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Rubber-cement grouting material applied to semi-flexible pavement

A semi-flexible pavement and cement grouting technology, which is applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of project builders being discouraged and high product prices, and achieve good fluidity, low cost, and improved The effect of premature contraction

Active Publication Date: 2010-05-05
WUHAN MUNICIPAL CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Denmark's Densit company has prepared a semi-flexible pavement material grout, and it has been marketed in Europe and Southeast Asia for large-scale application, but the high price of its products discourages project builders

Method used

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  • Rubber-cement grouting material applied to semi-flexible pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A rubber-cement grouting material for semi-flexible pavement. It is mixed with cement, fly ash, expansion agent, rubber powder, sand, water reducing agent, early strength agent and water. The weight of each component It is: 100 parts of cement, 18 parts of fly ash, 10 parts of expansion agent, 7 parts of rubber powder, 50 parts of sand, 0.6 parts of water reducing agent, 2 parts of early strength agent, and 61 parts of water.

[0043] Said cement is early-strength 42.5 Portland cement; fly ash is first-class fly ash; expansion agent is Wuhan Sanyuan UEA high-efficiency concrete expansion agent; rubber powder is rubber powder after crushing waste automobile tires , The fineness is 80 mesh; the sand is ordinary river sand with a fineness modulus of 1.1; the water reducing agent is Wuhan Haoyuan FDN-1 superplasticizer (powder); the early strength agent is sodium chloride.

[0044] One of the preparation methods of the above-mentioned rubber-cement grouting material applied to s...

Embodiment 2

[0047] A rubber-cement grouting material for semi-flexible pavement. It is mixed with cement, fly ash, expansion agent, rubber powder, sand, water reducing agent, early strength agent and water. The weight of each component It is: 100 parts of cement, 26 parts of fly ash, 11 parts of expansion agent, 6 parts of rubber powder, 50 parts of sand, 0.7 parts of water reducing agent, 2.5 parts of early strength agent, and 65 parts of water.

[0048] The cement is ordinary 42.5 Portland cement; fly ash is secondary fly ash, and the expansion agent is Wuhan Sanyuan UEA high-efficiency concrete expansion agent; rubber powder is rubber powder after crushing waste automobile tires, fine The degree is 80 mesh; the sand is ordinary river sand with a fineness modulus of 1.1; the water reducing agent is Wuhan Haoyuan FDN-1 superplasticizer (powder); the early strength agent is sodium chloride.

[0049] One of the preparation methods of the above-mentioned rubber-cement grouting material for semi-...

Embodiment 3

[0052] A rubber-cement grouting material for semi-flexible pavement. It is mixed with cement, fly ash, expansion agent, rubber powder, sand, water reducing agent, early strength agent and water. The weight of each component It is: 100 parts of cement, 20 parts of fly ash, 8 parts of expansion agent, 5 parts of rubber powder, 48 parts of sand, 0.4 parts of water reducing agent, 1.5 parts of early strength agent, and 58 parts of water.

[0053] Said cement is early-strength 52.5 Portland cement; fly ash is first-class fly ash; expansion agent is Wuhan Sanyuan UEA high-efficiency concrete expansion agent; rubber powder is rubber powder after crushing waste automobile tires , The fineness is 120 mesh; the sand is ordinary river sand with a fineness modulus of 1.1; the water reducing agent is Shanghai Sanrui VIVID-500 polycarboxylic acid powder; the early strength agent is sodium chloride.

[0054] The above-mentioned preparation method of rubber-cement grouting material applied to semi...

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Abstract

The invention relates to a rubber-cement grouting material applied to a semi-flexible pavement, belonging to waste recycling field in the environmental protection field and the application field of highway engineering. The rubber-cement grouting material applied to the semi-flexible pavement is characterized by being formed by mixing the components based on parts by weight: 100 parts of cement, 10-50 parts of pulverized fuel ash, 5-30 parts of expanding agent, 1-30 parts of rubber powder, 10-50 parts of sand, 0.1-5 parts of water reducing agent, 0.1-5 parts of early strength agent and 40-70 parts of water. The rubber-cement grouting material has high fluidity and anti-cracking property, lower contraction and higher early strength, and can meet the groutability and pavement performance of the semi-flexible pavement material.

Description

Technical field [0001] The invention relates to a rubber-cement grouting material applied to a semi-flexible pavement, and belongs to the waste recycling field in the environmental protection field and the highway engineering application field. Background technique [0002] At present, with the massive new construction of national highways and urban roads and the renovation of old cement pavements, various damages have occurred after many pavements are completed, which seriously wastes resources. Therefore, a new type of road surface of semi-flexible road surface has emerged. Semi-flexible pavement is a kind of high-performance pavement that is more flexible than cement concrete pavement and higher than asphalt pavement rigidity formed by pouring cement mortar with special properties into large void asphalt mixture. Semi-flexible pavement can be used for heavy-duty roads, tunnel pavements, bridge deck paving, seaports and port container terminals, sea, land and air military base...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/04C04B28/08C04B18/08C04B14/06C04B18/22
CPCC04B2111/70C04B2111/34C04B2111/50C04B2103/302C04B28/08C04B2111/0075C04B28/04C04B28/021C04B2111/343Y02W30/91C04B14/068C04B18/08C04B18/22C04B22/008C04B2103/14C04B7/323C04B22/124C04B22/147C04B24/26C04B24/226C04B24/2641C04B24/2647
Inventor 胡曙光丁庆军黄绍龙黄冲黄修林付军吕林女王发洲何永佳
Owner WUHAN MUNICIPAL CONSTR GROUP
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