Improvement of the properties of a mortar with 5% of kaolin fillers in sand combined with metakaolin, brick waste and glass powder in cement

This experimental work focused on the study of the possibility of using kaolin dust (K) as filler in sand combined with additions of glass powder (GP), brick waste (BW) and metakaolin (MK) in order to improve the mechanical performance of the mortar as well as its durability in a sulphatic medium. The properties studied are compressive strength, bending tensile strength, porosity, water absorption and sulphate resistance. The incorporation of filler into the sand and the additions in the cement made it possible to obtain mortars possessing physico-mechanical properties and durability which are at least superior to that of the reference mortar. Mixtures containing glass powder (GP) and / or metakaolin (MK) are better than those containing brick waste (BW). (C) 2017 Elsevier Ltd. All rights reserved.