EXPERIMENTAL STUDIES OF COMPACTING IN CONCRETE USING STEEL FIBER

Conventional concrete tends to present a problem with regard to adequate compaction in this sections or areas of congested reinforcement, which leads to a large volume of entrapped air voids and compromises the strength and durability of the concrete. It is proposed to use of fine materials in the fresh concrete M30 grade such as fly ash (40% replacement of cement), super-plasticizer (viscocrete – 1%) and viscosity modifying agent (stabilizer 4R – 0.2%) and studied the concrete properties of self-compacting concrete. Self-compacting concrete with steel fiber compressive and flexural strength was more than M30 grade concrete with 1.0% of steel fiber have 45.24 N/mm² which is about 16.69% more than M30 grade control concrete without steel fiber and flexural strength of self-compacting concrete with 1.5% of steel fiber have 27.45 N/mm² which is about 2.66% more than OCC with 1.5% of steel fiber.