Phosphorous slag aerated concrete and preparation method thereof

A technology of air-entrained concrete and phosphorus slag, which is used in ceramic products, climate sustainability, other household appliances, etc., to achieve novel processing technology, reduce CO2 emissions, and reduce consumption.

Active Publication Date: 2010-05-19
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method improves the original aerated concrete maintenance system and reduces energy consumption, this method uses 5% to 15% of high energy consumption materials - cement

Method used

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  • Phosphorous slag aerated concrete and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0047] A kind of phosphorus slag aerated concrete and preparation method thereof, comprises the following steps:

[0048] a. Preparation of water glass with a modulus of 1.2: Weigh 211.4 g of commercially available water glass with a modulus of 3.16, add 48.0 g of flake NaOH, and stir with a glass rod until NaOH is completely dissolved. ready for use;

[0049] B, weighing: get mixed into cementitious material by the proportion of phosphorus slag 80% (weight percent example, the same after), fly ash 20%; Water glass modulus 1.2; Alkali content 6% (being the consumption of water glass Press Na 2 O weight is calculated as 6% of the weight of the gelled material); 0.1% of the air-entraining agent aluminum powder (that is, the consumption of the aluminum powder is 0.1% of the weight of the gelled material), and the ratio of water to the gelled material is 0.3. The total amount of powder prepared in this embodiment is 1000g, and the specific data is taken by weighing as follows: ...

Embodiment 2

[0057] A kind of phosphorus slag aerated concrete and preparation method thereof, comprises the following steps:

[0058] a. Preparation of water glass with a modulus of 1.0: Weigh 205.5 g of commercially available water glass with a modulus of 3.16, add 61.7 g of flake NaOH, and stir with a glass rod until NaOH is completely dissolved. ready for use;

[0059] B, weighing: phosphorus slag 90% (weight percent example, the same afterward), fly ash 10% ratio is taken and mixed into cementitious material; Water glass modulus 1.0; Alkali content 7% (being the consumption of water glass according to Na 2 O weight is calculated as 7% of the gelled material weight); Aluminum powder 0.1% (the consumption that is aluminum powder is 0.1% of the gelled material weight); Water and the ratio 0.28 of the gelled material. The total amount of powder prepared in this example is 1000g, and the specific data is taken by weighing as follows:

[0060] 900g of phosphorus slag; 100g of fly ash; 1....

Embodiment 3

[0067] A kind of phosphorus slag aerated concrete and preparation method thereof, comprises the following steps:

[0068] a. Preparation of water glass with a modulus of 1.2: Weigh 246.6g of commercially available water glass with a modulus of 3.16, add 56.0g of flake NaOH, and stir with a glass rod until NaOH is completely dissolved. ready for use;

[0069] B, weighing: phosphorus slag 80% (weight percent example, the same afterward), fly ash 20% ratio is taken and mixed into cementitious material; Water glass modulus 1.2; Alkali content 7% (being the consumption of water glass according to Na 2 O weight is calculated as 7% of the gelled material weight); Aluminum powder 0.1% (the consumption that is aluminum powder is 1% of the gelled material weight), the ratio 0.28 of water and the gelled material. The total amount of powder prepared in this example is 1000g, and the specific data is taken by weighing as follows:

[0070] Phosphorus slag 800g; fly ash 200g; elemental si...

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Abstract

The invention discloses a phosphorous slag aerated concrete. The concrete is characterized by consisting of a binding material, an exciting agent, an air entraining agent and water which are mixed, wherein the binding material consists of 60 to 100 weight percent of phosphorous slag and 0 to 40 weight percent of pulverized fuel ash; the exciting agent is water glass with modulus of 1.0 to 1.6; the water glass accounts for 5 to 8 weight percent of the binding material based on the weight of Na2O; the air entraining agent is aluminum powder or simple substance silicon; the using amount of the aluminum powder is 0.1 to 0.2 weight percent of the binding material; the using amount of the simple substance silicon is 0.05 to 0.1 weight percent of the binding material; and the weight ratio of theusing amount of the water to the using amount of the binding material is 0.28 to 0.32. The phosphorous slag aerated concrete product is prepared by taking the industrial waste slag such as the phosphorous slag and the like as the binding material and mixing the phosphorous slag, the exciting agent, the air entraining agent and the water. The phosphorous slag aerated concrete has the advantages that: the preparation process is simple without vapor-pressure process, so that the equipment investment can be greatly reduced; and the product is a sealed porous structure and has the characteristics of light weight, high strength, low thermal conductivity, good thermal insulation property and the like.

Description

technical field [0001] The invention belongs to a concrete composition and a preparation method thereof, and relates to a phosphorus slag aerated concrete and a preparation method thereof. It is suitable for preparing a kind of light-weight building material with low carbon emission. Background technique [0002] Due to serious problems caused by environmental degradation, the research on environmentally friendly materials is very urgent. CO can be reduced in industrial production processes 2 emissions is particularly important, the production of traditional Portland cement will emit a large amount of CO 2 , while reducing CO in cement production 2 The amount of cement is very limited, so it is urgent to find a cementitious material with low carbon emissions to replace cement. [0003] Lightweight building material is a new type of building material that is light in weight, has a certain strength, and has the functions of thermal insulation and noise prevention. With th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08C04B38/02
CPCC04B7/38C04B2111/28C04B28/087Y02W30/91Y02P40/10Y02P40/121C04B18/08C04B22/02C04B38/0061C04B38/02C04B40/0028C04B2103/10C04B12/04C04B22/04C04B7/147
Inventor 严云江晓君胡志华
Owner SOUTHWEAT UNIV OF SCI & TECH
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