Use of glass aggregates as a partial sand replacement: Effects on mortar performance

Abstract

The present study consists in verifying the effect of the partial replacement of alluvial sand by glass aggregates on the performance of mortar. For that, a series of mechanical tests (compression and bending) and an examination of the pozzolanic activity were carried out on samples of prismatic shapes (40x40x160 mm³) of three types of mortar: (i) control mortar (cement + alluvial sand + mixing water); (ii) type 1 mortar (AV10) (cement + “90% alluvial sand + 10% glass aggregate” + water); and (iii) type 2 mortar (AV20) (cement + “80% alluvial sand + 20% glass aggregate” + water). The obtained results show that the presence of glass aggregates as a partial replacement for alluvial sand increases the performance of the mortar for an age of 28 days, in particular for the case of AV20.