Published Paper Details:

The present study investigates the effect of sodium hydroxide (NaOH) addition on the strength and durability characteristics of concrete and compares its performance with conventional concrete prepared using water. Concrete specimens of M30 grade were produced by incorporating NaOH in controlled proportions, while conventional concrete without NaOH served as the reference mix. Mechanical properties such as compressive strength, split tensile strength, and flexural strength were evaluated at curing ages of 7, 14, and 28 days under standard water curing conditions. Durability characteristics including water absorption, acid resistance, and alkaline resistance were also examined. The experimental results indicate that the addition of NaOH enhances both strength and durability properties of concrete, attributed to improved hydration reactions and densification of the concrete microstructure. The study demonstrates that NaOH-modified concrete can offer improved performance compared to conventional concrete, making it a potential option for enhanced durability applications.