Experimental analysis of strength and durability properties of quaternary cement binder and mortar

摘要

The aim of this research work is to produce quaternary cement binders and mortars with combination of ordinary Portland cement (OPC) and supplementary cementitious materials (SCMs), such as, fly ash (FA), silica flume (SF), ground granulated blast furnace slag (GGBS), metakaolin (MK) and lime powder (LP) at 30% and 50% replacement levels. Water-binder ratio was kept constant (0.5) for binders and mortars. Normal consistency, setting time, density, water absorption and compressive strength (at ages of 3, 7, 28, 56 and 90 days) tests was carried out on quaternary binders. Compressive strength (at ages of 3, 7, 28, 56 and 90 days) and rapid chloride permeability (RCPT) (at 28 and 90 days), tests were carried out on quaternary cement mortars mixes of 1:3, 1:4, 1:5 and 1:6. The purpose of this investigation was to develop a new quaternary binder which can reduce our dependency on cement. The related combinations of quaternary binders showed better development in compressive strength than control binder. Quaternary mortars with the combinations of GGBS and MK showed better development in compressive strength and permeability than quaternary mortar with combination of lime powder. The overall performance of quaternary binders and mortars are adequate for industrial application. (c) 2016 Elsevier Ltd. All rights reserved.