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Foam cement and preparation method thereof

A technology of cement and cement foaming agent, which is applied in the field of foamed cement, and can solve problems such as not being able to meet the requirements of foamed cement

Active Publication Date: 2019-12-17
亿恒控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Choosing a single component as a foaming agent can no longer meet the requirements of foamed cement. How to compound a cement foaming agent with good foaming effect from many optional components has always been a problem in this field.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The compounding of embodiment 1 cement blowing agent

[0022] In the process of preparing foamed cement, there are various foaming agents to choose from, including ionic surfactants, foam boosters, and foam stabilizers. Different types of blowing agents have different foaming power and foam stability.

[0023] The present invention is based on ionic surfactant lauryl trimethyl ammonium chloride and lauryl sodium sulfate, wherein, the mass ratio of dodecyl trimethyl ammonium chloride and lauryl sodium sulfate 1:1; and according to the principle of complementary synergies, the effects of foam boosters camphor oil, eucalyptus oil, tea saponin, and foam stabilizers polyvinyl alcohol, polyacrylamide, and hydroxyethyl cellulose on foam performance were investigated. .

[0024] In this embodiment, the influence of the foam booster on the foaming effect of the ionic surfactant is first investigated, and the ratio of the foam booster to the ionic surfactant is as follows:

[...

Embodiment 2

[0041] The preparation of embodiment 2 foam cement

[0042] The most preferred cement foaming agent (mass final concentration is 1% dodecyltrimethylammonium chloride, mass final concentration is 1% sodium lauryl sulfate, mass final concentration in the present embodiment 1) The final concentration is 0.5% eucalyptus oil, the mass final concentration is 0.08% hydroxyethyl cellulose, and the solvent is water).

[0043] Use the above-mentioned cement foaming agent to prepare foamed cement. The specific preparation method can adopt the conventional method in this field. Specifically, in this embodiment, the following preparation method is adopted:

[0044] Get 2000ml of cement foaming agent, utilize the foam maker to prepare foam from the cement foaming agent, and set aside. Weigh 200g of ordinary Portland cement, 10g of water reducing agent, and 15g of bentonite, add them to 2000ml of cement foaming agent prepared from foam, stir them evenly, pour them into a mold for molding an...

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PUM

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Abstract

The invention discloses a cement foaming agent and a technical scheme for preparing foamed cement by using the cement foaming agent. In the invention, the cement foaming agent comprises an ionic surfactant, a foam booster and a foaming stabilizing agent, wherein the ionic surfactant comprises dodecyl trimethyl ammonium chloride and dodecyl sodium sulfate, the foam booster is selected from at leastone of camphor oil, eucalyptus oil and tea saponin, and the foam stabilizer is selected from at least one of polyvinyl alcohol, polyacrylamide and hydroxyethyl cellulose.

Description

technical field [0001] The invention relates to the field of foamed cement, in particular to a compounded cement foaming agent, foamed cement prepared by the same, and a preparation method of the foamed cement. 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 belongs to the bubble-like thermal insulation material, and its outstanding feature is that it forms closed foam pores inside the concrete, which makes the concrete lightweight and thermally insulated. [0003] Foamed cement has good heat insulation, heat preservation, sound insulation, light load and other properties, and is superior to other light...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B28/04C04B38/10C04B103/42
CPCC04B28/04C04B38/10C04B40/0039C04B2103/42C04B24/005C04B24/16C04B24/023C04B24/00C04B24/008C04B24/383C04B14/104C04B2103/302
Inventor 许挺贤
Owner 亿恒控股有限公司