粉煤灰陶粒轻质混凝土声屏障性能试验研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (5): 1897-1905.

所属专题：资源综合利用

粉煤灰陶粒轻质混凝土声屏障性能试验研究

庚利民¹, 杜红秀¹, 聂小青², 周星宇¹, 闫常昊¹, 雷一彬³

1.太原理工大学土木工程学院,太原 030024;
2.山西省建筑科学研究院集团有限公司,太原 030024;
3.太原理工大学建筑学院,太原 030024

收稿日期:2023-10-17 修订日期:2023-12-29 出版日期:2024-05-15 发布日期:2024-06-06
通信作者: 杜红秀,博士,教授。E-mail:tydhx@163.com
作者简介:庚利民(1999—),男,硕士研究生。主要从事混凝土材料及性能的研究。E-mail:glm15933827001@163.com
基金资助:
横向科研课题(RH2100004970)

Experimental Study on Sound Barrier Performance of Fly Ash Ceramsite Lightweight Concrete

GENG Limin¹, DU Hongxiu¹, NIE Xiaoqing², ZHOU Xingyu¹, YAN Changhao¹, LEI Yibin³

1. School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
2. Shanxi Institute of Building Research Group Co., Ltd., Taiyuan 030024, China;
3. School of Architecture, Taiyuan University of Technology, Taiyuan 030024, China

Received:2023-10-17 Revised:2023-12-29 Online:2024-05-15 Published:2024-06-06

摘要/Abstract

摘要： 混凝土是一种应用广泛、可使用多种固废制备的建筑材料。本研究将粉煤灰陶粒作为轻骨料,水泥-粉煤灰-硅灰-煤系偏高岭土作为复合胶凝材料,制备用作声屏障的粉煤灰陶粒轻质混凝土,并对其力学性能、吸声性能和抗碳化性能进行试验研究。结果表明:当粉煤灰-硅灰-煤系偏高岭土总掺量为胶凝材料总质量的10%时,试样的力学性能、抗碳化性能有所提高,吸声性能有所降低;随着粉煤灰-硅灰-煤系偏高岭土掺量进一步增加,试样的力学性能、抗碳化性能有所降低,吸声性能有所提高。1 500 Hz及以下频率吸声系数变化幅度较小,2 000 Hz时吸声效果最好,试样的平均吸声系数在0.44~0.58,降噪系数在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

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.

Key words: fly ash ceramsite, lightweight concrete, mechanical property, sound absorption coefficient, noise reduction coefficient, carbonation resistance

中图分类号:

TU55⁺2

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.

GENG Limin, DU Hongxiu, NIE Xiaoqing, ZHOU Xingyu, YAN Changhao, LEI Yibin. Experimental Study on Sound Barrier Performance of Fly Ash Ceramsite Lightweight Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(5): 1897-1905.

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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

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