High-strength lightweight concrete building block and method of manufacture

A lightweight concrete and manufacturing method technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of difficult control of product quality, large shrinkage rate of products, easy cracking of masonry, etc., and achieve improvement The overall quality of the masonry, uniform quality, and the effect of reducing production costs

Inactive Publication Date: 2006-07-26
绍兴上虞科元自保温墙体材料有限公司 +1
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Problems solved by technology

However, the patented process is complicated, the cost is high, the quality of the product is di

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Embodiment Construction

[0016] A lightweight concrete block, which contains cement, fly ash, air-entraining agent, light coarse aggregate, water-reducing agent, and shrinkage-reducing agent. The weight ratio of the cement is 10%-30%, the weight ratio of the air-entraining agent is 0.1%-0.5%, the weight ratio of the light coarse aggregate is 30%-70%, and the water reducer is 0.25%-1.5% of the cement weight, the shrinkage reducing agent is 0.25%-1.5% of the cement weight, and the rest is fly ash. The light coarse aggregate, ceramsite with a particle size greater than 5 mm and an apparent particle density not greater than 800 kg / m3, can be fly ash ceramsite or natural coal gangue or expanded slag or shale ceramsite or clay ceramsite or dirt Clay ceramsite.

[0017] The manufacturing method of the concrete block of the present invention: the cement, fly ash, water reducing agent, shrinkage reducing agent and water are metered and sent to the mixer, the air-entraining agent is mechanically foamed and the...

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Abstract

The invention discloses lightweight concrete building blocks, which comprise (by weight ratio) cement 10-30 wt%, air-entrainer 0.1-0.5 wt%, the amount of the water reducer is 0.25-1.5 wt% of the cement, the amount of the decrement agent is 0.25-1.5 wt% of the cement, the weight ratio of coarse aggregate is 30-70%, and balancing coal ash. The invention also discloses its preparing process.

Description

technical field [0001] The invention relates to a building material and a manufacturing method thereof, in particular to a high-strength lightweight concrete block and a manufacturing method thereof. Background technique [0002] With the improvement of people's awareness of the environment and resources and the country's wall reform policy, especially the requirements of building energy conservation, lightweight concrete products have widely replaced traditional clay solid bricks and solid concrete products. Lightweight concrete products not only do not produce waste water, waste gas and other pollutants in the production process; the main raw materials are solid industrial waste; and have the characteristics of light weight, good thermal insulation performance, sound insulation and noise reduction, and good fire resistance. , The priority industry during the "Eleventh Five-Year Plan" period. [0003] The basic raw materials of lightweight concrete are cement, lime, water,...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/08C04B14/04
CPCY02W30/91
Inventor 夏青钱晓倩成建耀詹树林郑治平
Owner 绍兴上虞科元自保温墙体材料有限公司
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