White-mud base permeable brick and preparation method thereof

A technology of permeable bricks and white mud, applied in the field of building materials, can solve the problems of aging, emission of greenhouse gases, impact on performance, etc., and achieve the effect of high water permeability and resource saving

Active Publication Date: 2018-11-30
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, common pavement permeable bricks mainly include sintered ceramic permeable bricks, polymer permeable bricks and cement permeable bricks. Sintered ceramic permeable bricks have problems such as high cost, high energy consumption, and greenhouse gas emissions; polymer permeable bricks The cost of bricks is high, and organic substances such as resin materials are added as binders. After a long period of exposure to the sun and rain, they will age, which not only affects performance, but also pollutes the environment; cement-based permeable bricks need to be pressurized, and the process flow more complex

Method used

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  • White-mud base permeable brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 1) Add basalt crushed stones of the following two particle sizes into a concrete mixer and mix for 1 minute to obtain aggregate A; one is basalt crushed stones with a mass of 121.6kg and a particle size of 2.5-4mm, and the other is Basalt gravel with a mass of 182.4kg and a particle size of 4.75-9.5mm;

[0059] Then, 33.8kg of lime mud, 13.5kg of cement, 3.4kg of fly ash, 10.1kg of slag, and 6.8kg of metakaolin were added to aggregate A and mixed for 2 minutes to obtain a solid mixture; 0.81kg of phosphoric acid Add it to 23.6kg of water and mix and stir for 2 minutes to obtain a liquid mixture, then add the liquid mixture to the solid mixture and stir for 3 minutes to obtain the base material for preparing white mud-based permeable bricks;

[0060] (2) Pour the base material obtained in step (1) into a mould, and reserve a height of 8-10mm, place the mold on a vibrating table to vibrate for 2-3 seconds, and vibrate to make a permeable brick base;

[0061] (3) Add rive...

Embodiment 2

[0066] 1) Add basalt crushed stones of the following two particle sizes into a concrete mixer and mix for 1 minute to obtain aggregate A; one is basalt crushed stones with a mass of 182.4 kg and a particle size of 2.36-4.75 mm, and the other It is basalt gravel with a mass of 121.6kg and a particle size of 5-8mm;

[0067] Then, the quality is 33.4kg of lime mud, 15.2kg of cement, 1.8kg of fly ash, 5.5kg of slag, 4.9kg of metakaolin into aggregate A and mixed for 2min to obtain a solid mixture; 0.9kg of Phosphoric acid was added to 18.2kg of water, mixed and stirred for 2 minutes to obtain a liquid mixture, and then the liquid mixture was added to the solid mixture and stirred for 3 minutes to obtain the base material for preparing white mud-based permeable bricks;

[0068] (2) Pour the base material obtained in step (1) into a mould, and reserve a height of 8-10mm, place the mold on a vibrating table to vibrate for 2-3 seconds, and vibrate to make a permeable brick base;

[0...

Embodiment 3

[0074] 1) Add the basalt gravel of the following two particle sizes into a concrete mixer and mix for 1 minute to obtain aggregate A; one is basalt gravel with a mass of 243.2kg and a particle size of 2.36-4mm, and the other is Basalt gravel with a mass of 60.8kg and a particle size of 4.75-9.5mm;

[0075] Then, the quality is 33.2kg of lime mud, 11.1kg of cement, 2.8kg of fly ash, 3.9kg of slag, 4.4kg of metakaolin into aggregate A and mixed for 2min to obtain a solid mixture; 0.7kg of Phosphoric acid was added to 13.9kg of water, mixed and stirred for 2 minutes to obtain a liquid mixture, and then the liquid mixture was added to the solid mixture and stirred for 3 minutes to obtain the base material for preparing white mud-based permeable bricks;

[0076](2) Pour the base material obtained in step (1) into a mould, and reserve a height of 8-10mm, place the mold on a vibrating table to vibrate for 2-3 seconds, and vibrate to make a permeable brick base;

[0077] (3) Add the ...

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Abstract

The invention discloses a white-mud base permeable brick and a preparation method thereof. The white-mud base permeable brick comprises a permeable brick base layer and a permeable brick facing layer,wherein the permeable brick base layer is prepared from aggregates A, a gel material A and water, and the gel material A comprises white mud, cement, coal ash, mineral waste residue and metakaolin; and the permeable brick facing layer comprises aggregates B, a gel material B and water, and the gel material B comprises white mud, cement, coal ash and mineral waste residue. The invention also provides a preparation method of the permeable brick. The permeable brick has the advantages of high strength, high permeability, freeze resistance and low cost.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a white mud-based permeable brick and a preparation method thereof. Background technique [0002] Globally, with the dwindling of bauxite resources and the increasing demand for aluminum materials, the technology of extracting alumina from fly ash has attracted increasing attention. Shenhua Zhuneng Resources Comprehensive Development Co., Ltd. has realized the extraction of alumina from fly ash by using the "one-step acid solution method", which is of great and far-reaching significance to China, a country with a large fly ash emission. The industrialization prospect of aluminum is self-evident. With the increasingly prominent environmental problems of the acid-dissolved aluminum extraction process, the alumina residue (white mud) extracted by the acid-dissolved fly ash is acidic sludge, which is environmentally harmful. Its proper treatment is the technology of acid-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00284C04B2111/00612C04B2201/50C04B14/106C04B18/08C04B18/142C04B18/12C04B14/068
Inventor 贾敏陈雷邹萍王永旺陈东王强段平王洪权杜艳霞浦嵩徐靓
Owner CHINA SHENHUA ENERGY CO LTD
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