A Study on Mechanical Properties of Self-compacting Concrete using Fly Ash and Ground Granulated Blast Furnace Slag (GGBS)

Abstract

Self-compacting concrete (SCC) has gained significant attention in recent years due to its ability to flow and fill formwork without the need for vibration, thus enhancing construction efficiency. This study investigates the mechanical properties of SCC incorporating fly ash (FA) and ground granulated blast furnace slag (GGBS) as partial replacements for cement. The experimental program encompasses a comprehensive evaluation of fresh properties, including workability and flowability, as well as hardened properties such as compressive strength, tensile strength, and flexural strength. Mixtures with varying proportions of FA and GGBS are investigated to assess their influence on the performance of SCC. The results indicate that the incorporation of FA and GGBS positively impacts the workability and mechanical strength of SCC, leading to sustainable and durable concrete structures. This research contributes valuable insights into the optimization of SCC formulations with supplementary cementitious materials, offering potential benefits for both construction industry practices and environmental sustainability.