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Foam concrete and preparation method thereof

A technology of foam concrete and concrete, which is applied to ceramic products, other household appliances, applications, etc., can solve the problems of reducing surface energy, adverse effects on foam concrete thermal insulation performance, and high open cell rate of foam concrete, so as to reduce the open cell rate and reduce the Effect of small competitive adsorption, inhibition of aggregation and fragmentation

Active Publication Date: 2020-09-22
成都鼎翔商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this technical solution uses a foaming agent containing sodium dodecylbenzene sulfonate, and the concrete contains a certain amount of free sodium ions, which reduces the surface energy and has a certain destructive effect on the air bubbles, resulting in a partial open cell ratio of the foamed concrete. High, which has a certain adverse effect on the thermal insulation performance of foam concrete

Method used

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  • Foam concrete and preparation method thereof
  • Foam concrete and preparation method thereof
  • Foam concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: a kind of foam concrete, comprises the steps:

[0041]Preparation of S1 admixture: Weigh 4Kg of polycarboxylate water reducer, add 1Kg of dodecyl dimethyl amine oxide and 7Kg of glass fiber powder, and mix evenly to prepare the admixture.

[0042] S2 Preparation of foaming solution: Weigh 1.5Kg sodium dodecyl sulfate, add 2Kg sodium dodecylbenzenesulfonate, 2.5Kg casein and 1.5Kg cornstarch, and mix evenly to prepare a foaming agent. Add 40Kg of water to the foaming agent and mix evenly to obtain a foaming liquid.

[0043] S3 slurry preparation, slurry preparation includes the following steps: S3A zeolite powder modification: Weigh 15Kg zeolite powder, add 75Kg pure water, then add 18Kg ammonium chloride, stir at a speed of 200 rpm, heat up to 80°C for modification reaction 300min, filter, wash the filter cake with 45Kg of pure water, dry the filter cake at 70°C for 120min, then roast at 550°C for 200min to obtain a dry powder, crush the dry powder with a...

Embodiment 2

[0046] The difference between Example 2 and Example 1 is that Example 2 does not add casein and cornstarch at the same time, and the others are consistent with Example 1.

Embodiment 3

[0048] The difference between embodiment 3 and embodiment 1 is that embodiment 3 does not add glass fiber powder, and the others are consistent with embodiment 1.

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Abstract

The invention discloses foam concrete and a preparation method thereof, and relates to the technical field of concrete preparation. The foam concrete is mainly prepared from the following concrete rawmaterials in parts by weight: 150 to 230 parts of ceramsite, 200 to 250 parts of cement, 100 to 150 parts of fly ash, 60 to 100 parts of fine aggregate, 140 to 200 parts of water, 10 to 30 parts of nano silica sol and 10 to 20 parts of zeolite powder. The concrete raw material further comprises a foaming agent, and the foaming agent comprises the following raw materials in parts by weight: 1-2 parts of lauryl sodium sulfate and 1-3 parts of sodium dodecyl benzene sulfonate. The concrete raw materials also comprise an admixture. The foam concrete has the advantage of good thermal insulation property. The preparation method of the foam concrete comprises the following steps: preparation of the admixture, preparation of a foaming liquid, preparation of slurry, preparation of the foam concrete and the like. The preparation method of the foam concrete has the advantage that the thermal insulation property of the product is improved.

Description

technical field [0001] The invention relates to the technical field of building material preparation, in particular to a foam concrete and a preparation method thereof. Background technique [0002] Foamed concrete is to fully foam the foaming agent mechanically through the foaming system of the foaming machine, and fully mix the foam with cement slurry and other external materials in a certain proportion, and then carry out cast-in-place construction through the pumping system. A light-weight filling material with a large number of closed pores formed by natural conservation. Foamed concrete has excellent heat insulation, sound insulation and frost resistance, and is widely used in landscaping, sports fields and thermal insulation walls. [0003] The application document with the application publication number CN109942244A discloses a foam concrete, which is composed of the following raw materials in parts by mass: 200-300 parts of cement, 250-370 parts of ceramsite, 380-4...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/10C04B20/04C04B20/02C04B24/38C04B14/04C04B103/42C04B24/14C04B24/16C04B24/20C04B24/12
CPCC04B28/04C04B38/106C04B20/04C04B20/023C04B40/0039C04B2103/42C04B2201/32C04B2201/50C04B14/047C04B2103/302C04B24/12C04B14/42C04B18/027C04B18/08C04B14/00C04B22/06C04B24/16C04B24/20C04B24/14C04B24/38
Inventor 何永生张磊米成高
Owner 成都鼎翔商品混凝土有限公司