Water permeable brick prepared from alkali residues and construction waste and preparation method thereof

A technology of construction waste and permeable bricks, which is applied in cement production, ceramic products, and other household appliances, etc., can solve the problems of high production cost of ecological ceramic permeable bricks, consumption of construction waste, and intensified greenhouse effect, etc., to achieve low production costs and low The effect of heat of hydration and simple process

Inactive Publication Date: 2017-01-04
ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production cost of ecological ceramic permeable bricks prepared by this method is high; ecological ceramic permeable bricks are calcined at high temper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] A permeable brick with alkali slag construction waste is composed of the following parts by weight: 100 parts of alkali slag, 500 parts of construction waste, 5 parts of silica fume, 10 parts of cement, 5 parts of alkaline activator, and 25 parts of water. The specific surface area of ​​the alkali slag≥350cm 2 / g. The alkaline activator is made by mixing lime, sodium water glass and sodium sulfate in a mass ratio of 1:1:1. The construction waste is made by mixing waste concrete, waste bricks, waste marble and waste mortar according to a mass ratio of 1:1:1:1. The construction waste includes the following components by weight percentage: 0.15mm-0.60mm construction waste 15%, 0.60mm-4.75mm construction waste 30%, and 4.75mm-8mm construction waste 55%.

[0022] The preparation method of the above-mentioned alkali slag construction waste permeable bricks is carried out according to the following steps:

[0023] (1) The construction waste is crushed to a parti...

Example Embodiment

[0028] Example 2

[0029] A permeable brick with alkali slag construction waste is composed of the following parts by weight: 100 parts of alkali slag, 200 parts of construction waste, 2 parts of silica fume, 5 parts of cement, 2 parts of alkaline activator, and 18 parts of water. The specific surface area of ​​the alkali slag≥350cm 2 / g. The alkaline activator is made by mixing lime, sodium water glass, and sodium sulfate in a mass ratio of 1:1:1. The construction waste is made by mixing waste concrete, waste bricks, waste marble and waste mortar according to a mass ratio of 1:1:1:1. The construction waste includes the following components by weight percentage: 0.15mm-0.60mm construction waste 25%, 0.60mm-4.75mm construction waste 15%, and 4.75mm-8mm construction waste 60%.

[0030] The preparation method of the above-mentioned alkali slag construction waste permeable bricks is carried out according to the following steps:

[0031] (1) The construction waste is crushed to a parti...

Example Embodiment

[0036] Example 3

[0037] A permeable brick for alkali slag construction waste is composed of the following parts by weight: 100 parts of alkali slag, 800 parts of construction waste, 8 parts of silica fume, 15 parts of cement, 7.5 parts of alkaline activator, and 40 parts of water. The specific surface area of ​​the alkali slag≥350cm 2 / g. The alkaline activator is made by mixing lime, sodium water glass and sodium sulfate in a mass ratio of 1:1:1. The construction waste is made by mixing waste concrete, waste bricks, waste marble and waste mortar in a mass ratio of 1:1:1:1. The construction waste includes the following components by weight percentage: 0.15mm-0.60mm construction waste 10%, 0.60mm-4.75mm construction waste 20%, and 4.75mm-8mm construction waste 70%.

[0038] The preparation method of the above-mentioned alkali slag construction waste permeable bricks is carried out according to the following steps:

[0039] (1) Crush the construction waste through a large hammer o...

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Abstract

The invention discloses a water permeable brick prepared from alkali-residues and construction waste and a preparation method thereof, belonging to the technical field of construction material preparation. The water permeable brick is prepared from the following substances in parts by weight: 100 parts of alkali residues, 200-800 parts of construction waste, 2-8 parts of silica fume, 5-15 parts of cement, 2-7.5 parts of alkali activator and 18-40 parts of water. The water permeable brick is prepared from industrial waste residues and construction waste, and has high solid waste utilization and low production cost; the molding method adopts press molding, is simple in process, does not need high-temperature calcining, and has the advantages of low carbon, environmental friendliness and low energy consumption; and the gel material is alkali-activated alkali residue gel material to prepare the water permeable brick having the advantages of high strength, high water permeability, low hydration heat, carbonization resistance, good durability and the like.

Description

technical field [0001] The invention belongs to the technical field of building material preparation, and in particular relates to an alkali slag construction waste permeable brick and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy and the vigorous development of urbanization, the original green space was replaced by large-scale ground pavement, and the formed "urban desert" greatly increased the impermeable area, making it impossible for urban rainwater to return to nature. As a result, urban The groundwater is greatly reduced, and there is a danger of urban buildings sinking; and when the city encounters a sudden heavy rain, the rainwater on the road surface cannot leak quickly, causing a great burden on urban drainage facilities and easily causing urban waterlogging. At the same time, its large area of ​​paved road weakens the breathing function of the city, which will cause the "heat island effect", reduce th...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B28/04C04B7/24C04B18/04C04B18/16
CPCC04B7/243C04B28/04C04B2201/52C04B18/16C04B18/146C04B18/04C04B22/064C04B22/08C04B22/147C04B38/00Y02P40/10Y02W30/91
Inventor 杨卓舒张军华段晓马春羽史红彬蔡世楷
Owner ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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