Foamed concrete and preparation method thereof

A foamed concrete and foaming agent technology, applied in the field of building materials, can solve the problems of uneven size of bubbles, high construction difficulty and high cost, and achieve the effects of small voids, good heat insulation effect and high mechanical strength

Active Publication Date: 2013-09-18
MAANSHAN MCC17 ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are that large-scale mechanical equipment is required, and it is difficult to construct on the floors and roofs of high-rise buildings, and the foam pore size is uneven, the density is not easy to control, the strength is low, and the cost is high.
A kind of foam concrete and its preparation method introduced in the patented technology of application number 201010264056.X, use cement, ore powder, fly ash and water to stir first to form a slurry, then pour in the chemical foaming agent hydrogen peroxide to mix and stir, and then construct Although this method eli...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: a kind of foam concrete, its raw material is made up of cementitious material, light aggregate, water, foaming agent, thickener and reinforcing fiber, wherein the mass percentage of cementitious material is 41%; Light aggregate The mass percentage of material is 41%; the mass percentage of water is 16%; the mass percentage of foaming agent is 1.92%; the mass percentage of thickener is 0.04%; the mass percentage of reinforcing fiber is 0.04%.

[0027] The cementitious material of the above-mentioned foam concrete is composed of cement and fly ash, wherein the mass percentage of cement in the cementitious material is 90%, the mass percentage of fly ash in the cementitious material is 10%, and the cement is labeled 42.5 Ordinary Portland cement in MPa.

[0028] The lightweight aggregate of the above-mentioned foam concrete is composed of coarse and fine light aggregates, wherein the coarse and light aggregates account for 70% of the aggregate volume ratio, an...

Embodiment 2

[0037] Embodiment 2: a kind of foam concrete, its raw material is made up of cementitious material, light aggregate, water, foaming agent, thickener and reinforcing fiber, wherein, the mass percentage of cementitious material is 32%; The mass percentage of aggregate is 48%; the mass percentage of water is 16.5%; the mass percentage of foaming agent is 3.28%; the mass percentage of thickener is 0.16%; the mass percentage of reinforcing fiber is 0.06%.

[0038] Above-mentioned foam concrete, its cementitious material is combined by cement and fly ash, wherein the mass percent of cement in cementitious material is 80%, the mass percent of flyash in cementitious material is 20%, cement is Portland slag cement with a label of 42.5MPa.

[0039] The above-mentioned foamed concrete, its light aggregate is composed of coarse and fine light aggregate, wherein the coarse light aggregate accounts for 60% of the accumulation volume ratio of the aggregate, the fine light aggregate accounts ...

Embodiment 3

[0048] Embodiment 3: a kind of foam concrete, its raw material is made up of cementitious material, light aggregate, water, foaming agent, thickener and reinforcing fiber, wherein, the mass percent of cementitious material is 46.7%; The mass percentage of aggregate is 20%; the mass percentage of water is 28%; the mass percentage of foaming agent is 4.7%; the mass percentage of thickener is 0.3%; the mass percentage of reinforcing fiber is 0.3%.

[0049] Above-mentioned foam concrete, its cementitious material is combined by cement and fly ash, wherein the mass percent of cement in cementitious material is 70%, the mass percent of flyash in cementitious material is 30%, cement is Ordinary Portland cement with a designation of 52.5MPa.

[0050] The above-mentioned foam concrete, its light aggregate is composed of coarse and fine light aggregate, wherein the coarse light aggregate accounts for 50% of the accumulation volume ratio of the aggregate, the fine light aggregate account...

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Abstract

The invention provides foamed concrete and a preparation method thereof, and belongs to the technical field of building materials. The foamed concrete provided by the invention consists of the following components in percentage by mass: 25-55 percent of a gel material, 18-50 parts of light aggregate, 13-36 parts of water, 0.5-5 parts of a foaming agent, 0.03-0.5 part of a thickening agent and 0.03-0.5 part of enhanced fiber, wherein the gel material consists of cement and coal ash or superfine slag powder; the light aggregate consists of coarse light aggregates and fine light aggregates; the foaming agent is a hydrogen peroxide solution or an ammonium hydrogen carbonate; the thickening agent is powdered carboxymethylcellulose; the enhanced fiber is a lignin fiber or a polypropylene fiber or an alkali resistance glass fiber which is 5-20 mm long. The water prevention, sound isolation and heat isolation effects of the foamed concrete prepared by the invention are better than those of the existing foamed concrete. According to the method, the foaming process of processing various batches and scales of foamed concrete can be precisely controlled by in-situ foaming; the method can be suitable for large-scale production of high-quality foamed concrete.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a foam concrete and a preparation method thereof. Background technique [0002] At present, the construction of the foam concrete insulation system on the floor and roof, as well as the insulation boards and blocks (blocks) all adopt the foaming method of mechanical and physical (animal and plant composite) foaming agents, which are first prepared into foam, and then combined with The concrete slurry is mixed and stirred, and finally transported by mechanical pumping equipment for construction, which is used for on-site construction of various floors. The disadvantages are that large-scale mechanical equipment is required, and it is difficult to construct on the floors and roofs of high-rise buildings, and the foam pore size is uneven, the density is not easy to control, the strength is low, and the cost is high. A kind of foam concrete and its preparation...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/02
Inventor 樊传刚雷团结陈贺钱元弟王孝平
Owner MAANSHAN MCC17 ENG TECH CO LTD
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