Article ID Journal Published Year Pages File Type
6725740 Construction and Building Materials 2013 6 Pages PDF
Abstract
Delayed Ettringite Formation (DEF) is an internal sulfate attack caused by early age heating to a temperature of over 70 °C. In this paper, the effect of natural Algerian pozzolan on the expansion of cement mortars caused by DEF was investigated. For this purpose, a portion of cement was replaced by natural pozzolan, with three different dosages (10%, 20% and 30%) and finenesses (fine, medium, and coarse). The results obtained highlighted the significant effects of natural pozzolan on DEF and the correlation existing between the expansion of the heat-cured mortars and the evolution of their mechanical properties.
Related Topics
Physical Sciences and Engineering Engineering Civil and Structural Engineering
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