Influence of MK on the reaction kinetics in MK/lime and MK-blended cement systems at 20°C

被引：131

作者：

Frías, M ^{[1
]}

Cabrera, J ^{[1
]}

机构：

[1] Univ Leeds, Sch Civil Engn, Civil Engn Mat Unit, Leeds LS2 9JT, W Yorkshire, England

来源：

CEMENT AND CONCRETE RESEARCH | 2001年 / 31卷 / 04期

关键词：

metakaolin; lime; blended cement; hydrated phases;

D O I：

10.1016/S0008-8846(00)00465-8

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Metakaolin (MK)/lime and MK-blended cement pastes are studied in samples stored and cured at 20 degreesC and up to 360 days of hydration. The nature of the reaction products and their sequence of appearance are obtained from differential thermal analysis (DTA) and X-ray diffraction (XRD) techniques. The results show a different behavior of the pozzolanic reaction in both pastes. XRD data reveal the absence of crystalline phases in MK-blended cements up to 360 days of curing. MK shows high pozzolanic activity, which provides the quick formation of CSH, C(2)ASH(8) (stratlingite), and C(4)AH(13) in MK/lime systems. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：519 / 527

页数：9

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