An experimental investigation on strength properties and flexural behaviour of ternary blended concrete

Abstract

Depletion of natural resource materials has resulted from an increase in the consumption of component materials in the manufacturing of concrete. Recycling is the most effective method for dealing with the effective management of waste for preservation of the environment. Recently researchers are being conducted to utilize industrial waste by product as an admixture in the concrete production. In this study silica flour which is a waste from silica industry and waste glass powder from glass industry used for the replacement of cement. The concrete mixes were cast with replacement level such as 20%, 30% for OPC in this study. The target compressive strength of 40 MPa for the grade of M40 Concrete and specimens were casted such as cubes and beams and tested after the completion of curing to find the characteristic compressive strength and flexural behavior of beams. The compressive strength at the age of 7,14 and 28 days of curing were determined in the Compressive Testing Machine of 2000kN capacity and the results were compared and also discussions are presented on the trend of strength gain for such Ternary Blend Concrete (TBC) mixes. The RC Beams were tested in the loading frame of 500 kN Capacity and the results obtained from the testing of beam, the load versus deflection pattern were drawn and compared for various beams cast with different TBC mixes. The ductility index of the beam was calculated from load versus deflection curve. The results obtained from the investigation compared with the test specimens cast with normal concrete tested in the laboratory. From the result it is found that the TBC shall be an alternative to the conventional cement concrete and found well suitable for structural applications.