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Waterproof anti-permeability aerated brick

A technology of waterproof, impermeable and air-entrained bricks, applied in the field of air-entrained bricks, can solve the problems of impermeability and poor waterproof performance of air-entrained bricks, so as to improve the impermeability and waterproof effect, improve the impermeability and improve the dispersibility. Effect

Pending Publication Date: 2019-10-11
苏成康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a waterproof and impermeable aerated brick in view of the poor impermeability and waterproof performance of commonly used aerated bricks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of composite impermeable base material comprises the steps of:

[0029] (1) At 35~55°C, according to the mass ratio of 1:7~14, take mixed stone with a particle size of 100 mesh and a sodium sulfate solution with a mass fraction of 15% in the reactor and mix it with a magnetic force of 450~800r / min for 30~ After 55 minutes, the stone mixture was obtained. Take the stone mixture and place it in a -40°C freezing pulverizer, using liquid nitrogen as the freezing medium, freeze and pulverize it through a 150-mesh sieve, collect the sieved particles, and place it at 45~55°C with a mass ratio of 8~15:2 : 0.3 Mix the sieved particles, polyvinylpyrrolidone and auxiliary materials, stir and mix at 300~550r / min for 2~4h to obtain a dispersion, add polyvinylpyrrolidone quality 25~40% tetraethyl orthosilicate and mix, keep stirring and react 45~60min, filter to obtain composite modified stone;

[0030](2) According to parts by weight, take 20~30 parts of lins...

Embodiment 1

[0037] Mixed stone: Take palygorskite, basalt and vermiculite according to the mass ratio of 5:1:1 to get the mixed stone.

[0038] Defoamer: Mix polyoxypropylene glyceryl ether and polydimethylsiloxane in a mass ratio of 1:3 to obtain a defoamer.

[0039] Carbomer solution: Mix Carbomer 940, gelatin, and water at 55°C in a mass ratio of 3:0.2:30, stir magnetically at 450 r / min for 30 minutes, and let stand at room temperature for 1 hour to obtain the Carbomer solution.

[0040] Excipients: Sodium dodecylbenzenesulfonate and cetyltrimethylammonium bromide are mixed according to the mass ratio of 4:1 to obtain the excipients.

[0041] Pretreatment of bentonite: Take bentonite, coal gangue, and fly ash in the reaction kettle according to the mass ratio of 15:1:1 and mix them with a magnetic force at 500r / min for 30 minutes to obtain a premix. Take the premix and add it according to the mass ratio of 1:12 Mix and stir the HCl solution with a mass fraction of 12%, let it stand fo...

Embodiment 2

[0053] Mixed stone: Take palygorskite, basalt and vermiculite according to the mass ratio of 5:3:1 to get the mixed stone.

[0054] Defoamer: Mix polyoxypropylene glyceryl ether and polydimethylsiloxane at a mass ratio of 1:6 to obtain a defoamer.

[0055] Carbomer solution: Mix Carbomer 940, gelatin, and water at 70°C in a mass ratio of 3:0.2:50, stir magnetically at 800r / min for 55min, and stand at room temperature for 3h to obtain the Carbomer solution.

[0056] Excipients: Sodium dodecylbenzenesulfonate and cetyltrimethylammonium bromide are mixed according to the mass ratio of 8:1 to obtain the excipients.

[0057] Pretreatment of bentonite: Take bentonite, coal gangue, and fly ash in the reactor according to the mass ratio of 25:1:1, mix them in the reactor, and stir them magnetically at 800r / min for 55 minutes to obtain a premix, and add the premix according to the mass ratio of 1:18 Mix and stir the HCl solution with a mass fraction of 12%, let it stand for 60 minutes...

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Abstract

The invention relates to a waterproof anti-permeability aerated brick, belonging to the field of aerated bricks. Mixed stone is taken as a raw material, the added effective components are agglomerated, so that the anti-permeability and waterproof effect are obviously improved; in the using process, the carbomer molecular structure with negative charges can be well adsorbed on the surface of a cement base material, so that the anti-permeability of the aerated brick system is improved, and cracking and leakage phenomena are avoided; bentonite, coal gangue and fly ash are premixed and soaked in an acid solution to remove impurities and activate effective components in the mixture, so that the modified bentonite can show expansion force in the process of meeting water, and a small amount of water absorption can be achieved to further improve the anti-permeability and waterproof effect; and during mixing, a silane coupling agent is dissolved and released under the action of water, and the combination of the composite modified stone, waterproof materials, ordinary silicon cement and other components is closer, and the hydrophobicity is better, so that the anti-permeability and waterproofperformance of the aerated brick is improved. The waterproof anti-permeability aerated brick solves the problem of poor anti-permeability and waterproof performance of common aerated bricks at present.

Description

technical field [0001] The invention relates to the field of aerated bricks, in particular to a waterproof and anti-seepage aerated brick. Background technique [0002] Aerated bricks are also called aerated concrete blocks, that is, "autoclaved aerated concrete blocks", which are aerated concrete blocks produced by high-temperature autoclaved equipment. It is widely used, mainly used in mechanical workshops and civil buildings as wall materials, filling walls, floor slabs and roof panels and other load-bearing wall materials, as well as non-load-bearing materials and surrounding filling walls. The wall materials used in the construction market in the past are mainly Red bricks (clay bricks). At present, the use of solid clay bricks as filling materials for frame structures is restricted in urban construction, and the use of solid bricks with a strength grade below MU10 in buildings with more than 5 floors is prohibited. Now many advanced areas have completely banned the u...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2111/27C04B2201/50C04B24/08C04B22/00C04B2103/302C04B14/02C04B2103/65C04B14/102C04B14/14C04B14/202
Inventor 苏成康
Owner 苏成康
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