曹明莉Mingli Cao

(教授)

 博士生导师  硕士生导师
学位:博士
性别:女
毕业院校:大连理工大学
所在单位:土木工程系
电子邮箱:minglic@dlut.edu.cn

论文成果

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Experimental Study on the Pumice Aggregate Concrete

发表时间:2019-03-11 点击次数:

论文名称:Experimental Study on the Pumice Aggregate Concrete
论文类型:会议论文
收录刊物:EI、CPCI-S、Scopus
卷号:743-744
页面范围:329-333
关键字:Pumice; Aggregate strengthening; Pumice concrete
摘要:Pumice is a kind of natutal lightweight aggregate with well-developed porosity and moderate-intensity. Amorphous Si-Al oxide is its main mineral composition. This paper focused on the performance and features of the pumice pozzolan and aggregate firstly. Then a kind of pumice concretes was prepared with the ordinary Portland cement, ordinary sand and strengthened coarse pumice aggregates. And its mechanical properties, durability, insulation and absorbing performance were investigated. The result showed that the compressive strength of pumice concrete was 20MPa, anti-freezing durability was more than 100 freeze-thaw cycles, electric flux within 6 hours was 1749C, thermal conductivity coefficient was 0.318W/ m.K., and the electromagnetic wave absorption was-5dB ranging from 8 to 18GHz. The results indicated that the pumice concrete could be developed as the green and multi-functional concrete materials in the future.
发表时间:2012-07-13