Effect on Mechanical Properties of Concrete using Alccofine and Synthetic Fibres

Abstract

Several steps are being implemented to restrict carbon emissions, which harm the environment. Cement production plays an important role in carbon emissions, and there is a need to reduce its usage. Many researchers replaced the cement in concrete with various supplementary cementitious materials, and alccofine is one of the promising materials. Alccofine has been used in varying percentages of 10%, 20%, and 30% to replace the cement. Polypropylene fibres have been used in volume fractions of 0.1%,0.2%, 0.3%, and 0.4% with alccofine concrete mix. The mechanical tests are carried out on the concrete specimens. The average 28-day compressive strength of concrete with 20% alccofine reaches the peak value of 39.94 N/mm², and the concrete mix with 20% alccofine and 0.2% PP fibres has maximum compressive strength and modulus of elasticity of about 43.55 MPa and 25155 MPa, which is greater than the control mix after 28 days of curing. The addition of alccofine and polypropylene improves the mechanical behavior of the concrete mix.