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Alkali slag aerated concrete and preparation method thereof

An air-entrained concrete and alkali slag technology, applied in the field of building materials, can solve the problems of large emission, adverse impact of accumulation and emission on the environment, and no effective utilization, etc., and achieves light bulk density, excellent macro performance, and good thermal insulation performance. Effect

Inactive Publication Date: 2020-05-08
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Slag is an industrial by-product with a huge annual discharge, and its accumulation and discharge have adverse effects on the environment. At present, slag is mainly used to produce slag Portland cement or as an external admixture for concrete, and has not been effectively utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: An alkali slag air-entrained concrete, including slag, water, water glass, an air generating agent, a bubble stabilizer and a setting retarder. In this embodiment: the gas generating agent is oily aluminum paste powder after degreasing treatment, the bubble stabilizer is triethanolamine, and the retarder is borax.

[0023] Further, the quality of slag described in per cubic meter of alkali slag aerated concrete is 500kg, the quality of water is 238kg, the quality of water glass is 113kg, the dosage of gas generating agent is 0.10% of the quality of slag, and the dosage of air bubble stabilizer It is 0.1% of the mass of slag, and the dosage of retarder is 1.5% of the mass of slag.

[0024] Further, the slag is water-quenched blast furnace slag, the mass percentage of CaO in the slag is 39.7%, SiO 2 The mass percentage is 30.6%, Fe 2 o 3 The mass percentage is 1.62%, Al 2 o 3 The mass percentage of MgO is 13.24%, and the mass percentage of MgO is 4.19%;...

Embodiment 2

[0034] Embodiment 2: an alkali slag aerated concrete, including slag, water, water glass, air generating agent, bubble stabilizer and retarder. In this embodiment: the gas generating agent is oily aluminum paste powder after degreasing treatment, the bubble stabilizer is triethanolamine, and the retarder is borax.

[0035] Further, the quality of slag described in per cubic meter of alkali slag aerated concrete is 500kg, the quality of water is 238kg, the quality of water glass is 113kg, the dosage of gas generating agent is 0.08% of the quality of slag, and the dosage of air bubble stabilizer It is 0.1% of the mass of slag, and the dosage of retarder is 1.5% of the mass of slag.

[0036] Further, the slag is water-quenched blast furnace slag, the mass percentage of CaO in the slag is 39.7%, SiO 2 The mass percentage is 30.6%, Fe 2 o 3 The mass percentage is 1.62%, Al 2 o 3 The mass percentage of MgO is 13.24%, and the mass percentage of MgO is 4.19%; the alkalinity coeff...

Embodiment 3

[0046] Embodiment 3: an alkali slag air-entrained concrete, including slag, water, water glass, air generating agent, bubble stabilizer and retarder. In this embodiment: the gas generating agent is oily aluminum paste powder after degreasing treatment, the bubble stabilizer is triethanolamine, and the retarder is borax.

[0047] Further, the quality of slag described in per cubic meter of alkali slag aerated concrete is 500kg, the quality of water is 238kg, the quality of water glass is 113kg, the dosage of gas generating agent is 0.12% of the quality of slag, the dosage of air bubble stabilizer It is 0.1% of the mass of slag, and the dosage of retarder is 1.5% of the mass of slag.

[0048] Further, the slag is water-quenched blast furnace slag, the mass percentage of CaO in the slag is 39.7%, SiO 2 The mass percentage is 30.6%, Fe 2 o 3 The mass percentage is 1.62%, Al 2 o 3 The mass percentage of MgO is 13.24%, and the mass percentage of MgO is 4.19%; the alkalinity coe...

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Abstract

The invention discloses alkali slag aerated concrete and a preparation method thereof, belonging to the field of building materials. The alkali slag aerated concrete is prepared from the following rawmaterials: slag, water, water glass, a gas-forming agent, a bubble stabilizer and a retarder. The alkali slag aerated concrete developed by the invention is excellent in macroscopic property, relatively light in volume weight and good in thermal insulation property. The aerated concrete is developed by adopting alkali slag cement, so the aerated concrete has the advantages of energy conservationand environmental protection; meanwhile, a new variety is added for the production of aerated concrete, and the alkali slag aerated concrete is innovative.

Description

technical field [0001] The invention relates to an alkali slag aerated concrete and a preparation method thereof, belonging to the field of building materials. Background technique [0002] Slag is an industrial by-product with a huge annual discharge, and its accumulation and discharge have adverse effects on the environment. Currently, slag is mainly used to produce slag Portland cement or as an external admixture for concrete, and has not been effectively utilized. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an alkali slag aerated concrete and a preparation method thereof, which have excellent performance, good thermal insulation performance, and are green and economical. [0004] The technical scheme adopted in the present invention is: an alkali slag aerated concrete, including slag, water, water glass, an air generating agent, a bubble stabilizer and a setting retarder. [0005] Specifically, the quali...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B28/08
CPCC04B38/02C04B28/08C04B2201/50C04B2201/32C04B22/002C04B12/04C04B22/04C04B24/122C04B24/006
Inventor 牛维宏徐清
Owner KUNMING UNIV OF SCI & TECH
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