掺入稻壳灰的泡沫混凝土及其发展分析

本文先介绍了泡沫混凝土的发展、性能与应用,然后介绍了稻壳灰的性质,稻壳灰中含有90%左右的无定形态的二氧化硅,具有火山灰活性;接着讨论了稻壳灰替代部分水泥对泡沫混凝土性质的影响。稻壳灰可增强泡沫混凝土的后期强度和抗渗、耐侵蚀性,改善泡沫混凝土的孔隙结构,增强保温隔热、隔音性。最后对掺入稻壳灰的泡沫混凝土的发展方向进行了分析,包括选择和处理材料如发泡剂、稻壳灰、水泥等;优化生产工艺;降低成本及减小环境影响。

Foam Concrete Mixed with Rice Husk Ash and its Development Analysis

This paper firstly introduced the development, performance and application of foam concrete. Secondly the property of rice husk ash （ RHA） was discussed. RHA contains about 90% amorphous silica which has high pozzolanic activity. Thirdly the effect of RHA on foam concrete was discussed. RHA can enhance the strength of foam concrete in later age and improve its durability, homogeneity and corrosion resistance. It also improves the pore structure of foam concrete, thermal insulation and sound absorption performance. Lastly, the development of foam concrete mixed with RHA was analyzed from following aspects： selecting and processing materials such as foaming agents, RHA and cement, improving producing process of foam concrete, reducing cost and environmental impact.