Differential scanning calorimetry study of ordinary Portland cement

被引：220

作者：

Sha, W ^{[1
]}

O'Neill, EA ^{[1
]}

Guo, Z ^{[1
]}

机构：

[1] Queens Univ Belfast, Sch Civil Engn, Belfast BT7 1NN, Antrim, North Ireland

来源：

CEMENT AND CONCRETE RESEARCH | 1999年 / 29卷 / 09期

关键词：

hydration; characterisation; hydration products; thermal analysis; cement paste;

D O I：

10.1016/S0008-8846(99)00128-3

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The present work involves using differential scanning calorimeter (DSC) in an investigation of the thermal behaviour of hydration products in ordinary Portland cement as a function of age. The two-step loss of water from calcium silicate hydrate, dehydroxylation of calcium hydroxide, and decarbonation of calcium carbonate contribute respectively to the three major endothermic peaks in the DSC curves. Peaks due to the formation of ettringite and iron-substituted ettringite, C(4)AH(13) and Fe2O3 solid solution, were also found. Some DSC observations were supplemented by X-ray diffraction analysis. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1487 / 1489

页数：3

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