Preparation method of lightweight porous wheat straw concrete panels

Abstract

The invention discloses a preparation method of lightweight porous wheat straw concrete panels, and belongs to the field of cement concrete panel preparation. According to the preparation method, straw fiber is adopted to replace traditional chemical fiber, a mechanical physical stirring foaming agent is adopted for foaming, and foam and fiber are uniformly dispersed in concrete panels. The preparation method comprises following steps: a high speed mechanical stirring foaming agent and water are used for inducing foam for further using; a gel material, quartz sand, mixing water, and a specially prepared water reducer are stirred for uniform mixing, then the foam and wheat straw fiber are added for high speed mixing; after concrete preparation, the obtained mixture is introduced into a panel mould for slight vibration; after surface smoothing and leveling, the mould is introduced into a curing chamber for standard curing, and demoulding is carried out 24h later. The lightweight porous wheat straw concrete panels are light in weight, smooth and defect-free in surfaces, and are green environment-friendly decoration materials that can be used widely.

Description

technical field [0001] The invention relates to a preparation method of cement concrete slabs, in particular to a preparation method of lightweight porous cavity wheat straw concrete slabs. Background technique [0002] China is a large agricultural country and one of the countries with the most abundant straw resources. According to incomplete statistics, nearly 700 million tons of straw are produced every year, including 120 million tons of wheat straw. With the increase of crop yield, the output of straw will also increase. . Crop straw is a by-product of agricultural production and a renewable biomass resource. It has significant advantages such as wide sources, low pollution, and high calorific value. It used to be the main livestock feed and living fuel in rural my country. Due to the improvement of rural living standards and changes in production methods, the use of straw is limited by collection methods, utilization technologies, and transportation costs. At present...

AI Technical Summary

Problems solved by technology

Due to the improvement of rural living standards and changes in production methods, the use of straw is limited by collection methods, utilization technologies, and transportation costs. At present, the excess straw is mainly disposed of by field incineration and disposal, resulting in environmental pollution and waste of resources. There are hidden dangers of fire and traffic accidents, and at the same time, it will destroy the ability of soil to resist drought and keep moisture

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