Fe-57 Mossbauer study of cement water-degradation

被引:9
作者
Faucon, P
Bonville, P
Adenot, F
GenandRiondet, N
Jacquinot, JF
Virlet, J
机构
[1] CEA,SERV CHIM MOL,CTR SACLAY,F-91191 GIF SUR YVETTE,FRANCE
[2] CEA,SERV ENTREPOSAGE & STOCKAGE DECHETS,CTR SACLAY,F-91191 GIF SUR YVETTE,FRANCE
关键词
D O I
10.1680/adcr.1997.9.35.99
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The structural evolution of iron during cement paste degradation is studied An increased concentration of iron has been observed in the surface layer formed when cement paste comes into contact with an aggressive solution. While C(4)AF and C-3(A, F)SH4 are little affected by leaching, the calcium silicate hydrates (CSH) become richer in trivalent iron on the surface. The latter replaces the labile and non-labile calcium of the structure, the labile form being predominant.
引用
收藏
页码:99 / 104
页数:6
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