Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6725740 | Construction and Building Materials | 2013 | 6 Pages |
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
Authors
Van-Huong Nguyen, Nordine Leklou, Jean-Emmanuel Aubert, Pierre Mounanga,