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Foamed element and preparation method thereof

A foamed cement and ordinary Portland cement technology, applied in the field of cement, can solve the problem of low strength, etc., and achieve the effects of improving structural compactness, increasing strength and increasing stability

Inactive Publication Date: 2019-01-18
怀宁建国混凝土制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are a large number of closed voids in foamed cement, which makes its strength not high.

Method used

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  • Foamed element and preparation method thereof
  • Foamed element and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of foam cement, its raw material comprises by weight: 65 parts of ordinary Portland cement, 12.5 parts of fly ash, 2.5 parts of sodium dodecylsulfonate, 0.75 parts of tea saponin, 0.6 parts of foam stabilizer, waterproof 1.25 parts of water reducing agent, 0.075 parts of water reducing agent, 2 parts of reinforcing agent, 35 parts of water, wherein the reinforcing agent is polypropylene fiber, basalt fiber and carbon fiber.

[0018] The preparation method of the above-mentioned foamed cement comprises the following steps: mixing and foaming sodium dodecylsulfonate, tea saponin and water to obtain a foam solution; mixing ordinary Portland cement, fly ash, foam stabilizer, waterproof Mixing agent, water reducing agent and reinforcing agent, adding foam solution and mixing, injection molding, curing to obtain foamed cement, wherein the temperature of water is 42°C.

Embodiment 2

[0020] A kind of foam cement, its raw material comprises by weight: 60 parts of ordinary Portland cement, 15 parts of fly ash, 2 parts of sodium dodecylsulfonate, 1 part of tea saponin, 0.5 part of foam stabilizer, waterproof 1.5 parts of agent, 0.05 part of disodium methylene bis-naphthalene sulfonate, 3 parts of reinforcing agent, 32 parts of water, wherein, reinforcing agent is polypropylene fiber, basalt fiber and carbon fiber, wherein, polypropylene fiber, basalt fiber and carbon fiber The weight ratio is 4:0.5:0.8;

[0021] The length of polypropylene fiber, basalt fiber and carbon fiber is 4mm.

[0022] The preparation method of the above-mentioned foamed cement comprises the following steps: mixing and foaming sodium dodecylsulfonate, tea saponin and water to obtain a foam solution; mixing ordinary Portland cement, fly ash, foam stabilizer, waterproof Mixing agent, water reducing agent and reinforcing agent, adding foam solution and mixing, injection molding, curing t...

Embodiment 3

[0024] A kind of foam cement, its raw material comprises by weight: 70 parts of ordinary Portland cement, 10 parts of fly ash, 3 parts of sodium dodecylsulfonate, 0.5 part of tea saponin, 0.7 part of foam stabilizer, waterproof 1 part of agent, 0.1 part of disodium methylene bis-naphthalene sulfonate, 1 part of reinforcing agent, 39 parts of water, wherein, reinforcing agent is polypropylene fiber, basalt fiber and carbon fiber, wherein, polypropylene fiber, basalt fiber and carbon fiber The weight ratio is 2:1:0.6;

[0025] The length of polypropylene fiber, basalt fiber and carbon fiber is 5mm;

[0026] The specific surface area of ​​fly ash is 800m 2 / kg;

[0027] The foam stabilizer is lauroyl diethanolamine and gum arabic, wherein the weight ratio of lauroyl diethanolamine and gum arabic is 1:1;

[0028] The waterproofing agent is sodium methyl siliconate and water glass, wherein the weight ratio of sodium methyl siliconate and water glass is 2:1.

[0029] The prepara...

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Abstract

The invention discloses foamed element. The foamed element contains the following raw materials in parts by weight: 60-70 parts of ordinary Portland cement, 10-15 parts of coal ash, 2-3 parts of sodium dodecyl sulfate, 0.5-1 part of tea saponin, 0.5-0.7 part of a foam stabilizer, 1-1.5 parts of a waterproof agent, 0.05-0.1 part of a water reducer, 1-3 parts of an enhancer and 32-39 parts of water,wherein the enhancer is a polypropylene fiber, a basalt fiber and a carbon fiber. The invention further discloses a preparation method of the foamed element. The preparation method comprises the following steps: uniformly mixing sodium dodecyl sulfate, tea saponin and water, and foaming, so as to obtain a foam solution; and uniformly mixing the ordinary Portland cement, the coal ash, the foam stabilizer, the waterproof agent, the water reducer and the enhancer, adding the foam solution, and carrying out injection molding formation and maintenance, so as to obtain the foamed element. The foamed element has good waterproof property, strength and anti-cracking property.

Description

technical field [0001] The invention relates to the technical field of cement, in particular to a foamed cement and a preparation method thereof. Background technique [0002] Foamed cement is to fully foam the foaming agent mechanically through the foaming system of the foaming machine, and evenly mix the foam with the cement slurry, and then go through the pumping system of the foaming machine for cast-in-place construction or mold molding. A new type of lightweight thermal insulation material with a large number of closed pores formed by natural conservation. It makes concrete lightweight and thermally insulated. However, there are a large number of closed voids in foamed cement, which makes its strength not high. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes a foamed cement and a preparation method thereof. The present invention has good water resistance, strength and crack resistance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B28/04
CPCC04B28/04C04B38/106C04B2201/32C04B2201/50C04B18/08C04B24/16C04B24/04C04B24/122C04B24/38C04B24/42C04B12/04C04B24/20C04B22/002C04B16/0633C04B14/386C04B14/4643
Inventor 刘三宝
Owner 怀宁建国混凝土制品有限责任公司
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