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Rubber concrete for reducing vibration and lowering noise

A technology of rubber concrete, vibration reduction and noise reduction, applied in the field of civil engineering, can solve the problems of large environmental pollution and high cost, and achieve the effect of solving environmental pollution, solving high cost and meeting the requirements of engineering construction

Inactive Publication Date: 2008-11-19
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a vibration-reducing and noise-reducing rubber concrete that can be applied to actual engineering road surfaces. This kind of concrete can turn waste rubber into treasure at the same time, and solve the problems of high cost and environmental pollution when waste rubber is processed.

Method used

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  • Rubber concrete for reducing vibration and lowering noise
  • Rubber concrete for reducing vibration and lowering noise
  • Rubber concrete for reducing vibration and lowering noise

Examples

Experimental program
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Embodiment 1

[0012] According to the "Code for Design of Highway Cement Concrete Pavement" (JTG D40-2002), the concrete design target strength grade is C35. After experimental research, the following proportions meet the requirements, and the raw materials are as follows: ordinary Portland cement is used for cement, label 425; river sand is used for sand, the maximum particle size is 4mm, and the particle size of stones is 5-31.5mm; 5 high-efficiency water reducing agent (water reducing rate of 10% -15%). The rubber is a 15mm rubber block. See Table 1 for specific proportioning examples, and see Table 2 for the allowable deviations of various materials during the configuration process. See Table 3 for the component distribution ratio of the trial mix process of rubber concrete mixed with 15mm particle size rubber blocks. Sand, gravel and rubber block particle size range see figure 1 , the content rate in the figure is the cumulative sieve pass rate of standard sieve analysis.

[0013] ...

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Abstract

This invention relates to a rubber concrete technology of reducing vibration and noise that used in civil engineering, road works. The invention use the largest diameter of 15mm rubber block instead of part aggregate, rubber volume content is 13 ~ 17% of coarse aggregate volume content. Though compare with ordinary concrete of same configuration, this invention has little lower slump, but in the construction process slump can be adjusted by the amount of slurry, make this concrete easy for construction and meet the construction requirements; Also reached reducing vibration and noise effects. In addition, the incorporation of scrap rubber, solve the high cost of handling scrap rubber and pollution problems.

Description

technical field [0001] The invention relates to the technical field of vibration and noise reduction rubber concrete used in civil engineering and road engineering. Background technique [0002] With the development of the national economy, waste rubber products are increasing day by day. According to statistics, my country currently consumes nearly 2 million tons of rubber, and the recycling rate is less than 30%. Waste rubber is not easy to degrade, and it will pollute the environment after landfilling. Incineration will also bring air pollution. How to deal with the increasing waste rubber has become a serious environmental problem. At the same time, if waste rubber cannot be used reasonably, it will also Can cause a kind of waste of effective energy. [0003] The rubber is added into the concrete with a reasonable particle size and a reasonable ratio to replace part of the aggregate in the concrete, and the rubber concrete that meets the requirements of road constructio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B28/04C04B111/72C04B103/30
CPCC04B2111/20C04B28/04Y02W30/91C04B14/068C04B18/22C04B2103/302
Inventor 袁勇郑磊柳献赵桂祥
Owner TONGJI UNIV