Preparation method of pressure-resistant aerated brick

An air-entrained brick and a technology for preparation steps are applied in the field of preparation of compression-resistant air-entrained bricks, which can solve problems such as poor compression resistance of air-entrained bricks, and achieve the effects of reducing product quality, improving sound insulation performance, and improving mechanical properties.

Active Publication Date: 2018-06-01
嵊州市平隆新型墙体建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: Aiming at the problem of poor compression resistance of traditional aerated bricks, a preparation method of compression-resistant aerated bricks is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Put the zeolite into a pulverizer, crush through a 200-mesh sieve to obtain zeolite powder, move the zeolite powder into a calciner, and perform high-temperature aerobic calcination at a temperature of 800°C for 75 minutes to obtain a pretreated zeolite powder, and move the porous ceramic into a pulverized Machine pulverization, pass through 180 mesh sieve, porous ceramic powder, mix the pretreated zeolite powder and porous ceramic powder in the mixer according to the mass ratio of 4:1, and stir for 30min under the condition of rotating speed of 300r / min to obtain the mixed powder; Mix the mixed powder and saturated sodium carbonate solution in a beaker at a mass ratio of 1:10. After mixing and stirring for 20 minutes at a temperature of 60°C and a rotation speed of 380r / min, cool the material in the beaker to 20°C and filter. To obtain a filter cake, move the filter cake into a drying oven, and dry it at a constant temperature for 35 minutes at a temperature of 80°C to ...

example 2

[0025] Mix vitrified microbeads with 35% sodium hydroxide solution at a mass ratio of 1:5, soak at room temperature for 45 minutes, and filter to obtain pretreated vitrified microbeads. The phenolic resin is mixed according to the mass ratio of 1:6, and a silane coupling agent of 0.3 times the mass of the pretreated vitrified microbeads is added to the mixture of the pretreated vitrified microbeads and the phenolic resin. After stirring and mixing for 80 minutes under the condition of 1 min, filter to obtain modified vitrified microbeads; mix the modified vitrified microbeads and paraffin wax at a mass ratio of 1:8, and add to the mixture of modified vitrified microbeads and paraffin wax The curing agent with 0.12 times the mass of the modified vitrified microbeads and the alumina with 0.3 times the mass of the modified vitrified microbeads were stirred and mixed for 40 minutes at a temperature of 70°C and a rotational speed of 400r / min to obtain vitrified microbeads The mixtu...

example 3

[0027]Put the zeolite into a pulverizer, crush through a 200-mesh sieve to obtain zeolite powder, move the zeolite powder into a calciner, and perform high-temperature aerobic calcination at a temperature of 800°C for 75 minutes to obtain a pretreated zeolite powder, and move the porous ceramic into a pulverized Machine pulverization, pass through 180 mesh sieve, porous ceramic powder, mix the pretreated zeolite powder and porous ceramic powder in the mixer according to the mass ratio of 4:1, and stir for 30min under the condition of rotating speed of 300r / min to obtain the mixed powder; Mix the mixed powder and saturated sodium carbonate solution in a beaker at a mass ratio of 1:10. After mixing and stirring for 20 minutes at a temperature of 60°C and a rotation speed of 380r / min, cool the material in the beaker to 20°C and filter. To obtain a filter cake, move the filter cake into a drying oven, and dry it at a constant temperature for 35 minutes at a temperature of 80°C to o...

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Abstract

The invention discloses a preparation method of a pressure-resistant aerated brick, and belongs to the technical field of building materials. The preparation method comprises the following steps: sequentially weighing fluorite slag powder, cement, gypsum, modified mixed powder, pretreated vitrified micro beads, mixed nano powder, aluminum powder, sepiolite, graphite oxide, talcum powder, calcium stearate, sodium stearate, a dispersing agent and water according to weight parts, calcining the fluorite slag powder to obtain pretreated fluorite slag powder, mixing the pretreated fluorite slag powder with the gypsum, adding water, carrying out stirring and mixing to obtain pretreated mixed slurry, mixing the pretreated mixed slurry with the cement, adding the modified mixed powder, the pretreated vitrified micro beads, the mixed nano powder, the aluminum powder, the sepiolite, the graphite oxide, the talcum powder, the calcium stearate, the sodium stearate and the dispersing agent, carryingout stirring and mixing to obtain mixed slurry, carrying out moulding by casting on the mixed slurry, carrying out pre-curing and demoulding to obtain a blank, and carrying out autoclaved curing on the blank to obtain the pressure-resistant aerated brick. The pressure-resistant aerated brick obtained by the preparation method provided by the invention has excellent pressure resistance.

Description

technical field [0001] The invention discloses a preparation method of a pressure-resistant aerated brick, which belongs to the technical field of building materials. Background technique [0002] Aerated bricks are "autoclaved aerated concrete blocks", referred to as aerated bricks, which are aerated concrete blocks produced by high-temperature autoclaved equipment. "Aerated brick" can be understood as a simplified or a general name. The range of products it covers should be larger, that is, bricks produced by various other processes including autoclaving. [0003] The advantages of aerated bricks are: 1. Light weight. The general weight of aerated concrete blocks is 500-700kg / m 3 , which is only equivalent to 1 / 4 to 1 / 5 of clay bricks and 1 / 5 of ordinary concrete, and is a lighter type of concrete. Compared with ordinary brick concrete structure buildings, the self-weight is reduced by more than 40%. 2. Good thermal insulation performance. The thermal conductivit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/00C04B38/08C04B20/02C04B111/40
CPCC04B20/023C04B28/14C04B38/0025C04B38/08C04B2111/40C04B2201/50C04B18/141C04B7/00C04B14/22C04B22/04C04B14/42C04B14/024C04B24/08C04B2103/408C04B14/047C04B18/023
Inventor 蒋文明徐珉张淼
Owner 嵊州市平隆新型墙体建材股份有限公司
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