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A kind of cement concrete pavement repair material and preparation method thereof

A cement concrete and pavement repair technology, applied in the field of building materials, can solve the problems of cement concrete with low cohesion, long construction time, easy to fall off, etc., and achieve good waterproof performance, short construction time and good bonding performance

Inactive Publication Date: 2019-06-21
广东嘉集建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has defects such as long construction time, low adhesion to the original cement concrete and easy falling off.

Method used

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  • A kind of cement concrete pavement repair material and preparation method thereof
  • A kind of cement concrete pavement repair material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In the embodiment of the present invention, a kind of cement concrete pavement repairing material, according to the quality raw material comprises: portland cement 55kg, red jade soil 18kg, gravel 47kg, casein 9kg, polyethylene terephthalate 11kg, polyethylene terephthalate Lactic acid 16kg. Sand and gravel include fine sand <3mm, medium sand of 3-5mm, and large sand of 5-8mm, and the mass ratio is 1:1.8:1.3. Crush red jade soil, casein, polyethylene terephthalate and polylactic acid, pass through a 100-mesh sieve, mix well, add Portland cement and mix well; then add sand and mix well, the stirring speed is 200r / min. Then add the required 5% sodium hydroxide aqueous solution by mass, mix and stir for 25 minutes, and then let it stand for 40 minutes to obtain the repair material.

Embodiment 2

[0019] In the embodiment of the present invention, a kind of cement concrete pavement repair material, according to the quality raw material comprises: Portland cement 63kg, red jade soil 26kg, gravel 55kg, casein 17kg, polyethylene terephthalate 19kg, polyethylene terephthalate Lactic acid 24kg. Sand and gravel include fine sand <3mm, medium sand of 3-5mm, and large sand of 5-8mm, and the mass ratio is 1:2.5:1.5. Crush red jade soil, casein, polyethylene terephthalate and polylactic acid, pass through a 120-mesh sieve, mix well, add Portland cement and mix well; then add sand and mix well, the stirring speed is 350r / min. Then add the required 10% aqueous sodium hydroxide solution by mass, mix and stir for 30 minutes, and then let stand for 50 minutes to obtain the repair material.

Embodiment 3

[0021] In the embodiment of the present invention, a kind of cement concrete pavement repairing material, according to the quality raw material comprises: Portland cement 57kg, red jade soil 20kg, gravel 49kg, casein 11kg, polyethylene terephthalate 13kg, polyethylene terephthalate Lactic acid 18kg. Sand and gravel include fine sand <3mm, medium sand of 3-5mm, and large sand of 5-8mm, and the mass ratio is 1:2.2:1.4. Crush red jade soil, casein, polyethylene terephthalate and polylactic acid, pass through a 120-mesh sieve, mix well, add Portland cement and mix well; then add sand and mix well, the stirring speed is 250r / min. Then add the required 8% sodium hydroxide aqueous solution by mass, mix and stir for 28 minutes, and then let stand for 45 minutes to obtain the repair material.

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Abstract

The invention discloses a cement concrete pavement repair material and a preparation method of same. The material includes, by weight, 55-63 parts of Portland cement, 18-26 parts of akadama, 47-55 parts of sand and stone, 9-17 parts of casein, 11-19 parts of polyethylene glycol terephthalate, and 16-24 parts of polylactic acid. The preparation method includes the steps of: crushing and uniformly mixing the akadama, casein, polyethylene glycol terephthalate and polylactic acid, adding the Portland cement, and uniformly mixing the components; and adding the sand and stone and a NaOH water solution, mixing and stirring the mixture and allowing the mixture to stand. The material has excellent low-temperature anti-cracking property, high temperature stability, interface adhesivity, anti-aging property, anti-fatigue performance and high flowability, is suitable for repairing seams and joints on a cement concrete pavement under an extreme cold weather condition. The repair material can restore traffic after the pavement is repaired therewith for 1 h, so that traffic recovery time is greatly reduced. The repair material is free of repeated maintenance when being used for repairing the pavement for one time, and can effectively improve anti-damage property of the pavement, thus prolonging service life of roads.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a cement concrete pavement repair material and a preparation method thereof. Background technique [0002] Pavement cracks, as one of the main road diseases in my country, mainly appear in the early damage of roads. If they are not treated in time, they will seriously affect the performance of roads, advance the road maintenance period and greatly increase maintenance costs, and directly shorten the service life of roads. In Northeast China, due to the low temperature in winter, it is generally -20 to -40°C, but the high temperature in summer can reach about 40°C. Traditional repair materials mostly use ordinary modified asphalt, ordinary joint glue, seam tape and the like. These materials have become glassy at a low temperature of -30°C. During operation, the vehicle will quickly disappear. Cracking occurs, often after a winter, the repair material has partially or m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/72C04B111/20
CPCC04B28/04C04B2111/0075C04B2111/29C04B2111/72C04B2201/50C04B2201/52C04B14/06C04B14/14C04B24/14C04B24/283C04B24/285
Inventor 不公告发明人
Owner 广东嘉集建筑工程有限公司
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