Method for solving saltpetering problem of water permeable brick

A technology of permeable bricks and efflorescence, applied in the field of building materials, can solve problems such as loss of water permeability, and achieve the effects of improving water permeability, preventing efflorescence, and preventing fading

Inactive Publication Date: 2021-01-12
山西大地华基建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is not only a problem encountered by our company in the production of permeable bricks, but also a problem encountered by the entire industry. Some brick factories have made a layer of waterproof membrane on the surface of the bricks in order to sell the bricks. Although it solves the anti-alkali phenomenon, it also loses Permeability of brick

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for solving the efflorescence problem of permeable bricks, including the preparation of special permeable bricks,

[0020] (1) The preparation method of the permeable base is as follows: add 100kg of internal aggregate, 360kg of cement, 5kg of reinforcing agent, and 35kg of cement paste into the mixer, then add 35kg of water, and fully stir to make the permeable base mixture;

[0021] (2) The preparation method of the permeable surface layer is: add 100kg of external aggregate, 350kg of cement, 5kg of reinforcing agent, 1kg of water-repellent agent, 0.5kg of pigment, and 25kg of binder slurry into a mixer, then add 35kg of water, and fully Stir to make a permeable surface layer mixture;

[0022] (3) According to the mass ratio of the permeable surface layer mixture and the permeable base layer mixture being 1:5, place the permeable base layer mixture on the inner bottom of the mold and spread the permeable surface layer mixture on the top of the permeable base ...

Embodiment 2

[0027] A method for solving the efflorescence problem of permeable bricks, including the preparation of special permeable bricks,

[0028] (1) The preparation method of the permeable base is: adding 100kg of internal aggregate, 420kg of cement, 5.6kg of reinforcing agent, and 40kg of cement paste into the mixer, then adding 40kg of water, and fully stirring to make the permeable base mixture;

[0029] (2) The preparation method of the permeable surface layer is: add 100kg of external aggregate, 400kg of cement, 5.3kg of reinforcing agent, 1.5kg of water repellent, 0.55kg of pigment, and 35kg of binder slurry into the mixer, then add 40kg of water, Fully stir to make a permeable surface layer mixture;

[0030] (3) According to the mass ratio of the permeable surface layer mixture and the permeable base layer mixture being 1:5, place the permeable base layer mixture on the inner bottom of the mold and spread the permeable surface layer mixture on the top of the permeable base la...

Embodiment 3

[0035] A method for solving the efflorescence problem of permeable bricks, including the preparation of special permeable bricks,

[0036] (1) The preparation method of the permeable base is as follows: add 100kg of internal aggregate, 500kg of cement, 7.5kg of reinforcing agent, and 55kg of cement paste into the mixer, then add 50kg of water, and fully stir to make the permeable base mix;

[0037] (2) The preparation method of the permeable surface layer is: add 100kg of external aggregate, 500kg of cement, 7.5kg of reinforcing agent, 2.5kg of water repellent, 0.6kg of pigment, and 45kg of binder slurry into the mixer, then add 50kg of water, Fully stir to make a permeable surface layer mixture;

[0038] (3) According to the mass ratio of the permeable surface layer mixture and the permeable base layer mixture being 1:4, place the permeable base layer mixture on the inner bottom of the mold and pave it flat, and spread the water permeable surface layer mixture above the perme...

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Abstract

The invention discloses a method for solving the saltpetering problem of a water permeable brick. A specially-made water permeable brick is included, the specially-made water permeable brick comprisesa water permeable surface layer and a water permeable base layer, and the water permeable surface layer and the water permeable base layer are tightly combined into a whole; the water permeable baselayer comprises internal aggregate, and cement, a reinforcing agent and cementing material slurry which are mixed and uniformly coat the surface of the internal aggregate, wherein the internal aggregate, the cement, the reinforcing agent and and the cementing material slurry are mutually bonded; the cementing material slurry in the water-permeable base layer comprises a hydrophilic binder; and thewater-permeable surface layer comprises an external aggregate, and cement, a water repellent, a pigment mixture, an enhancer and cementing material slurry which are mixed and uniformly coat the surface of the external aggregate, and the cementing material slurry comprises a hydrophilic binder, a hydrophilic resin binder and an inorganic binder. The method for solving the saltpetering problem of the water permeable brick achieves the effects of good water permeability, low cost and capability of solving the saltpetering problem of the brick.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for solving the problem of efflorescence of permeable bricks. Background technique [0002] During the use of permeable bricks, pan-alkaline phenomenon will appear to varying degrees, resulting in the formation of a layer of white salt on the surface of the bricks, which seriously affects the appearance of the bricks. This is because the cement in the raw materials of bricks is mainly composed of silicate, which undergoes hydrolysis reaction when it encounters water, and the generated hydroxide ions combine with metal ions to form hydroxides with low solubility (chemical properties are alkaline). When the temperature rises, the water vapor evaporates, and the hydroxide moves up with the gradual evaporation of the water, and precipitates from the bricks and adheres to the surface of the bricks, resulting in the phenomenon of "efflorescence". This is not only a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/34C04B14/06C04B18/12
CPCC04B14/068C04B18/12C04B28/00C04B28/344C04B2111/00284C04B2111/00612C04B2111/2023C04B2201/50C04B2103/0068C04B2103/65C04B2103/54C04B24/281C04B24/282C04B24/2641C04B7/00Y02W30/91
Inventor 孙三军张彦鹏乔斌张真弟孟秀芳
Owner 山西大地华基建材科技有限公司
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