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Water permeable brick based on graphene and solid wastes and preparation method thereof

A graphene and waste technology, applied in the field of permeable bricks and its preparation, can solve the problems of low comprehensive utilization efficiency of urban sludge, high energy demand, complex process, etc., to prevent environmental biological poisoning and structural damage, and to achieve good water permeability , the effect of simple operation

Active Publication Date: 2018-01-19
GUANGXI XUTENG INDUSTRIAL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To a certain extent, the problem of poor sludge strength has been solved, but the wear resistance and toughness of the permeable brick still need to be improved, and the sludge needs to be dried and pulverized for use, the process is complicated, and the energy demand is high
The Chinese patent with the application number 200810106946.0 discloses a method for producing sintered permeable bricks using urban sludge and wet-discharged fly ash. The permeable bricks are prepared using urban sludge and fly ash as raw materials, which effectively solves the problem of the comprehensive utilization efficiency of urban sludge. Low pollution, environmental pollution, and the use of fly ash improves the mechanical properties of urban sludge fired bricks, but the wear resistance, toughness and water permeability of the permeable bricks still need to be improved

Method used

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  • Water permeable brick based on graphene and solid wastes and preparation method thereof
  • Water permeable brick based on graphene and solid wastes and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A permeable brick based on graphene and solid waste, made of the following components by weight percentage:

[0042] 15% of urban sludge, 10% of urban spoil, 15% of construction waste, 15% of fly ash, 5% of pore-forming agent, 10% of non-metallic tailings, 10% of graphene, 5% of bentonite, 10% of water glass, Pore-forming agent 4%, hydroxypropyl methylcellulose 1%.

[0043] The non-metallic tailings are granite tailings; the pore-forming agent is diatomite.

[0044] The preparation method of the permeable brick of described graphene and solid waste, comprises the following steps:

[0045] S1. Prepare raw materials:

[0046] 1) Weigh the materials according to the mass percentage of each raw material, add the urban sludge into medical stone equivalent to 10% of the sludge weight, and 2% sodium hypochlorite, mix and stir evenly, and store for 3 to 7 days to make the moisture content up to 60%.

[0047] 2) Crushing and granulating urban spoil and construction waste, th...

Embodiment 2

[0056] A permeable brick based on graphene and solid waste, made of the following components by weight percentage:

[0057] 18% of urban sludge, 15% of urban spoil, 15% of construction waste, 15% of fly ash, 8% of non-metallic tailings, 7% of graphene, 5% of bentonite, 10% of water glass, 4% of pore-forming agent, Hydroxypropyl methylcellulose 1%, colorant 2%.

[0058] The non-metallic tailings are feldspar tailings. The pore-forming agent is rice husk.

[0059] The preparation method is the same as in Example 1.

Embodiment 3

[0061] A permeable brick based on graphene and solid waste, made of the following components by weight percentage:

[0062] 20% of urban sludge, 10% of urban spoil, 10% of construction waste, 15% of fly ash, 5% of non-metallic tailings, 5% of graphene, 5% of bentonite, 20% of water glass, 4% of pore-forming agent, Hydroxypropyl methylcellulose 1%, colorant 5%

[0063] The non-metallic tailings are diabase tailings and basalt tailings. The pore-forming agent is polystyrene microbeads and calcined zeolite.

[0064] The preparation method is the same as in Example 1.

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Abstract

The invention provides a water permeable brick based on graphene and solid wastes. The water permeable brick is prepared from municipal sludge, municipal waste soil, construction waste, coal ash, nonmetal tailings, graphene, bentonite, sodium silicate, pore forming substance and hydroxypropyl methyl cellulose. The water permeable brick with excellent performances is acquired in the manner of utilizing the construction waste, coal ash, graphene and nonmetal tailings as aggregates and utilizing the municipal sludge, municipal waste soil, bentonite and sodium silicate to bond the aggregate grainsand thus is endowed with the performances, such as, high strength, high temperature resistance and high wearing resistance. A large amount of municipal sludge, municipal waste soil and construction waste are effectively utilized and the recycling of the coal ash and the nonmetal tailing waste resources is realized, so that the environment protection is benefited, the industrial and regional economy and the development of urbanization are promoted.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a permeable brick based on graphene and solid waste and a preparation method thereof. Background technique [0002] In the process of long-term urbanization in my country, large-scale impermeable ground (concrete, cement ground) has replaced the original forests, green spaces and fields, resulting in a large increase in impermeable areas, making urban rainwater unable to enter the soil smoothly, resulting in groundwater replenishment Conservation is greatly reduced, and peak flow is greatly increased. In many cities, when there is a heavy rain, the rainwater on the road surface cannot seep quickly. When the drainage facilities are not smooth, it is easy to cause urban waterlogging. At the same time, ground hardening weakens the breathing function of the urban environment, causing the heat island effect, increasing dust and noise, deteriorating the urban microclimate, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B33/132C04B33/135C04B38/06C04B38/08
CPCY02P40/60
Inventor 黄聿新黄昭烨
Owner GUANGXI XUTENG INDUSTRIAL GROUP CO LTD
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