Optimizing Self-Compacting And Self-Curing Properties In Lightweight Aggregates.

The construction industry has seen innovations in concrete using materials like chemical admixtures, mineral admixtures, and eco-friendly binders to improve quality. Self-compacting and self-curing concrete (SCSCC) is crucial for better strength, durability, and surface finish, especially in reinforced structures where traditional compaction methods are laborintensive and time-consuming. This study explores SCSCC using Light Expanded Clay Aggregate (LECA) and Fly Ash Aggregate (FAA) as self-curing agents, replacing fine aggregate in 0-25% intervals. The workability and mechanical properties of SCSCC were tested, showing that mixes with up to 15% LECA and FAA met EFNARC standards for selfcompacting concrete. The SCSCC mixes outperformed conventional mixes in terms of compressive strength, split tensile strength, modulus of elasticity, and durability (e.g., resistance to chloride, corrosion, and acid). The best-performing mix was F15 (15% FAA), followed by L15 (15% LECA) and F15L5. The enhanced pozzolanic reaction between fly ash and cement contributed to improved mechanical and durability characteristics. [ABSTRACT FROM AUTHOR]