Method for preparing water-permeable bricks

A permeable brick and water glass technology, which is applied in the field of building material preparation, can solve the problems of poor compressive strength and poor water permeable durability, and achieve the effects of firm use, improved service life, mechanical strength of the channel, and moisture resistance

Inactive Publication Date: 2017-08-08
周荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the disadvantages of traditional permeable bricks with poor compressive strength and poor permeable durability, a preparation method of permeable bricks is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Firstly, select mudflat mud and pass it through a 50-mesh sieve to obtain the sieved mud and dry it naturally to obtain dried mud and mix it with deionized water at a mass ratio of 1:10, then centrifuge at 3500r / min 10 minutes, collect the bottom tidal flat sand, dry at 75°C for 6 hours, and prepare dry tidal flat sand particles; in parts by weight, weigh 45 parts of dry tidal flat sand particles, 6 parts of bentonite, and 3 parts of glass powder and place them in a ball mill jar In the process, ball mill at 350r / min for 3 hours, and pass through a 100 mesh sieve to obtain mixed ball milled powder; then, according to the mass ratio of 1:10, put water glass with a modulus of 1.2 and a mass fraction of 30% and mixed ball milled powder in a beaker, Stirring and mixing at 450r / min for 25 minutes, and then standing at room temperature for 18 hours to prepare a trapped material, then placing the trapped material in a mold, pressing and molding at 35MPa, and then demoulding aft...

example 2

[0022] Firstly, select mudflat mud and pass it through a 50-mesh sieve to obtain the sieved mud and dry it naturally to obtain dried mud and mix it with deionized water at a mass ratio of 1:10, then centrifuge at 3800r / min 13 minutes, collect the bottom tidal flat sand, dry at 78°C for 7 hours, and prepare dry tidal sand granules; in parts by weight, weigh 48 parts of dry tidal sand granules, 7 parts of bentonite, and 4 parts of glass powder and place them in a ball mill In the process, ball mill at 380r / min for 4 hours, pass through a 100-mesh sieve to obtain mixed ball milled powder; then, according to the mass ratio of 1:10, put water glass with a modulus of 1.4 and a mass fraction of 35% and mixed ball milled powder in a beaker, Stirring and mixing at 480r / min for 28min, and then standing at room temperature for 19h to prepare the trapped material, then placing the trapped material in a mold, pressing and molding at 38MPa, and then demoulding after standing for 22h to prepa...

example 3

[0025] Firstly, mud flat mud is selected and passed through a 50-mesh sieve, and the sieved mud is obtained and dried naturally, and the dried mud is obtained and mixed with deionized water according to a mass ratio of 1:10, and then centrifuged at 4000r / min 15 minutes, collect the bottom tidal flat sand, dry at 80°C for 8 hours, and prepare dry tidal sand granules; by weight, weigh 50 parts of dry tidal sand granules, 8 parts of bentonite, and 5 parts of glass powder and place them in a ball mill In the process, ball mill at 400r / min for 5h, and pass through a 100 mesh sieve to obtain the mixed ball milled powder; then, according to the mass ratio of 1:10, put the water glass with a modulus of 1.6 and a mass fraction of 40% and the mixed ball milled powder in a beaker, Stirring and mixing at 500r / min for 30min, and then standing at room temperature for 20h to prepare a trapped material, then placing the trapped material in a mold, pressing and molding at 40MPa, and then demoul...

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Abstract

The invention discloses a method for preparing water-permeable bricks and belongs to the technical field of preparation of building materials. The method comprises the steps of sieving tidal-flat mud, drying the sieved mud in the air, then, mixing the dried mud with deionized water, carrying out centrifugation and separation, collecting tidal-flat sand, drying so as to prepare dried tidal-flat sand granules, adding bentonite and the like into the dried tidal-flat sand granules, carrying out ball milling so as to obtain mixed ball-milled powder, mixing the mixed ball-milled powder with water glass, standing so as to obtain curing pug, carrying out compression molding and demolding so as to obtain a cold-pressed semifinished material, carrying out ball milling on quartz and the like, sieving so as to obtain ball-milled glaze powder, carrying out ultrasonic dispersion treatment with a polyvinyl alcohol solution and the like, then, soaking the cold-pressed semifinished material in the dispersion, taking out the semifinished material, drying, and then, carrying out preheating, heat insulation and calcination in a tunnel kiln, thereby preparing the water-permeable bricks. The method has the beneficial effects that preparation steps of the method are simple, and the obtained water-permeable bricks are good in water-permeable durability, have the coefficient of water permeability of 5.78*10<-2>cm/s to 7.12*10<-2>cm/s and are not easily plugged up by dust; the water-permeable bricks have relatively high compressive strength which reaches 38.25MPa to 45.60MPa.

Description

technical field [0001] The invention relates to a method for preparing a permeable brick, belonging to the technical field of building material preparation. Background technique [0002] Permeable bricks are formed and fired by mixing granular materials and powder materials with water. The granular material is the skeleton and the main material, while the powdery material is the auxiliary material, which is composed of flux, pore forming agent, binder and other components. It has good water permeability and air permeability, which can quickly infiltrate rainwater into the ground, replenish soil water and groundwater, maintain soil moisture, improve the living conditions of urban ground plants and soil microorganisms, and can effectively relieve the flood discharge pressure of urban drainage systems. The function of water seepage, moisturizing and ventilation of bricks has important social benefits and economic value in the construction of the construction industry. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/00C04B35/622C04B35/626C03C8/16C04B41/86
CPCC04B35/00C03C8/16C04B35/62204C04B35/62605C04B41/009C04B41/5022C04B41/86C04B2235/349C04B2235/36C04B2235/96
Inventor 周荣盛开洋王艳芹
Owner 周荣
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