Microstructural variation of hardened cement-fly ash pastes leached by soft water

查看全文 作　　者：LI Xiang & YAN PeiYu* Department of Civil Engineering, Tsinghua University, Beijing 100084, China

出　　处：《Science China(Technological Sciences)》索引2010年第53卷第11期,共6页

基　　金：supported by the National Basic Research Program ('973' Project) (Grant No 2009CB623106);the Key Project of Beijing Natu-ral Science Foundation (Grant No 8100001) 摘　　要：The microstructural variations of hardened cement-fly ash pastes leached by soft water were investigated by MIP, XRD, TG and SEM. The results show that the mass of hardened cement-fly ash paste reduces and its microstructure deteriorates partly after leaching of soft water. At the leaching duration of 180 days, the hardened paste containing fly ash deteriorated a little more serious than the plain cement paste, but the incorporation of fly ash in a proper ratio was helpful to defer the trend of deterioration of the hardened paste microstructure. The microstructural stability of hardened cement-fly ash paste wasn’t damaged severely during the 180 days leaching duration. 关键词：CEMENT FLY ASH LEACHING microstructure calcium HYDROXIDE

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Microstructural variation of hardened cement-fly ash pastes leached by soft water

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