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Gypsum-based foam concrete and preparation method thereof

A foam concrete and gypsum-based technology, applied in the field of building materials, can solve the problems of poor water resistance and high water absorption, and achieve the effect of improving material strength, small pore size, and good foaming performance

Active Publication Date: 2021-04-20
GUANGDONG BOZHILIN ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor water resistance and high water absorption of gypsum-based foamed concrete in the prior art, thereby providing a kind of gypsum-based foamed concrete and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This example provides a gypsum-based foam concrete, including the following raw materials: 23kg of PO42.5 cement, 1.2kg of sulphoaluminate cement, 1.3kg of ground quicklime (the sieve residue of 0.080mm sieve is 10%), pulverized coal Ash 15kg, SiO 2 Airgel 4kg, graphene oxide 0.25kg, polycarboxylate superplasticizer 0.3kg, silicone oil 0.08kg, construction gypsum 55kg, glass fiber 0.2kg, composite foaming agent (tea saponin and sodium lauryl sulfate) Mass ratio is 3:1) 0.12kg, foam stabilizer (hydroxypropyl methylcellulose ether) 0.06kg.

[0044] Present embodiment also provides a kind of preparation method of gypsum-based foamed concrete, comprises the steps:

[0045] (1) Take PO42.5 cement, sulphoaluminate cement, ground quicklime, fly ash, SiO 2 Airgel, graphene oxide, polycarboxylate superplasticizer, silicone oil, construction gypsum, and glass fiber are uniformly mixed to obtain a mixed material, and water is mixed according to the water-material mass ratio of 0...

Embodiment 2

[0049] This embodiment provides a gypsum-based foam concrete, including the following raw materials: 25kg of PO42.5 cement, 2kg of sulphoaluminate cement, 1.5kg of ground quicklime (the sieve allowance of 0.080mm sieve is 12%), fly ash 16kg, SiO 2 Airgel 6kg, graphene oxide 0.3kg, polycarboxylate superplasticizer 0.3kg, silane waterproofing agent 0.05kg, building plaster 60kg, polyester fiber 0.25kg, foam stabilizer (hydroxypropyl methyl cellulose ether) 0.1 kg, composite foaming agent (the mass ratio of tea saponin and sodium lauryl sulfate is 3:1) 0.12kg.

[0050] Present embodiment also provides a kind of preparation method of gypsum-based foamed concrete, comprises the steps:

[0051] (1) Take PO42.5 cement, sulphoaluminate cement, ground quicklime, fly ash, SiO 2 Airgel, graphene oxide, polycarboxylate water reducer, silane water repellent, construction gypsum, and polyester fiber are evenly mixed to obtain a mixed material, which is mixed with water according to the wa...

Embodiment 3

[0055] This example provides a gypsum-based foam concrete, including the following raw materials: 22kg of PO42.5 cement, 2kg of sulphoaluminate cement, 1.0kg of ground quicklime (the sieve allowance of 0.080mm sieve is 8%), and fly ash 13kg, SiO 2 Airgel 6kg, graphene oxide 0.2kg, polycarboxylate superplasticizer 0.4kg, silicone oil 0.08kg, building plaster 65kg, polypropylene fiber 0.15kg, foam stabilizer (hydroxyethyl methyl cellulose ether) 0.12kg , composite foaming agent (the mass ratio of tea saponin and sodium lauryl sulfate is 3:1) 0.2kg.

[0056] Present embodiment also provides a kind of preparation method of gypsum-based foamed concrete, comprises the steps:

[0057] (1) Take PO42.5 cement, sulphoaluminate cement, ground quicklime, fly ash, SiO 2 Airgel, graphene oxide, polycarboxylate water reducer, silicone oil, construction gypsum, and polypropylene fiber are evenly mixed to obtain a mixed material, which is mixed with water according to the water-to-material m...

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Abstract

The invention belongs to the technical field of building materials, and provides gypsum-based foam concrete and a preparation method of the gypsum-based foam concrete. The concrete comprises the following components in parts by weight: 50-65 parts of gypsum, 22-28 parts of Portland cement, 1-2 parts of sulphoaluminate cement, 1-2 parts of quick lime and / or slaked lime, 13-18 parts of fly ash, 4-8 parts of SiO2 aerogel, 0.2-0.4 part of graphene oxide, 0.2-0.4 part of a water reducing agent, 0.05-0.1 part of a waterproof agent and 0.09-0.2 part of a foaming agent. Each component can play a synergistic role in specific proportions, can significantly improve the water resistance of the gypsum-based foam concrete, and the water absorption rate of the gypsum-based foam concrete is obviously reduced.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a gypsum-based foam concrete and a preparation method thereof. Background technique [0002] Floor heating is the abbreviation of floor radiant heating. There are two main forms. One is to use low-temperature hot water (<60°C) as a heat source, and use gas, electric energy or solar energy to heat the water to a specified temperature first, and then lay it under the floor. PE pipe circulates hot water and heats the floor by conduction and radiation. The second is to use electric energy, use geothermal cables as the core part of geothermal electric heating, or use electric heating film materials for heating. The latter uses electric energy directly and consumes a lot of energy, so it is not suitable for ordinary users. Therefore, in the field of decoration, hot water floor heating is generally used for heating. [0003] According to the construction method, hot water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/10
Inventor 于长涛唐振中刘健
Owner GUANGDONG BOZHILIN ROBOT CO LTD
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