mortar. The low-temperature quick repair mortar comprises the following components in parts by weight: 25-35 parts of portland cement, 5-10 parts of aluminate cement, 3-6 parts of anhydrite, 30-60 parts of quartz sand, 8-15 parts of steel slag sand, 0.8-1.5 parts of emulsion powder, 0.1-0.3 part of cellulose ether, 0.2-0.4 part of lithium carbonate and 0.05-0.1 part of defoaming agent. The low-temperature quick repair mortar for the pavement disclosed by the invention has the advantages of excellent physical and mechanical performances, higher strength development at low temperature, higher strength, high bonding strength with an old pavement substrate and favorable wear resistance and durability; the low-temperature quick repair mortar is applied to road repair; particularly when the low-temperature quick repair mortar is applied to road repair in a low-temperature environment, the construction period can be greatly shortened, higher mechanical strength in a short period and a low temperature environment can be ensured, the construction efficiency is increased, the quality of projects is ensured and the cost of road maintenance projects is reduced.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of road face low temperature rapid-patching motar that is composited by precise proportioning such as silicate cement, aluminate cement, anhydrite, silica sand, slag sand, EVA latex powder, hydroxyethylmethyl-cellulose, Quilonum Retard and silicone antifoam agents and preparation method thereof.
Background technology
Along with the Chinese national economy high speed development, various highways, bridge, municipal engineering construction are swift and violent.Wherein, cement concrete pavement proportion amplification is remarkable.Under the continuous influence of factors such as effect repeatedly and physical environment such as freeze-thaw cycle, the salt at load freezes, carbonization; And under the comprehensive action of many factors such as design, construction, maintenance; Cement concrete road surface can produce various damages during use inevitably, like cracking, hole groove, be full of cracks etc.; Have influence on traffic passage rate and quality, produce traffic problems.For reduce traffic problems as far as possible, must in time repair reparation to the road face that damages.
Road face patching material commonly used at present mainly contains bituminous concrete, special cement, epoxy resin etc.Though it is simple and convenient to adopt bituminous concrete to repair, big with the cement concrete road surface stiffness differences, color is inharmonious, can only be as interim impatient treatment measures; The special cement fast solidifying, early strength is high, and is close with the Young's modulus and the thermal expansivity of old concrete road face, but can produce strength retraction and dry shrinkage problems of crack; Epoxy resin then exists and costs an arm and a leg, the difficult problem of loss of properties on aging.And above-mentioned several kinds of road face patching materials mainly are the road face repairing works that is applied under the normal temperature, are difficult to satisfy.Road face repairing work under low temperature (for example below the 5 ℃) situation needs.
Based on this; The present invention is in order to realize the quick repairing of road face under the low temperature condition; Reduce construction period; Reduce the road face and repair influence traffic, comprehensive utilization silicate cement later strength is high, the aluminate cement early strength is high and development rapidly, anhydrite coagulates effect to the good accent of aluminate cement, accurately composite through three kinds of inorganic coagulation materials; And combine of the improvement effect of various polymerization thing material to the cement-based material physical and mechanical property, carry out the development of face low temperature rapid-patching motar and preparation method thereof.
Summary of the invention
The object of the invention is; After temperature is damaged than the road low environment under, be difficult to the difficult problem that realizes quick repairing, influence road for solving China, through development obtain a kind of high comprehensive performance, cost is lower and suitable coldcondition under the road face low temperature rapid-patching motar of constructing and preparation method thereof.
The present invention adopts following technical scheme to realize above-mentioned purpose: a kind of road face low temperature rapid-patching motar, and it is characterized in that: its component and parts by weight are: silicate cement: 25-35 part, aluminate cement: 5-10 part; Anhydrite: 3-6 part, silica sand: 30-60 part, slag sand: 8-15 part; EVA latex powder: 0.8-1.5 part; Hydroxyethylmethyl-cellulose: 0.1-0.3 part, Quilonum Retard: 0.2-0.4 part, silicone antifoam agent: 0.05-0.1 part; Its gross weight umber is 100 parts.
Among the present invention; Described gelling material is the compound gelling material that silicate cement, aluminate cement, anhydrite etc. are formed; Wherein silicate cement is a P.II 52.5R silicate cement, and aluminate cement is the CA-50 aluminate cement, and anhydrite is the levigated natural anhydrite.
Among the present invention, described aggregate is grating silica sand and slag sand, and grating silica sand is that the continuous grading silica sand of 0.1-1.5mm, the pressure that slag sand is 0.1-1.5mm are steamed the qualified continuous grading slag sand of stability.
Among the present invention, its viscosity of described hydroxyethylmethyl-cellulose is 6000-45000mPa.s.
The road concrete preparing method's step of face low temperature rapid-patching motar that the present invention proposes is following: by weight proportion after the weighing; Utilize mixing rate silicate cement, aluminate cement, anhydrite, EVA latex powder, hydroxyethylmethyl-cellulose, Quilonum Retard and silicone antifoam agent etc. to be mixed earlier for the mixing machine of 50-150r/min; In above-mentioned mixing machine, be mixed together said mixture and silica sand and slag sand evenly then, promptly get desired product.
Among the present invention, as gelling material, the silicate cement hydration reaction generates hydrated products such as CSH gel; Guarantee that mending mortar has higher later strength; Aluminate cement has fast, the early strong high characteristics of reaction, even still hydration reaction faster can take place at low temperatures, for mending mortar provides higher early strength; Anhydrite plays regulation and control aluminate cement hydration reaction speed, regulates the effect of time of coagulation.Silica sand and slag sand play and improve the mortar pore structure as the good aggregate of grating, improve the effect of density and intensity; Slag sand also further improves the wear resistance of mortar in addition.Quilonum Retard further improves mortar early strength at low temperatures.The EVA latex powder is met water dissolution, is interweaved with the hydrated cementitious product, forms polymeric film, makes mortar have good snappiness, adhesive property and endurance quality; Hydroxyethylmethyl-cellulose has excellent water-retentivity, guarantees that mortar has good operation property; Silicone antifoam agent significantly reduces the inner air content of mortar, improves the intensity and the weather resistance of mortar.Through the reasonable disposition between each composition material; Effectively utilize the characteristic of differing materials; Make it have good physical and mechanical property; Especially can produce higher intensity fast down at low temperature (5 ℃ ~+5 ℃), have good construction performance, satisfy the road quick patching needs under the low temperature condition; Utilize industrial solid castoffs such as slag sand in addition in a large number, have certain environmental benefit.
Road of the present invention face low temperature rapid-patching motar finished product is the extraordinary dry-mixed mortar of single-component, when utilizing it to carry out site operation, according to the performance requriements of engineering to mending mortar, only needs itself and an amount of tap water are mixed and can use.
Road of the present invention face low temperature rapid-patching motar has the early strength height, and the characteristics of later strength height and steady progression, especially under the lesser temps situation (for example-5 ℃ ~+5 ℃) still can have higher early stage and later strength.
Road of the present invention face low temperature rapid-patching motar, workability is good, and operable time is long, and time of coagulation is adjustable, satisfies corresponding repairing work needs.
Road of the present invention face low temperature rapid-patching motar has higher folding strength, cohesive strength, and favorable shock resistance, wear resisting property especially under environment such as low temperature, salt corrosion, freeze thawing, still can keep good performance.
Road of the present invention face low temperature rapid-patching motar can satisfy various repairing works, especially the quick fix engineering under the low temperature condition, the for example quick repairings of field under low temperature environments such as autumn and winter such as municipal administration, road, bridge.
In sum, road of the present invention each performance index of face low temperature rapid-patching motar are good, quality is easy to control, and production process is simple, and is applied widely, and especially the engineering under the low temperature environment is repaired, and can carry out large-scale promotion application.
Embodiment
Further specify the present invention through embodiment below.
Embodiment 1: the component and the proportioning (weight percent) of road face low temperature rapid-patching motar are: silicate cement: 25, aluminate cement: 8.5, anhydrite: 5, silica sand: 50, slag sand: 10, EVA latex powder: 1.0, hydroxyethylmethyl-cellulose: 0.2, Quilonum Retard: 0.2, silicone antifoam agent: 0.1.Its gross weight umber is 100 parts.Add 22 parts tap water in 100 parts the mortar.
The results of property that the detection test obtains is as shown in table 1.
The road face low temperature rapid-patching motar The performance test results of table 1 embodiment 1
Embodiment 2: the component and the proportioning (weight percent) of road face low temperature rapid-patching motar are: silicate cement: 31.8, aluminate cement: 6, anhydrite: 3.5, silica sand: 45, slag sand: 12, EVA latex powder: 1.2, hydroxyethylmethyl-cellulose: 0.15, Quilonum Retard: 0.3, silicone antifoam agent: 0.05.Its gross weight umber is 100 parts.Add 20 parts tap water in 100 parts the mortar.
The results of property that the detection test obtains is as shown in table 2.
The road face low temperature rapid-patching motar The performance test results of table 2 embodiment 2
Visible by above embodiment, road of the present invention face low temperature rapid-patching motar can be prepared the quick repairing mortar that uses under the low temperature environment of different intensity grades.Each item performance index all satisfy or surpass relevant criterion and actual engine request; And stir at the scene, construction is convenient; The construction back is good with the body material consistency, cohesive strength is high; Can the repairing work of wide popularization and application under repairing work, especially low temperature environments such as different kinds of roads, bridge, municipal administration.
Claims (5)
1. road face low temperature rapid-patching motar, it is characterized in that: its component and parts by weight are: silicate cement: 25-35 part, aluminate cement: 5-10 part; Anhydrite: 3-6 part, silica sand: 30-60 part, slag sand: 8-15 part; EVA latex powder: 0.8-1.5 part, hydroxyethylmethyl-cellulose: 0.1-0.3 part, Quilonum Retard: 0.2-0.4 part; Silicone antifoam agent: 0.05-0.1 part, its gross weight umber is 100 parts.
2. road according to claim 1 face low temperature rapid-patching motar is characterized in that: said silicate cement is a P.II 52.5R silicate cement, and aluminate cement is a CA-50 level aluminate cement, and anhydrite is the levigated natural anhydrite.
3. road according to claim 1 face low temperature rapid-patching motar is characterized in that: the grating of said silica sand is the continuous grading silica sand of 0.1-1.5mm, and slag sand is that the pressure of 0.1-1.5mm is steamed the qualified continuous grading slag sand of stability.
4. road according to claim 1 face low temperature rapid-patching motar, it is characterized in that: its viscosity of described hydroxyethylmethyl-cellulose is 6000-45000mPa.s.
5. the preparation method of a road as claimed in claim 1 face low temperature rapid-patching motar; It is characterized in that concrete steps are: by weight proportion after the weighing; Utilize mixing rate silicate cement, aluminate cement, anhydrite, EVA latex powder, hydroxyethylmethyl-cellulose, Quilonum Retard and silicone antifoam agent to be mixed earlier for the mixing machine of 50-150r/min; In above-mentioned mixing machine, be mixed together said mixture and silica sand and slag sand evenly then, promptly get desired product.
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| CN102826813B CN102826813B (en) | 2014-05-21 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253901A (en) * | 2013-06-06 | 2013-08-21 | 上海昱喜新材料科技有限公司 | Concrete bridge-deck rapid paving mortar and preparation method thereof |
| CN105777042A (en) * | 2016-03-21 | 2016-07-20 | 同济大学 | Anti-disturbance repair mortar and method for applying same |
| CN105819801A (en) * | 2016-03-21 | 2016-08-03 | 同济大学 | Inorganic thermal insulation mortar toughened by doping wheat straw fibers and application method thereof |
| CN106892630A (en) * | 2017-02-14 | 2017-06-27 | 华北水利水电大学 | Cement Concrete Pavement Reconstruction material and preparation method thereof |
| CN109336525A (en) * | 2018-09-26 | 2019-02-15 | 冯丽霞 | A kind of Bridge Crack repair materials and preparation method thereof with selfreparing effect |
| CN110451897A (en) * | 2019-08-01 | 2019-11-15 | 江苏建鸿环保材料科技有限公司 | A kind of grouting material, application and its construction method |
| CN110845204A (en) * | 2019-08-15 | 2020-02-28 | 浙江忠信新型建材股份有限公司 | Polymer repair mortar used under low-temperature condition, and preparation method and construction method thereof |
| CN111704421A (en) * | 2020-06-16 | 2020-09-25 | 中铁西南科学研究院有限公司 | Cement pavement thin layer repairing material and using method thereof |
| CN113149494A (en) * | 2021-04-20 | 2021-07-23 | 武汉理工大学 | Steel slag resource utilization method |
| CN117682792A (en) * | 2023-12-06 | 2024-03-12 | 淮北旭日新材料股份有限公司 | Dry-mixed mortar additive, preparation method and application |
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| CN103253901A (en) * | 2013-06-06 | 2013-08-21 | 上海昱喜新材料科技有限公司 | Concrete bridge-deck rapid paving mortar and preparation method thereof |
| CN103253901B (en) * | 2013-06-06 | 2016-01-13 | 上海昱喜新材料科技有限公司 | A kind of concrete bridge deck fast spreading mortar and preparation method thereof |
| CN105777042B (en) * | 2016-03-21 | 2018-06-29 | 同济大学 | A kind of disturbance rejection mending mortar and its application method |
| CN105819801A (en) * | 2016-03-21 | 2016-08-03 | 同济大学 | Inorganic thermal insulation mortar toughened by doping wheat straw fibers and application method thereof |
| CN105777042A (en) * | 2016-03-21 | 2016-07-20 | 同济大学 | Anti-disturbance repair mortar and method for applying same |
| CN106892630A (en) * | 2017-02-14 | 2017-06-27 | 华北水利水电大学 | Cement Concrete Pavement Reconstruction material and preparation method thereof |
| CN106892630B (en) * | 2017-02-14 | 2018-06-08 | 华北水利水电大学 | Cement Concrete Pavement Reconstruction material and preparation method thereof |
| CN109336525A (en) * | 2018-09-26 | 2019-02-15 | 冯丽霞 | A kind of Bridge Crack repair materials and preparation method thereof with selfreparing effect |
| CN109336525B (en) * | 2018-09-26 | 2019-06-28 | 冯丽霞 | A kind of Bridge Crack repair materials and preparation method thereof with selfreparing effect |
| CN110451897A (en) * | 2019-08-01 | 2019-11-15 | 江苏建鸿环保材料科技有限公司 | A kind of grouting material, application and its construction method |
| CN110845204A (en) * | 2019-08-15 | 2020-02-28 | 浙江忠信新型建材股份有限公司 | Polymer repair mortar used under low-temperature condition, and preparation method and construction method thereof |
| CN111704421A (en) * | 2020-06-16 | 2020-09-25 | 中铁西南科学研究院有限公司 | Cement pavement thin layer repairing material and using method thereof |
| CN111704421B (en) * | 2020-06-16 | 2022-06-10 | 中铁西南科学研究院有限公司 | Cement pavement thin layer repairing material and using method thereof |
| CN113149494A (en) * | 2021-04-20 | 2021-07-23 | 武汉理工大学 | Steel slag resource utilization method |
| CN117682792A (en) * | 2023-12-06 | 2024-03-12 | 淮北旭日新材料股份有限公司 | Dry-mixed mortar additive, preparation method and application |
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| CN102826813B (en) | 2014-05-21 |
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Application publication date: 20121219 Assignee: SHANGHAI PUDONG NEW DISTRICT ROAD CONSTRUCTION DEVELOPMENT CO., LTD. Assignor: Tongji University Contract record no.: 2015990000662 Denomination of invention: Low-temperature quick repair mortar for pavement and preparation method for low-temperature quick repair mortar Granted publication date: 20140521 License type: Exclusive License Record date: 20150723 |
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