EXPERIMENTAL INVESTIGATION ON MECHANICAL PROPERTIES OF RECRON 3S FIBER REINFORCED HYPOSLUDGE CONCRETE

Concrete plays a vital role as a construction material in the world. In the present scenario, waste materials from various industries and admixtures are added to the mix. Over 400 million tones of waste materials are being produced by various industries every year. Hyposludge is the waste material from paper industry that has some chemical properties similar to that of cement. Hence it can be used as an economical building cementitious material thus reducing the disposal and air pollution problems caused by the paper industry. Recron-3s is a polypropylene monofilament, discrete, discontinuous short fiber that can be used in concrete to control and arrest cracks. During the present study, an attempt is made to study the various mechanical properties of concrete containing hyposludge and Recron 3s fibres. Hyposludge was used as a replacement to cement. Replacement percentages used during the present study were 10%, 20%, 30%, 40%, 50%. For each replacement percentage of cement with hyposludge, 0.2%, 0.3%, 0.4% of Recron 3s fibres were added and specimens were cast to determine the mechanical properties. Compressive strengths of cubes were found on the 28th day. The 28 th day split tensile strength of the specimens was found on the cylinders. The flexural strength of the specimens was found on the 28 th day. It is found that addition of hyposludge and Recron 3s fibres have beneficial effects on the mechanical properties of concrete.