jismart2023045: Early Strength of High GGBS Cement with Seeding Additive

Abstract

The construction industry heavily relies on concrete, a widely used material for building structures. However, the production of its primary component, OPC, significantly contributes to environmental issues. In response to these concerns, SCMs like Ground Granulated Blast-furnace Slag (GGBS) and Silica Fume (SF) are introduced as partial replacements for cement in high-strength mortar. GGBS is an iron manufacturing by product that can improve workability and strength, reduces permeability and lowers the heat of hydration. SF, originating from the ferrosilicon industry, enhances strength and fills voids in mortar. 2 additives, Supleplasticiser (SP) and strength-enhancing admixture (X-Seed), improve workability and enhance the early strength of the mortar. The specimen with X-seed (XG50-5 and XG60-5) shows improvement in compressive and flexural strength at 7 days, highlighting its ability to enhance early-age strength. GGBS with a slower pozzolanic reaction requires more time to achieve higher strength, giving x-seed a chance to improve late-age strength. This study demonstrates the potential of GGBS, SF and X-Seed as environmentally friendly alternatives in the construction industry, improving concrete properties while reducing the environmental impact of cement production.