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Method for preparing water-permeable pavement material from construction waste

A technology of permeable pavement and construction waste, applied in the field of comprehensive utilization of solid waste, can solve the problems of low added value of products and limited market capacity, and achieve the effects of improving comprehensive utilization rate, good market prospect and high water permeability

Inactive Publication Date: 2018-10-09
柳州紫荆生态工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the market capacity of these products is limited, and the added value of the products is low. The use of construction waste to produce permeable materials can meet the urgent need of permeable pavement materials for my country's "sponge city", and can obtain better product profits, which is conducive to the scale of comprehensive utilization of construction waste. Expand and improve the utilization rate of construction waste

Method used

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  • Method for preparing water-permeable pavement material from construction waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Include the following steps:

[0032] Step 1. First, sort the construction waste. Use a multi-stage construction waste sorting machine to discharge and collect various materials from multiple outlets to remove plastic, metal and wood in the construction waste, and only keep the bricks. tile, concrete solid waste;

[0033] Step 2. The solid waste is crushed by a crusher, and then screened twice through screens of different specifications. After screening, large particles with a particle size of 1-5 mm and small particles with a particle size of 1 mm or less are obtained;

[0034] Step 3, the small particle material and the alkalizing agent are mixed according to the ratio of 100:5, and then ball milled for 12 hours in a ball mill to obtain the activated material, and the alkalizing agent is sodium hydroxide;

[0035] Step 4, then mix the large particle material, the activation material, the ordinary Portland cement of the label 42.5 and water according to the weight rat...

Embodiment 2

[0039] Include the following steps:

[0040] Step 1. First, sort the construction waste. Use a multi-stage construction waste sorting machine to discharge and collect various materials from multiple outlets to remove plastic, metal and wood in the construction waste, and only keep the bricks. tile, concrete solid waste;

[0041] Step 2. The solid waste is crushed by a crusher, and then screened twice through screens of different specifications. After screening, large particles with a particle size of 1-5mm and small particles with a particle size of less than 1mm are obtained;

[0042] Step 3, the small particle material and the alkalizing agent are mixed according to the ratio of 100:8, and then ball milled for 9 hours to obtain the activated material, and the alkalizing agent is sodium hydroxide and sodium silicate;

[0043] Step 4, then mix the large particle material, the activation material, the ordinary Portland cement of the label 42.5 and water according to the weight...

Embodiment 3

[0047] Include the following steps:

[0048] Step 1. First, sort the construction waste. Use a multi-stage construction waste sorting machine to discharge and collect various materials from multiple outlets to remove plastic, metal and wood in the construction waste, and only keep the bricks. tile, concrete solid waste;

[0049] Step 2. The solid waste is crushed by a crusher, and then screened twice through screens of different specifications. After screening, large particles with a particle size of 1-5 mm and small particles with a particle size of 1 mm or less are obtained;

[0050] Step 3, the small particle material and the alkalizing agent are mixed according to the ratio of 100:10, and then ball milled for 6 hours in a ball mill to obtain the activated material. The alkalizing agent is sodium hydroxide and sodium silicate;

[0051] Step 4, then mix the large particle material, the activation material, the ordinary Portland cement of the label 52.5 and water according t...

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Abstract

The invention relates to the technical field of solid waste comprehensive utilization and discloses a method for preparing a water-permeable pavement material from construction waste. The method includes: step one, sorting the construction waste to remove plastic, metal, wood and the like from the construction waste, and only keeping solid waste such as bricks, tiles and concrete; step two, crushing the solid waste by a crushing machine, screening to obtain large particles in particle size of 1-5mm and small particles in particle size smaller than 1mm; step three, mixing the small particles and an alkalizer according to a ratio of 100:(5-10), adopting a ball mill for ball milling for 6-12h to obtain an activated material. By making full use of the bricks, the tiles and the concrete in theconstruction waste, the method has the advantage of high solid waste utilization rate. The water-permeable pavement material produced according to the method is high in strength, water permeability and solid waste content, low in cost, high in additional value, promising in market prospect and beneficial to further increase of the comprehensive utilization rate of the construction waste.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of solid waste, and in particular relates to a method for making permeable paving materials from construction waste. Background technique [0002] With the continuous acceleration of urbanization, the generation and discharge of construction waste in cities is also increasing rapidly. While enjoying urban civilization, people are also suffering from the troubles caused by urban waste, among which construction waste occupies a considerable proportion, accounting for about 30%-40% of the total waste, so how to deal with and utilize more and more Construction waste has become an important issue faced by government departments at all levels and construction waste disposal units. [0003] Many wastes in construction waste can be reused as renewable resources after being sorted, removed or crushed. At present, waste construction concrete and waste masonry are mainly used to produce co...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/02
CPCC04B28/04C04B20/026C04B2111/00284C04B2201/50C04B18/16C04B20/023
Inventor 易汉平张弦严学军梁才王立彬
Owner 柳州紫荆生态工程科技有限公司
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