The effects of waste glass cullets and nanosilica on the long-term properties of cement mortars

• Main Authors: Skoczylas Katarzyna, Rucińska Teresa
• Format: Article
• Language: English
• Published: EDP Sciences 2018-01-01
• Series: E3S Web of Conferences
• Online Access: https://doi.org/10.1051/e3sconf/20184900102

This study presents experimental results on the effects of nanosilica and waste glass cullets on the long-term mechanical properties and durability of cement mortars. Three groups of cement mortars were prepared, where natural aggregate was replaced in 0% (R), 50% (RWG) and 100% (WG) with waste glass cullets by volume. Each group was modified with the nanosilica admixture by 0%, 1% and 3% by the weight of cement. Furthermore, superplasticizer was incorporated in order to improve the workability of mortars. Subsequently to the preparation and curing of specimens, mechanical properties after 7, 28 and 365 days, freeze-thaw resistance, adhesive strength, abrasion resistance, and drying shrinkage (in two types of curing conditions) were evaluated. The results confirmed the applicability of waste glass in the construction industry as well as the beneficial effect of nanosilica on the mechanical properties of mortars.