Novel composite gypsum building block and application thereof

Abstract

The invention relates to a novel composite gypsum building block and application thereof. The novel composite gypsum building block comprises a composite gypsum block body, a steam-proof block body and a barrier block body, the steam-proof block body is arranged on the gypsum block body, and an adsorptive block body is arranged on the steam-proof block body. The gypsum block body is prepared fromthe following raw materials: gypsum, furnace slag, expanded perlite, silicon powder, nanofibers, a solid phase change heat storage material, a reinforcing agent and a water reducing agent. The steam-proof block body is prepared from the following raw materials: an ethylene-vinyl acetate copolymer, nano aluminum powder and polyethylene. The barrier block body is prepared from the following raw materials: silicon dioxide, zeolite powder, bentonite, ceramsite, calcium silicate and condensed magnesium phosphate. According to the gypsum building block, the steam-proof block body and the barrier block body are compounded on the surface of the gypsum block body to form the gypsum building block, so that the gypsum building block has good corrosion resistance to ammonia gas and water vapor generated in a toilet, meanwhile, the formation of temperature stress in the use process can be reduced, and the cracking of a building block wall body is prevented.

Description

technical field

[0001] The invention belongs to the technical field of building materials, in particular to a novel composite gypsum block and its application. Background technique

[0002] Block is an artificial block made of concrete, industrial waste or local materials. It is a new type of wall material. The shape is mostly rectangular hexahedron, and there are also various special-shaped blocks. It meets the requirements of wall reform in the development of building industrialization. According to different materials, commonly used blocks include ordinary concrete and decorative concrete small hollow blocks, light aggregate concrete small hollow blocks, fly ash small hollow blocks, steam aerated concrete blocks, steam-free aerated concrete Blocks (also known as environmentally friendly lightweight concrete blocks) and gypsum blocks.

[0003] Gypsum blocks have the characteristics of light weight, high strength, good durability, accurate size, smooth surface, fire preve...

Examples

Embodiment 1

[0028] The gypsum block is made of the following raw materials: 30 parts of hemihydrate gypsum, 6 parts of slag, 3 parts of expanded perlite, 4 parts of silicon powder, 0.5 part of nanofiber, 3 parts of solid phase change heat storage material, 0.1 part of sodium silicate, 0.1 part of polycarboxylate superplasticizer.

[0029] Among them, hemihydrate gypsum is made by sintering phosphogypsum.

[0030] The preparation of solid phase change heat storage materials is as follows: mix polyvinyl alcohol and polyethylene glycol with a mass ratio of 5:1 to form a mixture, add water 20 times the weight of the mixture, heat to 70-80°C, and then add Activated carbon powder with a mass of 10% of the mixture is heat-preserved and stirred for 6-7 hours, left standing for 4-5 hours, concentrated by evaporation, dried, and pelletized to obtain a solid phase-change heat storage material.

[0031] The steam-proof block is made of the following raw materials: 6 parts of ethylene-vinyl acetate c...

Embodiment 2

[0040] The gypsum block is made of the following raw materials: 34 parts of hemihydrate gypsum, 7 parts of slag, 4 parts of expanded perlite, 5 parts of silicon powder, 0.8 part of nanofiber, 3.5 parts of solid phase change heat storage material, 0.12 part of sodium silicate, 0.12 parts of polycarboxylate superplasticizer.

[0041] Among them, hemihydrate gypsum is made by sintering desulfurized gypsum.

[0042] The preparation of solid phase change heat storage materials is as follows: mix polyvinyl alcohol and polyethylene glycol with a mass ratio of 5:1 to form a mixture, add water 20 times the weight of the mixture, heat to 70-80°C, and then add Activated carbon powder with a mass of 13% of the mixture is heat-preserved and stirred for 6-7 hours, left to stand for 4-5 hours, concentrated by evaporation, dried, and pelletized to obtain a solid phase-change heat storage material.

[0043] The steam-proof block is made of the following raw materials: 5.4 parts of ethylene-vi...

Embodiment 3

[0052] The gypsum block is made of the following raw materials: 40 parts of hemihydrate gypsum, 8 parts of slag, 5 parts of expanded perlite, 6 parts of silicon powder, 1 part of nanofiber, 4 parts of solid phase change heat storage material, 0.2 part of sodium silicate, 0.15 parts of polycarboxylate superplasticizer.

[0053] Among them, hemihydrate gypsum is made by sintering citrate gypsum.

[0054] The preparation of solid phase change heat storage materials is as follows: mix polyvinyl alcohol and polyethylene glycol with a mass ratio of 5:1 to form a mixture, add water 20 times the weight of the mixture, heat to 70-80°C, and then add Activated carbon powder with a mass of 15% of the mixture is heat-preserved and stirred for 6-7 hours, left standing for 4-5 hours, concentrated by evaporation, dried, and pelletized to obtain a solid phase-change heat storage material.

[0055] The steam-proof block is made of the following raw materials: 6 parts of ethylene-vinyl acetate ...

technical field

[0001] The invention belongs to the technical field of building materials, in particular to a novel composite gypsum block and its application. Background technique

[0002] Block is an artificial block made of concrete, industrial waste or local materials. It is a new type of wall material. The shape is mostly rectangular hexahedron, and there are also various special-shaped blocks. It meets the requirements of wall reform in the development of building industrialization. According to different materials, commonly used blocks include ordinary concrete and decorative concrete small hollow blocks, light aggregate concrete small hollow blocks, fly ash small hollow blocks, steam aerated concrete blocks, steam-free aerated concrete Blocks (also known as environmentally friendly lightweight concrete blocks) and gypsum blocks.

[0003] Gypsum blocks have the characteristics of light weight, high strength, good durability, accurate size, smooth surface, fire preve...

Examples

Embodiment 1

[0028] The gypsum block is made of the following raw materials: 30 parts of hemihydrate gypsum, 6 parts of slag, 3 parts of expanded perlite, 4 parts of silicon powder, 0.5 part of nanofiber, 3 parts of solid phase change heat storage material, 0.1 part of sodium silicate, 0.1 part of polycarboxylate superplasticizer.

[0029] Among them, hemihydrate gypsum is made by sintering phosphogypsum.

[0030] The preparation of solid phase change heat storage materials is as follows: mix polyvinyl alcohol and polyethylene glycol with a mass ratio of 5:1 to form a mixture, add water 20 times the weight of the mixture, heat to 70-80°C, and then add Activated carbon powder with a mass of 10% of the mixture is heat-preserved and stirred for 6-7 hours, left standing for 4-5 hours, concentrated by evaporation, dried, and pelletized to obtain a solid phase-change heat storage material.

[0031] The steam-proof block is made of the following raw materials: 6 parts of ethylene-vinyl acetate c...

Embodiment 2

[0040] The gypsum block is made of the following raw materials: 34 parts of hemihydrate gypsum, 7 parts of slag, 4 parts of expanded perlite, 5 parts of silicon powder, 0.8 part of nanofiber, 3.5 parts of solid phase change heat storage material, 0.12 part of sodium silicate, 0.12 parts of polycarboxylate superplasticizer.

[0041] Among them, hemihydrate gypsum is made by sintering desulfurized gypsum.

[0042] The preparation of solid phase change heat storage materials is as follows: mix polyvinyl alcohol and polyethylene glycol with a mass ratio of 5:1 to form a mixture, add water 20 times the weight of the mixture, heat to 70-80°C, and then add Activated carbon powder with a mass of 13% of the mixture is heat-preserved and stirred for 6-7 hours, left to stand for 4-5 hours, concentrated by evaporation, dried, and pelletized to obtain a solid phase-change heat storage material.

[0043] The steam-proof block is made of the following raw materials: 5.4 parts of ethylene-vi...

Embodiment 3

[0052] The gypsum block is made of the following raw materials: 40 parts of hemihydrate gypsum, 8 parts of slag, 5 parts of expanded perlite, 6 parts of silicon powder, 1 part of nanofiber, 4 parts of solid phase change heat storage material, 0.2 part of sodium silicate, 0.15 parts of polycarboxylate superplasticizer.

[0053] Among them, hemihydrate gypsum is made by sintering citrate gypsum.

[0054] The preparation of solid phase change heat storage materials is as follows: mix polyvinyl alcohol and polyethylene glycol with a mass ratio of 5:1 to form a mixture, add water 20 times the weight of the mixture, heat to 70-80°C, and then add Activated carbon powder with a mass of 15% of the mixture is heat-preserved and stirred for 6-7 hours, left standing for 4-5 hours, concentrated by evaporation, dried, and pelletized to obtain a solid phase-change heat storage material.

[0055] The steam-proof block is made of the following raw materials: 6 parts of ethylene-vinyl acetate ...

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