Investigation of Early Cement Paste with 1H Low-Field NMR

被引：3
|
作者：
Sun Zhenping [1 ]
Li Qi [1 ]
Yu Yang [1 ]
Yang Peiqiang [2 ]
机构：
[1] Tongji Univ, Minist Educ, Key Lab Adv Civil Engn Mat, Shanghai 200092, Peoples R China
[2] Shanghai Niumag Corp, Shanghai 200333, Peoples R China
来源：
TESTING AND EVALUATION OF ADVANCED BUILDING MATERIALS | 2013年 / 539卷
基金：
中国国家自然科学基金;
关键词：
Low-field NMR; T2; distribution; specific surface area; hydration; HYDRATING CEMENT; RELAXATION; WATER;
D O I：
10.4028/www.scientific.net/KEM.539.5
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Early cement paste (0h-6h) made with cement of different Blain specific surface area was investigated with 23MHz 1H low-field NMR. T2 distribution, T2 against age and T2 distributions against age were obtain. Results showed: 1) T2 distribution of fresh cement paste made with cement of common Blain specific surface area has two peaks and corresponded to water within flocculation and among flocculation; 2)T2 against age could reflect a stage-like behavior of cement hydration; 3) T2 distributions against age showed evolution of microstructure in early cement paste.
引用
收藏
页码：5 / +
页数：2
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