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Quick repair structure of thin layer of cement pavement and construction method

A cement pavement and repair structure technology, which is applied in the direction of roads, roads, pavement details, etc., can solve problems such as bonding failure, out-of-sync deformation of the upper and lower layers at the epoxy micro-surface, and long interruption of traffic, etc., to achieve excellent durability and Anti-slip performance, reduced construction repair times, and short traffic closure time

Pending Publication Date: 2020-02-18
西安斯派新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For pavement concrete surface damage, the demolition and reconstruction of the entire slab is labor-intensive and time-consuming, and the traffic interruption time is long, which is unscientific and uneconomical; the color difference is serious, easy to fall off, and the durability is poor; the deformation of the upper and lower layers of the epoxy micro-surface is not synchronized, and It is easy to age and lead to bonding failure, peeling off; and ordinary peeling off quickly due to weak bonding

Method used

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  • Quick repair structure of thin layer of cement pavement and construction method
  • Quick repair structure of thin layer of cement pavement and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] According to the mass ratio of 1:0.21 osmotic emulsion and mica mixture, the osmotic emulsion and mica mixture are mixed to obtain a road surface sealing layer, the osmotic emulsion is water-based epoxy, and the mica mixture is flake mica;

[0029] According to the mass ratio of 0.38:0.42:0.2 cement-based powder, graded quartz sand and composite emulsion, cement-based powder, graded quartz sand and composite emulsion are mixed to obtain a waterproof micro-surface structure; wherein the cement-based powder It includes P.O42.5 cement with a mass ratio of 0.88:0.005:0.002:0.02, sulphoaluminate cement, water reducer, cellulose fiber, and SP ultra-fast activity accelerator, and the fiber fineness of the cellulose is 1500 mesh. The graded quartz sand is continuously graded, the mass fraction of 10-30 mesh quartz sand is 30%, the mass fraction of 40-70 mesh quartz sand is 40%, and the mass fraction of 70-140 mesh quartz sand is 30%. The compound emulsion is VAE emulsion.

[0...

Embodiment 2

[0032] According to the mass ratio of 1:0.25 osmotic emulsion and mica mixture, the osmotic emulsion and mica mixture are mixed to obtain a road surface sealing layer. The osmotic emulsion is a mixture of silane emulsion and acrylic emulsion, and the mica mixture is talcum powder and quartz. powder mixing;

[0033] According to the mass ratio of 0.4:0.41:0.19 cement-based powder, graded quartz sand and composite emulsion, the cement-based powder, graded quartz sand and composite emulsion are mixed to obtain a waterproof micro-surface structure; wherein the cement-based powder It includes P.O42.5 cement with a mass ratio of 0.91:0.01:0.008:0.06, sulfoaluminate cement, water reducer, cellulose fiber, and SP ultra-fast activity accelerator, and the fiber fineness of the cellulose is 2000 mesh. The gradation of quartz sand is continuous gradation, the mass fraction of 10-30 mesh quartz sand is 30%, the mass fraction of 40-70 mesh quartz sand is 50%, and the mass fraction of 70-140...

Embodiment 3

[0036] According to the mass ratio of 1:0.2 osmotic emulsion and mica mixture, the osmotic emulsion and mica mixture are mixed to obtain a road surface sealing layer, the osmotic emulsion is silane emulsion, and the mica mixture is talcum powder;

[0037] Take cement-based powder, graded quartz sand and composite emulsion according to the mass ratio of 0.35:0.42:0.23, and mix cement-based powder, graded quartz sand and composite emulsion to obtain a waterproof micro-surface structure; wherein, the cement-based powder It includes P.O42.5 cement with a mass ratio of 0.90:0.008:0.005:0.04, sulphoaluminate cement, water reducing agent, cellulose fiber, and SP ultra-fast activity accelerator, and the fiber fineness of cellulose is 1700 mesh. The gradation of quartz sand is continuous gradation, the mass fraction of 10-30 mesh quartz sand is 40%, the mass fraction of 40-70 mesh quartz sand is 30%, and the mass fraction of 70-140 mesh quartz sand is 30%. The composite emulsion is sty...

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Abstract

The invention discloses a quick repair structure of a thin layer of a cement pavement and a construction method. A composite emulsion is used as a macromolecular main body for the waterproof micro-surfacing structure in the micro-surfacing position of the quick repair structure, and the main body material structure and the original concrete structure have the superhigh bonding strength, so that the strength in the micro-surfacing position is increased relatively quickly, the construction speed is high during repair, the traffic closing time is short, and the construction efficiency is improved; and the micro-surfacing position of the quick repair structure has the wear-resistant and non-slip surface, has the good slip resistance and can be kept in a lasting manner, so that the service lifeof the pavement is prolonged, and the construction repair times are reduced.

Description

technical field [0001] The invention belongs to the field of modern road maintenance, and in particular relates to a thin-layer rapid repair structure and construction method of cement pavement. Background technique [0002] The cement concrete pavement structure has the characteristics of high strength, high hardness, high stability and high diffusion load capacity. It plays an important role in the development of my country's national economy and is widely used in expressways, national highways, provincial highways, rural highways, municipal roads, and factory roads. Wait. With the increasing traffic volume, large-scale and heavy-duty vehicles, and various reasons such as the temperature, rain and sunshine in the environment, the cement concrete pavement will inevitably be damaged. , Peeling, sanding, mesh cracking, aggregate exposure, etc., if not repaired in a timely and effective manner, the scope will be further expanded, the disease will be further aggravated, and eve...

Claims

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Application Information

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IPC IPC(8): E01C7/14E01C11/24C04B28/06
CPCC04B28/06E01C7/14E01C7/147E01C11/24C04B7/02C04B2103/302C04B16/06C04B14/06C04B2103/0068C04B24/2623C04B24/2641C04B24/2676
Inventor 张海宝曾二龙耿刚强郑文鹏张亚明
Owner 西安斯派新材料科技有限公司