A method for preparing environmentally friendly permeable bricks from recycled materials from construction waste

A technology for construction waste and seepage bricks, applied in sustainable waste treatment, solid waste management, climate sustainability, etc. Problems such as large consumption of water and water reducing agent, high water absorption of recycled materials, etc., to enhance water reducing effect, increase water reducing dosage, and promote adsorption effect

Active Publication Date: 2021-06-22
广东怡兴食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The preparation of the existing permeable brick aggregate is to weigh all the materials according to the mass ratio and mix them at one time. The preparation method of the aggregate is simple, but due to the high water absorption and high surface ash content of the recycled materials prepared from construction waste, The preparation method of one-time mixing cannot promote the adsorption capacity of the alkaline water agent and the cement surface and the adhesion capacity of the cementitious material and the wetting material, resulting in excessive consumption of water and water reducing agent, and the strength of the prepared permeable brick is low

Method used

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  • A method for preparing environmentally friendly permeable bricks from recycled materials from construction waste

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Experimental program
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Effect test

Embodiment 1

[0029] A method for preparing environmentally friendly permeable bricks from recycled construction waste materials, comprising the following steps:

[0030] (1) Preparation of cementitious base material and wetting base material: Stir 15 parts of cement and 0.5 part of water reducing agent evenly, add 5 parts of fly ash and mix to prepare cementitious base material; mix 40 parts of recycled fine aggregate and Stir 30 parts of recycled sand evenly, add 5 parts of water, and mix to obtain a wet base material;

[0031] (2) Prepare the concrete base material: mix the gel base material and the wet base material in step (1), stir for 15 minutes, add 8 parts of water, and stir for another 20 minutes to obtain the concrete base material, which is set aside;

[0032] (3) Preparation of cementitious surface material and wetting surface material: Stir 20 parts of cement and 0.8 parts of water reducer evenly, add 7 parts of fly ash and mix to obtain a gelled surface material; mix 2 parts ...

Embodiment 2

[0037] A method for preparing environmentally friendly permeable bricks from recycled construction waste materials, comprising the following steps:

[0038] (1) Preparation of cementitious base material and wetting base material: Mix 10 parts of cement and 0.5 part of water reducer evenly, add 3 parts of fly ash to mix to prepare cementitious base material; mix 50 parts of recycled fine aggregate and Stir 30 parts of recycled sand evenly, add 5 parts of water, and mix to obtain a wet base material;

[0039] (2) Prepare the concrete base material: mix the gel base material and the wet base material in step (1), stir for 10 minutes, add 10 parts of water, and stir for another 20 minutes to obtain the concrete base material, which is set aside;

[0040] (3) Preparation of cementitious surface material and wetting surface material: Stir 15 parts of cement and 0.8 parts of water reducer evenly, add 5 parts of fly ash and mix to obtain a gelled surface material; mix 1.5 parts of min...

Embodiment 3

[0045] A method for preparing environmentally friendly permeable bricks from recycled construction waste materials, comprising the following steps:

[0046] (1) Preparation of cementitious base material and wetting base material: Stir 20 parts of cement and 0.8 parts of water reducer evenly, add 8 parts of fly ash and mix to prepare cementitious base material; mix 60 parts of recycled fine aggregate and Stir 30 parts of recycled sand evenly, add 5 parts of water, and mix to obtain a wet base material;

[0047] (2) Prepare the concrete base material: mix the gel base material and the wet base material in step (1), stir for 20 minutes, add 10 parts of water, and stir for another 30 minutes to obtain the concrete base material, which is set aside;

[0048] (3) Preparation of cementitious surface material and wetting surface material: Stir 30 parts of cement and 1 part of water reducer evenly, add 10 parts of fly ash and mix to obtain a gelled surface material; mix 3 parts of mine...

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Abstract

The invention relates to a method for preparing environmentally friendly permeable bricks from recycled construction waste materials, comprising: preparing a gelling base material and wetting the base material, preparing a concrete base material, preparing a gelling surface material and wetting the surface material, and preparing a concrete surface layer Material, molding, steam curing and curing. Through the mixing of water reducing agent and cement, the amount of water reducing agent adsorbed on the surface of cement is increased, the water reducing effect is enhanced, and the amount of water reducing agent and water is reduced; fly ash is added to cement mixed with water reducing agent to make pulverized coal The ash and cement are fully mixed evenly to promote the adsorption of fly ash on the surface of the cement and reduce the amount of fly ash; in addition, through the two processes of steam curing and curing, the hydration of the cement and the Ca(OH) in the hydration cement are promoted. 2 The effective reaction with the active oxide in the fly ash improves the strength of the permeable brick, and the preparation method is simple and the raw materials are easy to obtain.

Description

technical field [0001] The invention relates to a method for preparing water seepage bricks, in particular to a method for preparing environmentally friendly water seepage bricks from recycled construction waste materials. Background technique [0002] With the rapid development of urbanization in my country, on the one hand, there are more and more construction wastes. In order to quickly and cost-effectively dispose of large quantities of construction waste, builders stack and bury waste solid materials randomly, occupying land resources and reducing soil pollution. It also pollutes the surrounding surface water and groundwater and affects the ecological environment. In recent years, some more developed cities have begun to pay attention to the adverse impact of construction waste, and have recycled and reused construction waste. [0003] On the other hand, more and more buildings cover the urban ground, urban precipitation cannot penetrate into the ground, and groundwater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/16
CPCC04B18/16C04B28/00C04B2111/00284C04B2111/00612C04B2103/302C04B18/08C04B22/002C04B2103/54C04B2103/0068Y02W30/91
Inventor 沈小葵
Owner 广东怡兴食品有限公司
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