ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 42, (2) 60 - 66 (1998)


PREPARATION AND PROPERTIES OF LOW HYDRATION HEAT PORTLAND CEMENT
 
El-Didamony Hamdy 1, Amer Ahmed 1, El-Hemaly Soliman 2, El-Alfi Sayed 2
 
1 Faculty of Science, Zagazig University, Zagazig, Egypt
2 National Research Centre, Dokki, Cairo, Egypt

Several types of Portland cement having different characteristics are distinguished. The most important variables are the rate of hardening, the rate and total extent of heat evolution during hydration, and the resistance of hardened cement to chemical attack by sulphate and chloride solutions. The aim of the present work was to prepare three types of Portland cement, namely types I, II and IV, in the laboratory from locally available raw materials, and to study their hydration kinetics, development of compressive strength as well as the aggressive attack of 4 wt.% MgCl₂ solution on hardened pastes of the three Portland cements and of sulphate resisting cement pastes. The results show that the kinetics of hydration and the susceptibility to corrosion by chlorides increase with increasing LSF of the cement.


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