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29 Si Magic‐Angle‐Spinning Nuclear Magnetic Resonance Study of Hydrated Cement Paste and Mortar
Author(s) -
AlDulaijan Salan U.,
ParryJones Gwilym,
AlTayyib AbdulHamid J.,
AlMana Abdulaziz I.
Publication year - 1990
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1990.tb06582.x
Subject(s) - materials science , compressive strength , composite material , curing (chemistry) , cement , portland cement , mortar , magic angle spinning , spinning , nuclear magnetic resonance , nuclear magnetic resonance spectroscopy , physics
This paper presents 29 Si magic‐angle‐spinning nuclear magnetic resonance measurements that trace the cement hydration process in cement paste and mortar specimens made from ordinary portland cement, type I. These specimens were moist‐cured for 3, 7, 14, and 28/31 d at temperatures ranging from 21° to 80°C. Compressive strength for all tested specimens was also determined. The results show that the degree of hydration ( Q 1 + Q 2 ) and the compressive strength increase with curing times and temperatures. However, at 80°C, the compressive strength decreases while the degree of hydration increases.