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Regenerated permeable concrete material prepared by using all components of construction waste and preparation method thereof

A technology for permeable concrete and construction waste, applied in the field of building materials, can solve the problems of insufficient utilization rate of construction waste powder, and achieve the effects of superior use performance, economical cost savings, and increased effective porosity

Inactive Publication Date: 2017-10-03
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the published patents, most of them use recycled aggregates from construction waste, and the utilization rate of construction waste powder is insufficient, such as patent CN201410292491.1 (method for preparing recycled coarse aggregate and environmentally friendly cement blocks from construction waste) and CN201310480547 .1 (a method of making aggregate from construction waste as raw material), etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] A method for preparing recycled permeable concrete materials by using construction waste with all components, the steps are as follows:

[0026] 1) After the construction waste is crushed and sorted, the construction waste coarse aggregate, construction waste fine powder and construction waste fine aggregate are obtained. The particle size distribution of the construction waste coarse aggregate is: 4.75-9.5mm aggregate accounts for 94% , 9.5-13.2mm aggregates accounted for 6%; the particle size distribution of construction waste fine aggregates is: 2.37mm-4.75mm aggregates accounted for 70%, 1.16-2.37mm aggregates accounted for 20%, less than 1.16mm bone The material accounts for 10%; the fineness standard of the construction waste fine powder material is to pass through a 100-mesh square hole sieve and set aside;

[0027] 2) Tamp the road surface and spread construction waste fine aggregate, quicklime and KO 2 Add water and mix well (mass fraction of raw materials: co...

example 2

[0031] A method for preparing recycled permeable concrete materials by using construction waste with all components, the steps are as follows:

[0032]1) After the construction waste is crushed and sorted, the construction waste coarse aggregate, construction waste fine powder and construction waste fine aggregate are obtained. The particle size distribution of the construction waste coarse aggregate is: 4.75-9.5mm aggregate accounts for 94% , 9.5-13.2mm aggregates accounted for 6%; the particle size distribution of construction waste fine aggregates: 2.37mm-4.75mm aggregates accounted for 76%, 1.16-2.37mm aggregates accounted for 20%, less than 1.16mm bone The material accounts for 4%; the fineness standard of the construction waste fine powder material is to pass through a 100-mesh square hole sieve, and set aside;

[0033] 2) Tamp the road surface and spread construction waste fine aggregate, quicklime and KO 2 Add water and mix uniformly (mass fraction meter: construction...

example 3

[0037] A method for preparing recycled permeable concrete materials by using construction waste with all components, the steps are as follows:

[0038] 1) After the construction waste is crushed and sorted, the construction waste coarse aggregate, construction waste fine powder and construction waste fine aggregate are obtained. The particle size distribution of the construction waste coarse aggregate is: 4.75-9.5mm aggregate accounts for 95% , 9.5-13.2mm aggregates accounted for 5%; the particle size distribution of construction waste fine aggregates: 2.37mm-4.75mm aggregates accounted for 73%, 1.16-2.37mm aggregates accounted for 24%, less than 1.16mm bone The material accounts for 3%; the fineness standard of the construction waste fine powder material is to pass through a 100-mesh square hole sieve and set aside;

[0039] 2) Tamp the road surface and spread construction waste fine aggregate, quicklime and KO 2 Add water and mix uniformly (mass fraction meter: construction...

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Abstract

The invention discloses a regenerated permeable concrete material prepared by using all components of construction waste and a preparation method thereof. The regenerated permeable concrete material is divided into a concrete base and a concrete facing. The method comprises the following steps: performing crushing and separation on construction waste to obtain construction waste coarse aggregate, construction waste fine powder and construction waste fine aggregate, preparing the concrete facing from the construction waste coarse aggregate and construction waste fine powder, and preparing the concrete base from the construction waste fine aggregate. The method can utilize all the components of the construction waste, and the utilization ratio is 100%. The prepared regenerated permeable concrete has the advantages of favorable permeation coefficient, favorable acoustical absorption coefficient and higher compression strength. The permeable system prepared from the regenerated permeable concrete material can satisfy the national standard on construction of sponge cities. The manufacturing cost is greatly lowered. The regenerated permeable concrete can be widely used in municipal construction.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a regenerated permeable concrete material prepared by utilizing construction waste in all components and a preparation method thereof. Background technique [0002] In recent years, the problem of urban waterlogging has continued to emerge. At the same time, judging from the rainwater waterlogging incidents caused by Beijing, Guangzhou, Chengdu, Wuhan and other places in recent years, urban waterlogging has shown a strong upward trend. The Ministry of Housing and Urban-Rural Development conducted a survey on waterlogging in 351 cities in 32 provinces in 2010, showing that since 2008, 213 cities have experienced waterlogging to varying degrees, accounting for 62% of the surveyed cities; waterlogging disasters occur more than three times a year There are 137 cities in China, and it has even expanded to western and northern cities such as Xi'an and Shenyang, which are d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/10C04B38/00C04B38/02E01C11/22C04B111/52C04B18/16
CPCC04B28/006C04B28/10C04B2111/00284C04B2111/00612C04B2111/0075C04B2111/52C04B2201/20E01C11/226C04B18/16C04B22/068C04B38/02C04B38/0074C04B18/08C04B2103/302C04B22/064C04B38/00Y02W30/91
Inventor 蹇守卫余后梁孙孟琪吴世明马保国郅真真
Owner WUHAN UNIV OF TECH
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