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Rapid concrete repairing material for roads and preparation process thereof

A technology of concrete and repair material, which is applied in the field of concrete, can solve the problems of inability to solidify quickly, achieve the effect of small volume shrinkage, increase compressive strength and flexural strength, high concrete flexural strength and concrete compressive strength

Active Publication Date: 2020-09-08
河南德鑫新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But application number is that the patent of 2005100381057 discloses a kind of highway and airport runway surface ultra-thin layer rapid repair material, and the flexural strength of this repair material reaches 2~4MPa after 2-3 hours, and compressive strength reaches 20~30MPa, can Reaching excellent flexural strength and compressive strength in a short period of time, it can only adapt to maintain a fast repair speed in an environment above 20 degrees Celsius, but cannot perform rapid solidification in a lower environment

Method used

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  • Rapid concrete repairing material for roads and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of quick repair material for concrete for road

[0040] (1) Mix tartaric acid, polycarboxylate superplasticizer, lithium carbonate, and water evenly to obtain a mixed solution, which is divided into three parts on average for subsequent use;

[0041] (2) Mix high aluminate rapid hardening cement, Portland cement, high molecular polymer, continuous grade river sand with a particle size of 0.65-1mm, and fly ash, and then add three parts of the mixed solution in turn, and continue stirring And mix evenly, add 100-300 mesh alunite expansion agent and special composite admixture successively after adding three parts of mixed solution, after stirring evenly, get concrete quick repairing material for road.

[0042]Among them, the high-molecular polymer is prepared by the following method: add acrylate and vinyl ester to water, stir and mix evenly, then add polyvinyl alcohol fiber, after stirring evenly, keep it standing at 80°C for 2 hours, and cool down to 20°C. ℃, st...

Embodiment 2

[0045] A kind of quick repair material for concrete for road

[0046] (1) Mix tartaric acid, polycarboxylate superplasticizer, lithium carbonate, and water evenly to obtain a mixed solution, which is divided into three parts on average for subsequent use;

[0047] (2) Mix high aluminate rapid hardening cement, portland cement, high molecular polymer, continuous grade river sand with a particle size of 0.65-1mm, and slag micropowder, and then add three parts of the mixed solution successively, continuously stir and Mix evenly, add 100-300 mesh alunite expansion agent and special composite admixture successively after adding three parts of mixed solution, and after stirring evenly, obtain concrete rapid repair material for road.

[0048] Among them, the high molecular polymer is prepared by the following method: add acrylate and vinyl ester in water, stir and mix evenly, then add polyvinyl alcohol fiber, after stirring evenly, keep it standing at 85°C for 1.5h, cool down to Sti...

Embodiment 3

[0051] A kind of quick repair material for concrete for road

[0052] (1) Mix tartaric acid, polycarboxylate superplasticizer, lithium chloride, and water evenly to obtain a mixed solution, and divide it into three parts on average for subsequent use;

[0053] (2) Mix high aluminate rapid hardening cement, portland cement, high molecular polymer, continuous grade river sand with a particle size of 0.65-1mm, and silica fume, then add three parts of the mixed solution in turn, continuously stir and Mix evenly, add 100-300 mesh alunite expansion agent and special composite admixture successively after adding three parts of mixed solution, and after stirring evenly, obtain concrete rapid repair material for road.

[0054] Among them, the high molecular polymer is prepared by the following method: add acrylate and vinyl ester in water, stir and mix evenly, then add polyvinyl alcohol fiber, after stirring evenly, keep it standing at 90°C for 1 hour, cool down to 30°C ℃, stirring fo...

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Abstract

The invention relates to a rapid concrete repairing material for roads and a preparation process thereof, belongs to the technical field of concrete, and solves the problems that in the prior art, a concrete rapid repairing material for roads is long in solidification time in a low-temperature environment, and the compressive strength and the flexural strength are relatively low. The rapid concrete repairing material for the roads comprises the raw materials: water, high-aluminate rapid hardening cement, Portland cement, a high-molecular polymer, tartaric acid, a setting accelerator, an alunite expanding agent, a polycarboxylate water reducer, an admixture, a fine aggregate and a special composite additive, wherein the special composite additive comprises iron powder, calcium oxide and hydrophilic colloid. According to the rapid concrete repairing material for the roads, the rapid concrete repairing material for the roads is cured at a relatively low temperature, and relatively high compressive strength and flexural strength are achieved.

Description

technical field [0001] The invention relates to the technical field of concrete, more specifically, it relates to a concrete quick repair material for roads and a preparation process thereof. Background technique [0002] With the rapid development of my country's national economy, the construction of various roads, bridges, and municipal projects is rapid. Among them, the proportion of cement concrete pavement increased significantly. Under the repeated action of loads and the continuous influence of factors such as freeze-thaw cycle, salt freezing, carbonization, etc., as well as the combined effects of many factors such as design, construction, and maintenance, the cement concrete pavement will inevitably deteriorate during use. Various damages, such as cracks, potholes, cracks, etc., will affect the speed and quality of traffic and cause traffic problems. In order to minimize traffic problems, repairs to damaged pavement must be carried out in a timely manner. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/72
CPCC04B28/06C04B2111/72C04B2201/50C04B7/02C04B22/002C04B24/06C04B2103/302C04B22/10C04B18/08C04B14/068C04B24/2641C04B16/0641C04B22/148C04B22/04C04B22/064C04B24/16C04B18/141C04B22/124C04B18/146
Inventor 胡鹏冯建华张晓克
Owner 河南德鑫新型建材有限公司