Experimental Studies on Durability and Mechanical Characteristics of Concrete using POFA and SCBA hybridization

ABSTRACT The majority of the world’s waste does not go through the recycling process. Moreover, in the suburbs, waste growth and disposal impose a significant risk to the environment. Two distinct waste materials, such as palm oil fuel ash (POFA) and sugar cane bagasse ash (SCBA), are used as basic materials in this research, with weight fractions of 0%, 5.0%, 10.0%, 15.0%, 20.0%, and 25.0%, respectively, to substitute for grade 50 MPa concrete. Mechanical properties such as flexural strength, tensile and compressive strength of hybrid reinforced blended concrete were examined in the primary phase at 28 days of age. The study proposed an alternative mixture for each hybrid fibre combination. The durable properties such as sorptivity, saturated water absorption, acid resistance, and sulphate resistance of quaternary blended concrete with optimum hybrid materials were studied in the secondary phase. From the experimental investigation, mechanical properties are enhanced, and higher compressive and flexural strength are achieved as 64 MPa and 7.93 MPa in addition to 20% POFA and SCBA particles. The durable properties of quaternary blended concrete are enhanced properties due to the addition of hybrid materials.