Comprehensive foamed concrete property-modifying additive, preparation method thereof and concrete

A foamed concrete and preparation method technology, applied in the field of concrete additives, can solve the problems of long demoulding time for prefabrication, difficult continuous production, complicated method and process, etc., and achieve the effects of low cost, high production efficiency and simple preparation.

Inactive Publication Date: 2013-07-24
FOSHAN SENKE NEW ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a comprehensive foamed concrete modification additive and its preparation method and concrete, aiming to solve the severe restriction of existing single physical or chemical foamed cement additives on the special manufacturing equipment used in the production of foamed cement , and there are technical problems in the process of panel production, such as complex operation of special manufacturing equipment, difficulty in continuous production due to time constraints, long demoulding time for prefabricated molding, and high production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take respectively: 1.8 parts of calcium stearate, 1.2 parts of diffusing agent NNO, 0.8 parts of FDN superplasticizer (testing standard: GB8076-2008), 1.2 parts of light calcium carbonate, 0.2 parts of hydroxypropyl methyl cellulose ether, VaC / E (vinyl acetate and ethylene copolymer powder) 0.7 parts, rosin soap foaming powder 0.4 parts, aluminum sulfate 0.5 parts, sodium silicate 1.5 parts, sodium dodecylbenzenesulfonate 0.2 parts, sodium hexametaphosphate 0.5 servings. Grind each component separately to 290 mesh, mix, stir evenly, and store to obtain a comprehensive foamed concrete modification additive.

[0032] Take respectively: 2% of comprehensive foamed concrete modification additive, 55% of water, 1% of hydrogen peroxide, 100% of ordinary Portland foamed concrete and other base materials (ordinary Portland cement can be added with appropriate amount of light , fly ash as the base material, and 100% as the base), add each component respectively according to the ...

Embodiment 2

[0034]Take respectively: 1.8 parts of calcium stearate, 1.2 parts of diffusing agent NNO, 0.8 parts of FDN superplasticizer (testing standard: GB8076-2008), 1.2 parts of light calcium carbonate, 0.2 parts of hydroxypropyl methyl cellulose ether, 0.7 parts of E / VC / VL (ethylene, vinyl chloride and vinyl lauryl silicate terpolymer copolymer powder), 0.4 parts of rosin soap foaming powder, 0.5 parts of aluminum sulfate, 1.5 parts of sodium silicate, dodecylbenzenesulfonate 0.2 parts of sodium hexametaphosphate, 0.5 parts of sodium hexametaphosphate, and 0.5 parts of heavy calcium carbonate. Grind each component separately to 300 meshes, mix, stir evenly and store, so as to obtain a comprehensive foamed concrete modification additive.

[0035] Take respectively: 1% comprehensive foamed concrete modification additive, 52% water, 0.5% hydrogen peroxide, 100% ordinary silicate foamed concrete and other base materials, add each component according to the above ratio, and use ordinary m...

Embodiment 3

[0037] Take respectively: 1.8 parts of calcium stearate, 1.2 parts of diffusing agent NNO, 0.8 parts of FDN superplasticizer (testing standard: GB8076-2008), 1.2 parts of light calcium carbonate, 0.2 parts of hydroxypropyl methyl cellulose ether, VaC / E (vinyl acetate and ethylene copolymer powder) 0.7 parts, rosin soap foaming powder 0.4 parts, aluminum sulfate 0.5 parts, sodium silicate 1.5 parts, sodium dodecylbenzenesulfonate 0.2 parts, sodium hexametaphosphate 0.5 parts, bauxite 0.2 parts. Grind each component separately to 310 mesh, mix, stir evenly, and store to obtain a comprehensive foamed concrete modification additive.

[0038] Take respectively: 2% comprehensive foamed concrete modification additive, 66% water, 2% hydrogen peroxide, 100% ordinary silicate foamed concrete and other base materials, add each component according to the above ratio, and use ordinary mortar The mixer follows the common mortar mixing procedure to mix the ingredients evenly. When the morta...

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Abstract

The invention discloses a comprehensive foamed concrete property-modifying additive, a preparation method thereof and concrete. The property-modifying additive comprises the following components in parts by weight: 1.8 parts of calcium stearate, 1.2 parts of dispersing agent NNO, 0.8 part of FDN superplasticizer, 1.2 parts of light calcium carbonate, 0.2 part of hydroxypropyl methylcellulose, 0.7 part of redispersible powder, 0.4 part of rosinate soap foaming powder (vegetable protein), 0.5 part of aluminum sulfate, 1.5 parts of sodium silicate, 0.2 part of sodium dodecyl benzene sulfonate and 0.5 part of sodium hexametaphosphate. A foamed cement (concrete) product prepared by using the comprehensive foamed concrete property-modifying additive disclosed by the invention has an excellent heat insulation property and is light in weight, low in flexible damping property and excellent in sound insulation property and water resistance.

Description

technical field [0001] The invention relates to a concrete additive, in particular to a comprehensive foamed concrete modification additive suitable for ordinary portland cement, a preparation method thereof and concrete. Background technique [0002] Foamed cement (concrete) is a new type of lightweight thermal insulation material containing a large number of closed pores. It belongs to the bubble-shaped thermal insulation material. Its outstanding feature is the formation of honeycomb-shaped closed independent foam pores inside the concrete. Foamed cement (concrete) has the advantages of light weight, thermal insulation, etc., and has excellent reprocessing performance. High-quality foamed cement requires uniform foam (foam diameter 1-3mm), good foam strength, and easy control of product bulk density and quality during production operations. However, the existing physical or chemical foamed cement additives require strict and dedicated manufacturing equipment in the actua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B24/38
Inventor 胡斌源高艳慧徐可新
Owner FOSHAN SENKE NEW ENERGY DEV
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