CN102826813B - 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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- CN102826813B CN102826813B CN201210321600.9A CN201210321600A CN102826813B CN 102826813 B CN102826813 B CN 102826813B CN 201210321600 A CN201210321600 A CN 201210321600A CN 102826813 B CN102826813 B CN 102826813B
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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 by a kind of road face low temperature rapid-patching motar that accurately proportioning is composited such as silicate cement, aluminate cement, anhydrite, quartz sand, Steel-slag Sand, EVA latex powder, hydroxyethylmethyl-cellulose, Quilonum Retard and silicone antifoam agent and preparation method thereof.
Background technology
Along with Chinese national economy high speed development, various highways, bridge, municipal engineering construction are swift and violent.Wherein, cement concrete pavement proportion amplification is remarkable.The repeated action of load and physical environment as the continuous impact of the factors such as freeze-thaw cycle, salt freeze, carbonization under, and under the comprehensive action of the factors such as design, construction, maintenance, cement concrete road surface during use, inevitably can produce various damages, as 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 repair reparation to the road face damaging in time.
Conventional road face patching material mainly contains bituminous concrete, special cement, epoxy resin etc. at present.Although it is simple and convenient to adopt bituminous concrete to repair, large with cement concrete road surface stiffness differences, color is inharmonious, can only serve as interim impatient treatment measures; Special cement fast solidifying, early strength is high, close with Young's modulus and the thermal expansivity of old concrete road face, but can produce strength retraction and dry shrinkage problems of crack; A difficult problem expensive, loss of properties on aging that epoxy resin exists.And above-mentioned several roads face patching material is to be mainly applied to normal temperature Xia road face repairing work, be difficult to meet.Low temperature (for example, below 5 ℃) situation Xia road face repairing work needs.
Based on this, the present invention is in order to realize the Rapid-Repair of road face under low temperature condition, reduce construction period, reduce road face and repair the impact on traffic, comprehensive utilization silicate cement later strength is high, aluminate cement early strength is high and development rapid, anhydrite coagulates effect to the good tune of aluminate cement, accurately composite by three kinds of inorganic coagulation materials, and the improvement effect to cement-based material physical and mechanical property in conjunction with different polymer materialss, 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 compared with road under low environment, be difficult to for solving China a difficult problem that realizes Rapid-Repair, affects road, obtain road face low temperature rapid-patching motar of constructing under the lower and applicable cold condition of a kind of high comprehensive performance, cost and preparation method thereof by development.
The present invention adopts following technical scheme to realize above-mentioned purpose: a kind of 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, quartz sand: 30-60 part, Steel-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.
In the present invention, described gelling material is the compound gelling material of the compositions such as silicate cement, aluminate cement, anhydrite, wherein silicate cement is P.II 52.5R silicate cement, and aluminate cement is CA-50 aluminate cement, and anhydrite is levigate natural anhydrite.
In the present invention, described aggregate is grating quartz sand and Steel-slag Sand, and grating quartz sand is that the continuous grading quartz sand of 0.1-1.5mm, the pressure that Steel-slag Sand is 0.1-1.5mm are steamed the qualified continuous grading Steel-slag Sand of stability.
In the present invention, its viscosity of described hydroxyethylmethyl-cellulose is 6000-45000mPa.s.
The road concrete preparation method's step of face low temperature rapid-patching motar that the present invention proposes is as follows: after weighing by weight proportion, first utilize the mixing machine that mixing rate is 50-150r/min that silicate cement, aluminate cement, anhydrite, EVA latex powder, hydroxyethylmethyl-cellulose, Quilonum Retard and silicone antifoam agent etc. are mixed, then in above-mentioned mixing machine, said mixture and quartz sand and Steel-slag Sand are mixed together evenly, obtain desired product.
In the present invention, as gelling material, silicate cement hydration reaction generates the hydrated products such as CSH gel, guarantee that mending mortar has higher later strength, aluminate cement has fast, the early strong high feature of reaction, even if still can there is at low temperatures hydration reaction faster, for mending mortar provides higher early strength, anhydrite plays regulation and control aluminate cement hydration reaction speed, regulates the effect of time of coagulation.Quartz sand and Steel-slag Sand, as the good aggregate of grating, play and improve mortar pore structure, improve the effect of density and intensity; In addition Steel-slag Sand also further improves the wear resistance of mortar.Quilonum Retard further improves mortar early strength at low temperatures.EVA latex powder is met water dissolution, is interweaved with hydrolysis product of cement, forms polymeric film, makes mortar have good snappiness, adhesive property and endurance quality; Hydroxyethylmethyl-cellulose has excellent water-retentivity, guarantees that mortar has good workability; Silicone antifoam agent significantly reduces the inner air content of mortar, improves intensity and the weather resistance of mortar.By the reasonable disposition between each composition material, effectively utilize the characteristic of differing materials, make it there is good physical and mechanical property, especially under low temperature (5 ℃ ~+5 ℃), can produce fast higher intensity, there is good workability, meet the road quick patching needs under low temperature condition; Utilize in a large number in addition the industrial solid castoffs such as Steel-slag Sand, there is certain environmental benefit.
The extraordinary dry-mixed mortar that road of the present invention face low temperature rapid-patching motar finished product is single-component, while utilizing it to carry out site operation, the performance requriements according to engineering to mending mortar, only need mix it can use with appropriate tap water.
Road of the present invention face low temperature rapid-patching motar, has early strength high, and feature, especially in lesser temps situation (for example-5 ℃ ~+5 ℃) of the high and steady progression of later strength 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, meets corresponding repairing work needs.
Road of the present invention face low temperature rapid-patching motar, has higher folding strength, cohesive strength, and good shock resistance, wear resisting property, especially, under the 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 meet various repairing works, the especially quick fix engineering under low temperature condition, the Rapid-Repairs of field under the low temperature environments such as autumn and winter such as for example municipal administration, road, bridge.
In sum, the each performance index of road face low temperature rapid-patching motar of the present invention are good, quality is easy to control, and production process is simple, applied widely, and especially the engineering under low temperature environment is repaired, and can carry out large-scale promotion application.
Embodiment
Further illustrate the present invention below by embodiment.
Embodiment 1: component and the proportioning (weight percent) of road face low temperature rapid-patching motar are: silicate cement: 25, aluminate cement: 8.5, anhydrite: 5, quartz sand: 50, Steel-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.In the mortar of 100 parts, add the tap water of 22 parts.
The results of property that 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: 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, quartz sand: 45, Steel-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.In the mortar of 100 parts, add the tap water of 20 parts.
The results of property that 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
From above embodiment, road of the present invention face low temperature rapid-patching motar can be prepared the quick repairing mortar using under the low temperature environment of different intensity grades.Property indices all meets or exceedes relevant criterion and Practical Project requirement, and Site, construct convenient, construction is rear and body material consistency is good, cohesive strength is high, can the repairing work of wide popularization and application under repairing work, the especially low temperature environments such as different kinds of roads, bridge, municipal administration.
Claims (5)
1.Yi Zhong 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, quartz sand: 45-50 part, Steel-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: described silicate cement is P.II 52.5R silicate cement, aluminate cement is CA-50 level aluminate cement, and anhydrite is levigate natural anhydrite.
3. road according to claim 1 face low temperature rapid-patching motar, is characterized in that: the grating of described quartz sand is the continuous grading quartz sand of 0.1-1.5mm, and Steel-slag Sand is that the pressure of 0.1-1.5mm is steamed the qualified continuous grading Steel-slag Sand of stability.
4. road according to claim 1 face low temperature rapid-patching motar, 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: after weighing by weight proportion, first utilize the mixing machine that mixing rate is 50-150r/min that silicate cement, aluminate cement, anhydrite, EVA latex powder, hydroxyethylmethyl-cellulose, Quilonum Retard and silicone antifoam agent are mixed, then in above-mentioned mixing machine, said mixture and quartz sand and Steel-slag Sand are mixed together evenly, obtain desired product.
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| CN201210321600.9A CN102826813B (en) | 2012-09-04 | 2012-09-04 | Low-temperature quick repair mortar for pavement and preparation method for low-temperature quick repair mortar |
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| CN201210321600.9A CN102826813B (en) | 2012-09-04 | 2012-09-04 | Low-temperature quick repair mortar for pavement and preparation method for low-temperature quick repair mortar |
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| CN102826813B true CN102826813B (en) | 2014-05-21 |
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Families Citing this family (10)
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| 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 |
| 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 |
| 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 |
| 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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| JP4563835B2 (en) * | 2004-02-20 | 2010-10-13 | 電気化学工業株式会社 | Mortar composition, mortar, and cured mortar using the same |
| CN100532725C (en) * | 2005-01-11 | 2009-08-26 | 桂永全 | Bridge paving material with big span |
| CN102115320B (en) * | 2009-12-31 | 2013-05-01 | 北京市建筑工程研究院有限责任公司 | Super early strength mortar |
| CN101913827A (en) * | 2010-08-26 | 2010-12-15 | 卢建华 | Waterproof and anti-corrosion repair mortar for polymer cement-based concrete structure |
| CN102503318B (en) * | 2011-10-24 | 2013-11-06 | 沈阳建筑大学 | High bending strength cement-based grouting material |
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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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