硅酸盐通报2024，Vol.43Issue(5)：1897-1905,9.
粉煤灰陶粒轻质混凝土声屏障性能试验研究
Experimental Study on Sound Barrier Performance of Fly Ash Ceramsite Lightweight Concrete
摘要
Abstract
Concrete is a widely used building material that can be prepared using a variety of solid waste.In this study,fly ash ceramsite was used as lightweight aggregate,and cement-fly ash-silica fume-coal metakaolin was used as composite cementitious material to prepare fly ash ceramsite lightweight concrete for sound barrier.The mechanical properties,sound absorption performance and carbonation resistance of fly ash ceramsite lightweight concrete were studied.The results show that when the total content of fly ash-silica fume-coal metakaolin is 10％of total mass of cementitious materials,the mechanical properties and carbonation resistance of samples are improved,and the sound absorption performance is reduced.With the further increase of fly ash-silica fume-coal metakaolin content,the mechanical properties and carbonation resistance of samples decrease,and sound absorption performance increases.The sound absorption coefficient changes little at 1 500 Hz and below,and the sound absorption effect is the best at 2 000 Hz.The average sound absorption coefficient of sample is 0.44～0.58,and the noise reduction coefficient is 0.74～0.89.关键词
粉煤灰陶粒/轻质混凝土/力学性能/吸声系数/降噪系数/抗碳化Key words
fly ash ceramsite/lightweight concrete/mechanical property/sound absorption coefficient/noise reduction coefficient/carbonation resistance分类
建筑与水利引用本文复制引用
庚利民,杜红秀,聂小青,周星宇,闫常昊,雷一彬..粉煤灰陶粒轻质混凝土声屏障性能试验研究[J].硅酸盐通报,2024,43(5):1897-1905,9.基金项目
横向科研课题(RH2100004970) （RH2100004970）
