Durability of binary and ternary cements against alkali-silica reaction of aggregate

Document Type : Research Paper

Author

Buali Sina University

Abstract

In recent years, with regards to the environmental and economic considerations and the importance of sustainable development, it is well understood that part of the cement or clinker must be replaced with other materials such as limestone powder, natural and artificial pozzolans, slag, etc. in this paper, some physical properties and durability of Portland, Portland-pozzolan, Portland-limestone and Portland-composite cements against alkali-silica reaction (ASR) are studied. In order to, experiments were carried out cement paste including normal consistency and time of setting and on cement mortar including accelerated expansion test and compressive strength change of mortar cubes in situations where conditions are favorable for ASR. The results show that durability of cements containing Trass is higher than others and Portland limestone cement (PLC) having up to 10% limestone provides competitive properties with PC concretes. Also, there is significant relation between results obtained by accelerated expansion test and new method used in this study.

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