Semi-flexible anti-rut pavement material and preparation method thereof

A pavement material and anti-rutting technology, applied in the field of road rutting disposal, can solve problems such as insufficient crack resistance, and achieve the effects of reducing the risk of cracking, longer life, and better volume stability

Active Publication Date: 2015-05-20
JIANGSU SOBUTE NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of insufficient crack resistance in the semi-flexible pavement materials in the prior art, and provide a new type of semi-flexible anti-rutting pavement material, which has high rutting resistance, rigidity and flexibility, no joints, no cracks Features such as less, and can be constructed at room temperature, low-carbon and environmentally friendly, suitable for road rutting disposal

Method used

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  • Semi-flexible anti-rut pavement material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of large void cement-based mixture: firstly mix 42.5 grade sulphoaluminate cement, coarse aggregate, fine aggregate, water and powdered polycarboxylate superplasticizer in a weight ratio of 1:4:0.4:0.1:0.003 Mix and stir evenly, pave the mixed mixture with a thickness of 5cm, control the porosity of the porous mixture at about 27%, and maintain it for 4 hours before use.

[0025] Preparation of flexible grouting material: First, mix liquid epoxy resin and water-based epoxy curing agent in a weight ratio of 1:1, and keep stirring until the mixture is uniform to obtain a water-based epoxy resin emulsion for use; then mix each component The materials are weighed according to the following parts by weight and put into the mixing pot: 1 part of 42.5 grade Portland cement, 0.65 part of slow-cracking and fast-setting modified emulsified asphalt with a solid content of 50%, 0.35 part of water-based epoxy resin emulsion , 0 part of waste tire rubber powder, 0.0025 pa...

Embodiment 2

[0028] Preparation of large void cement-based mixture: firstly mix 42.5 grade sulphoaluminate cement, coarse aggregate, fine aggregate, water and powdered polycarboxylate superplasticizer in a weight ratio of 1:6:0.7:0.3:0 Mix and stir evenly, pave the mixed mixture, the thickness of the pavement is 12cm, control the porosity of the porous mixture at about 35%, and keep it for 4 hours before use.

[0029] Preparation of flexible grouting material: First, mix liquid epoxy resin and water-based epoxy curing agent at a weight ratio of 1:1.5, and keep stirring until the mixture is uniform to obtain a water-based epoxy resin emulsion for use; then mix each component The materials are weighed according to the following parts by weight and put into the mixing pot: 1 part of 42.5 grade Portland cement, 1 part of slow-cracking and fast-setting modified emulsified asphalt with a solid content of 65%, 0.1 part of water-based epoxy resin emulsion , 0.02 part of waste tire rubber powder, 0...

Embodiment 3

[0032] Preparation of large void cement-based mixture: first, 42.5 grade sulphoaluminate cement, coarse aggregate, fine aggregate, water and powdery naphthalene-based water reducer are carried out in a weight ratio of 1:5:1:0.15:0.006 Mix and stir evenly, pave the well-mixed mixture, the thickness of the pavement is 7cm, control the porosity of the porous mixture at about 31%, and keep it for 4 hours before use.

[0033] Preparation of flexible grouting material: First, mix liquid epoxy resin and water-based epoxy curing agent in a weight ratio of 1:1.2, and keep stirring until the mixture is uniform to obtain a water-based epoxy resin emulsion for use; then mix each component The materials were weighed according to the following parts by weight and put into the mixing pot: 1 part of 42.5 grade sulfoaluminate cement, 0.8 part of medium-cracking fast-setting modified emulsified asphalt with a solid content of 65%, 0.25 part of water-based epoxy resin emulsion 0.03 part of waste...

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Abstract

The invention relates to a semi-flexible anti-rut pavement material which comprises the following components in percentage by weight: 65-88% of big-void cement-base mixture and 12-35% of flexible grouting material. The big-void cement-base mixture comprises 1 part of cement, 4-6 parts of coarse aggregate, 0.4-1.0 part of fine aggregate, 0.1-0.3 part of water and 0-0.006 part of water reducing agent. The flexible grouting material comprises 1 part of cement, 0.65-1 part of modified emulsified asphalt, 0.1-0.35 part of water-based epoxy resin emulsion, 0-0.03 part of ground tire, 0.0025-0.007 part of water reducing agent, 0.05-0.2 part of expanding agent and 0.05-0.15 part of water. The semi-flexible anti-rut pavement material has the characteristics of high rut resistance, favorable flexibility and toughness, no seam, fewer cracks, low carbon, environmental protection and the like, can be constructed at room temperature, and is suitable for road rut treatment.

Description

technical field [0001] The invention relates to a semi-flexible anti-rutting pavement material, which belongs to the technical field of road rutting treatment. Background technique [0002] The traditional cement concrete pavement has good bearing capacity, but its flexibility is poor, and it is prone to plate cracking, mud pumping and other diseases, and needs to be equipped with expansion joints, which affects driving comfort; although the asphalt concrete pavement has good flexibility, it is prone to damage at high temperatures. Rutting disease affects driving safety and comfort. In order to overcome the shortcomings of the above two traditional pavements, a semi-flexible anti-rutting pavement was produced. [0003] The current semi-flexible pavement is mainly composed of flexible large-void asphalt mixture skeleton and rigid cement-based grouting material. This semi-flexible pavement has proven to have a high load-carrying capacity and is able to solve the problems of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B28/08C04B28/06
Inventor 邓成洪锦祥黄冲张德育朱晓斌熊子佳蔡广楠陈香林俊涛耿磊张苏龙魏唐中
Owner JIANGSU SOBUTE NEW MATERIALS
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