粉煤灰水泥硬化浆体微结构的交流阻抗研究  

Study on the Microstructure of Fly Ash-Cement Paste by Alternating Current Impedance Spectroscopy

作　　者：姚玉梅[1] 施惠生[1] 施韬[1] 

机构地区：[1]同济大学先进土木工程材料教育部重点实验室,上海200092

出　　处：《粉煤灰综合利用》2006年第6期3-5,共3页Fly Ash Comprehensive Utilization

基　　金：国家重点基础研究发展规划(973)项目(2001CB610705)

摘　　要：采用交流阻抗方法对掺有粉煤灰的水泥硬化浆体的微结构及对不同龄期粉煤灰水泥硬化浆体的交流阻抗参数和硬化水泥浆体微结构的关系、抗压强度进行了研究,并与纯硅酸盐水泥体系进行了比较。结果表明,与纯硅酸盐水泥相比,粉煤灰水泥水化后期的水化程度较高,浆体总孔隙率较低。In this paper, the microstructure of hardened fly ash-cement paste is studied by Alternating Current （A. C. ） impedance spectroscopy. The relationship between the parameters of A.C. impedance spectroscopy and the microstructure of hardened cement pastes is analyzed, and the compressive strength is also studied, and the differences in Alternating Current response between fly ash-cement paste and pure Portland cement paste are discussed. The results show that the degree of hydration of fly ash-cement paste is higher and the porosity is lower than pure Portland cement paste in late ages.

关 键 词：交流阻抗谱 硬化水泥浆体 微结构 粉煤灰水泥 

分 类 号：TQ172.715[化学工程—水泥工业]