Factors affecting early-age hydration of ordinary Portland cement studied by NMR: Fineness, water-to-cement ratio and curing temperature

被引：31
作者：
Alesiani, M. [1 ]
Pirazzoli, I. [1 ]
Maraviglia, B. [1 ,2 ]
机构：
[1] Univ Roma La Sapienza, Ctr Ric Sviluppo, Ist Nazl Fis Mat, Dept Phys,SOFT, I-00185 Rome, Italy
[2] Enrico Fermi Ctr, Rome, Italy
来源：
APPLIED MAGNETIC RESONANCE | 2007年 / 32卷 / 03期
关键词：
D O I：
10.1007/s00723-007-0019-y
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The aim of the present study was to apply nuclear magnetic resonance (NMR) relaxation measurements for understanding the microstructure evolution of cement paste during hydration. Ordinary Portland cement powder was mixed with double-distilled water, and hydration process was analyzed via H-1 proton NMR spin-spin relaxation time. In order to induce strong modification of the rate of hydration, water-to-cement ratio, curing temperature and cement fineness were varied. The evolution of the NMR spin-spin relaxation time, T-2, of hydrating water versus the hydration time was monitored from the very first few minutes after the mixing up to several hours.
引用
收藏
页码：385 / 394
页数：10
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