Effect of Calcium Aluminate Cement Variety on the Hydration of Portland Cement in Blended System

被引：17

作者：

Xu Linglin ^{[1
,2
]}

Wang Peiming ^{[1
,2
]}

De Schutter, Geert ^{[3
]}

Wu Guangming ^{[1
,2
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China

[2] Tongji Univ, Key Lab Adv Civil Engn Mat, Minist Educ, Shanghai 201804, Peoples R China

[3] Univ Ghent, Fac Engn, Magnel Lab Concrete Res, B-9000 Ghent, Belgium

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2014年 / 29卷 / 04期

关键词：

calcium aluminate cement; Portland cement; hydration; delay; monocalcium aluminate(CA); SULFATE; CALORIMETRY;

D O I：

10.1007/s11595-014-0991-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two kinds of CACs with different monocalcium aluminate (CA) contents were used in the PC/CAC (PAC) mixtures. Effects of CA and CACs on the properties of PAC were analyzed by setting times and the compressive strength tests, and also by means of calorimetry, XRD, DTA-TG and ESEM. The experimental results show that the compressive strength of the PAC mortars decreases with increasing content of CAC while it declines sharply with a higher content of CA in CAC. Compared with neat PC paste, the content of calcium hydroxide in hydrates of PAC paste decreases significantly, and the hydration time of PC is prominently prolonged. Additionally, the higher the content of CA in CAC, the more obviously the hydration of PC is delayed, confirming that the CA phase in CAC plays an important role in the delay of PC hydration.

引用

页码：751 / 756

页数：6

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