Building material and preparation method thereof, and aerated concrete block and application thereof

A technology for building materials and raw materials, applied in the fields of aerated concrete blocks, applications, building materials and their preparation, can solve the problems of inability to improve compressive strength, and achieve high compressive strength, reduce pollution, and improve compressive strength. Effect

Inactive Publication Date: 2021-01-12
杨红英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a building material to solve the problem that the existing air-entrained concrete blocks produced by phosphogypsum cannot improve the compressive strength on the basis of keeping the dry density of the material stable.

Method used

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  • Building material and preparation method thereof, and aerated concrete block and application thereof
  • Building material and preparation method thereof, and aerated concrete block and application thereof
  • Building material and preparation method thereof, and aerated concrete block and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of air-entrained concrete block, concrete preparation method is as follows (referring to figure 1 shown):

[0031] 1) Weigh phosphogypsum and add water to mix evenly, then place it in a high-pressure reactor, and then feed liquid nitrogen into the reactor at a rate of 1mL / min until the pressure of the reactor reaches 3MPa, stabilize the pressure for 10min, and then perform ultrasonic and microwave combined treatment 25min, the ultrasonic frequency is 10kHz, the ultrasonic power is 10W, the microwave frequency is 1000MHz, and the microwave power is 10W, dry to obtain modified phosphogypsum;

[0032] 2) Weigh 10 kg of sea sand, 50 kg of fly ash, 10 kg of modified phosphogypsum, 10 kg of Portland cement, 12 kg of limestone powder, 4 kg of diatomaceous earth, 1 kg of desulfurization ash, 0.5 kg of regulator and Water (the amount of water added is based on the moisture content of the air-dried state of the building material is 8-12%), mixed evenly, exhausted by vacuu...

Embodiment 2

[0034] A kind of air-entrained concrete block, concrete preparation method is as follows (referring to figure 1 shown):

[0035] 1) Weigh phosphogypsum and add water to mix evenly, then place it in a high-pressure reactor, and then feed liquid nitrogen into the reactor at a rate of 5mL / min until the pressure of the reactor reaches 6MPa, stabilize the pressure for 15min, and then perform ultrasonic and microwave combined treatment 65min, ultrasonic frequency is 30kHz, ultrasonic power is 80W, microwave frequency is 2500MHz, microwave power is 80W, dry to obtain modified phosphogypsum;

[0036] 2) Weigh 30 kg of sea sand, 70 kg of fly ash, 30 kg of modified phosphogypsum, 30 kg of Portland cement, 25 kg of limestone powder, 10 kg of diatomaceous earth, 5 kg of desulfurization ash, 3.5 kg of regulator and Water (the amount of water added is based on the moisture content of the air-dried state of the building material is 8-12%), mixed evenly, exhausted by vacuum (vacuum degree ma...

Embodiment 3

[0038]A building material, including the following raw materials: 10 kg of sea sand, 50 kg of fly ash, 10 kg of modified phosphogypsum, 10 kg of Portland cement, 12 kg of limestone powder, 4 kg of diatomaceous earth, and 1 kg of desulfurized ash , 0.002 kg of aluminum powder, 0.001 kg of bubble stabilizer, 0.5 kg of regulator and appropriate amount of water. Wherein, the amount of water added is based on the moisture content of the air-dried state of the building material being 8-12%. The conditioner is prepared by mixing iron tailings sand, sodium silicate and polycarboxylic acid in a weight ratio of 10:1:1. The preparation method of the modified phosphogypsum is to weigh the phosphogypsum, add water and mix it evenly, then place it in a high-pressure reactor, and then feed liquid nitrogen into the reactor at a rate of 3mL / min until the pressure of the reactor reaches 4MPa, and stabilize the pressure. After 12 minutes, ultrasonic and microwave combination treatment was perfo...

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Abstract

The invention relates to the field of environment-friendly building materials, and particularly discloses a building material and a preparation method thereof, and an aerated concrete block and application thereof. The building material comprises the following raw materials: sea sand, fly ash, modified phosphogypsum, Portland cement, limestone powder, diatomite, desulfurized ash, aluminum powder,a bubble stabilizer and a regulator. The building material provided by the invention is high in compressive strength; and the compressive strength of the building material can be effectively improvedon the basis of keeping the dry density of the building material stable by adopting the fly ash, the modified phosphogypsum, the Portland cement, the limestone powder, the diatomite and the like as raw materials, and the problem that the compressive strength of an existing aerated concrete block produced from phosphogypsum cannot be improved on the basis that the dry density of the material is kept stable is solved. The preparation method provided by the invention is simple, can effectively reduce the pollution of the phosphogypsum to the environment, also expands the application way of the phosphogypsum, and has a wide market prospect.

Description

technical field [0001] The invention relates to the field of environment-friendly building materials, in particular to a building material, a preparation method thereof, an aerated concrete block and an application thereof. Background technique [0002] At present, with the continuous strengthening of people's awareness of environmental protection, more and more environmentally friendly new building materials are used in construction; among them, air-entrained concrete materials are generally prepared from river sand, fly ash, ore and other raw materials. , can realize the waste utilization of fly ash and reduce the damage to the ecological environment, which is of great significance to environmental protection. [0003] In the current construction, aerated concrete blocks, as a product processed from aerated concrete materials, are widely used in filled walls due to their advantages of light weight, thermal insulation, and good fire resistance. The construction is simple, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B11/26C04B24/24E04C1/00E04C1/40C04B22/08C04B18/12C04B14/08C04B111/40
CPCC04B11/26C04B28/144C04B40/0039C04B2111/40C04B2201/20C04B2201/50E04C1/00E04C1/40C04B14/068C04B18/08C04B7/02C04B14/28C04B14/08C04B18/12C04B12/04C04B24/24C04B2103/48C04B22/04C04B38/02Y02W30/91
Inventor 杨红英
Owner 杨红英
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