Setting time and compressive strength studies on aluminosilicate wasteglass admixtured cement treated with different water

Abstract

The concrete industry is one of the largest consumers of natural resources due to which sustainability of concrete industry is under threat. The environmental and economics concern is the biggest challenge the concrete industry is facing. The global cement industry contributes about 7% of greenhouse gases emission in to the earth’s atmosphere. Today many researchers are ongoing in the use of supplementary cementitious materials using many waste materials like Pulverized Fly Ash (PFA) and Ground Granulated Blast Furnace Slag (GGBS). Like PFA & GGBS a waste glass powder also act as a filler material in partial replacement of cement which takes some part of reaction at the time of hydration. The utilization of waste glass in construction has attracted a lot of interest worldwide due to the large quantity consumptions and widespread construction sites. The objective of this study indicates the hydration of ordinary Portland cement in the presence of 0%, 10%, 20% and 30 wt% waste glass was studied at distilled water, seawater and groundwater by determining the setting time, and compressive strength measurements. The cubes were tested at the age of 3 days,  2 weeks, 4 weeks to study the development of compressive strength. Results indicated that compressive strength increases with increasing replacement percentages (0%, 10%, 20% and 30 wt%) of waste glass. All the experimental results indicate that seawater accelerates the cement hydration at early stage, but retarded the later stage of hydration.