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Lightweight concrete, lightweight concrete prefabricated member, preparation method of lightweight concrete prefabricated member, and building material

A technology for lightweight concrete and building materials, applied in the field of lightweight concrete, can solve the problems of insufficient mixing of foam and mud, not easy to mix, and long mixing time, so as to save the cost of landfill treatment, reduce the burden on the environment, and alleviate the shortage of resources. Effect

Active Publication Date: 2018-11-27
GUANGDONG KITO CERAMICS GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When making traditional lightweight concrete, it is easy to appear that the density of cement and other cementitious materials is high, and the density of foam is very small. The density of the two is very different. The foam will float on the aqueous solution of cementitious materials, and the two are not easy to mix together. question
Moreover, in the actual production, the foam will be destroyed by the stirring action during the mixing process with the concrete slurry
If the mixing time is short, the mixing of foam and mud will not be sufficient, if the mixing time is long, the loss of foam will be large, the concrete will collapse seriously, and the density of concrete products cannot be guaranteed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This embodiment provides a kind of lightweight concrete, which comprises the following raw materials in parts by weight: 450 parts of cement, 300 parts of ceramic particles passed through a +8 mesh sieve, and ceramic particles passed through a -8 to +16 mesh sieve 450 parts, 390 parts of ceramic particles through -16 mesh sieve, 2 parts of hydroxypropyl methylcellulose, 0.4 parts of carboxymethyl starch ether, 10 parts of heavy calcium, 12 parts of redispersible latex powder and 6.6 parts of defoamer share.

[0070] Among them, the cement is ordinary Portland cement, and the ceramic particles are obtained by crushing waste materials of foamed ceramics to the target particle size; the redispersible latex powder is copolymerized rubber powder of vinyl acetate and ethylene, and the defoamer is polyoxygen Ethylene polyoxypropylene pentaerythritol ether.

Embodiment 2

[0072] This embodiment provides a kind of lightweight concrete, which comprises the following raw materials in parts by weight: 440 parts of cement, 310 parts of ceramic particles passed through a +8 mesh sieve, and ceramic particles passed through a -8 to +16 mesh sieve 440 parts, 400 parts of ceramic particles passed through -16 mesh sieve, 1.8 parts of hydroxypropyl methylcellulose, 0.5 parts of carboxymethyl starch ether, 9 parts of heavy calcium, 13 parts of redispersible latex powder and 6 parts of defoamer share.

[0073]Among them, the cement is ordinary Portland cement, and the ceramic particles are obtained by crushing waste materials of foamed ceramics to the target particle size; the redispersible latex powder is copolymerized rubber powder of vinyl acetate and ethylene, and the defoamer is polyoxygen Ethylene polyoxypropylene pentaerythritol ether.

Embodiment 3

[0075] This embodiment provides a kind of lightweight concrete, which comprises the following raw materials in parts by weight: 450 parts of cement, 290 parts of ceramic particles passed through a +8 mesh sieve, and ceramic particles passed through a -8 to +16 mesh sieve 460 parts, 380 parts of ceramic particles passed through -16 mesh sieve, 2.2 parts of hydroxypropyl methylcellulose, 0.3 parts of carboxymethyl starch ether, 11 parts of heavy calcium, 11 parts of redispersible latex powder and 7 parts of defoamer share.

[0076] Among them, the cement is ordinary Portland cement, and the ceramic particles are obtained by crushing waste materials of foamed ceramics to the target particle size; the redispersible latex powder is copolymerized rubber powder of vinyl acetate and ethylene, and the defoamer is polyoxygen Ethylene polyoxypropylene pentaerythritol ether.

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Abstract

The invention provides a lightweight concrete, a lightweight concrete prefabricated member, a preparation method of the lightweight concrete prefabricated member, and a building material, and relatesto the technical field of lightweight concrete. The lightweight concrete is mainly composed of cement, ceramic particles screened via +18 meshes, ceramic particles screened via -8 to +16 meshes, ceramic particles screened via -16 meshes, and optional auxiliaries, wherein the ceramic particles are mainly prepared from waste foam ceramics. The lightweight concrete integrates high mechanical performance and high thermal insulating performance. Both the light weight concrete prefabricated member and the building material are mainly prepared from the lightweight concrete and accordingly are high inmechanical performance and thermal insulating performance. The preparation method of the lightweight concrete prefabricated member has the advantages of being simple in process and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of lightweight concrete, in particular to a lightweight concrete, a lightweight concrete prefabricated part, a preparation method thereof, and a building material. Background technique [0002] Lightweight concrete is also called foamed concrete. Existing lightweight concrete usually introduces air or nitrogen, carbon dioxide, oxygen and other gases into the concrete slurry to form a large number of small closed pores to reduce the quality of the concrete. When making traditional lightweight concrete, it is easy to appear that the density of cement and other cementitious materials is high, and the density of foam is very small. The density of the two is very different. The foam will float on the aqueous solution of cementitious materials, and the two are not easy to mix together. question. Moreover, in actual production, the foam will be destroyed by the stirring action during the mixing process with the co...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/08C04B111/40C04B111/52
CPCC04B28/04C04B2111/40C04B2111/52C04B2201/20C04B2201/32C04B2201/50C04B18/027C04B20/0076C04B24/383C04B24/38C04B14/28C04B24/26C04B24/32C04B38/08C04B24/2682C04B24/42
Inventor 黄惠宁张国涛张王林黄辛辰江期鸣
Owner GUANGDONG KITO CERAMICS GROUP CO LTD