Advancing sustainability in concrete construction: enhancing thermal resilience and structural strength with ground granulated blast furnace slag

This study investigates the effects of Ground Granulated Blast Furnace Slag (GGBS) on the thermal stability and compressive strength of concrete, aiming to identify novel insights and contribute to sustainable construction practices. The experimental approach integrates innovative methodologies to analyse concrete properties and assess the suitability of GGBS as a supplementary cementitious material. Through meticulous sample preparation and testing, a nuanced relationship between GGBS content and concrete performance is observed. Key findings reveal that moderate levels of GGBS replacement enhance compressive strength, supporting previous research. However, beyond a certain threshold, diminishing returns are observed, highlighting the importance of optimizing GGBS content in concrete mix designs. Microstructural analysis unveils reductions in porosity and alterations in hydration products with increasing GGBS content, indicative of improved mechanical properties and thermal stability. The results underscore the potential of GGBS as a sustainable alternative in concrete production, offering both environmental benefits and performance enhancements. By leveraging GGBS, engineers can achieve a balance between structural integrity, thermal resilience, and environmental sustainability in concrete structures.