Evaluation of Relation between Split Tensile and Compressive Strength of OPC Concrete

Present study was carried out to determine the compressive strength characteristics of concrete (M40) containing flyash and silica fume with superplasticizer. The objectives were to study the effect of combined use of flyash and silica fume with superplasticizer on compressive and split tensile strength of concrete. The water cement ratios in all mixes were kept 0.32. After curing, the specimens were tested after 3, 7, and 28 days for getting the value of compressive and split tensile strength. The relation between compressive and split tensile strength has been developed and the value of R² is 0.938. The derived relationship of current study was compared with the relationship developed from four other authors. It is found that derived relationship of current study is in good agreement with the relationship derived by Oluokun et al. i.e. f_sts= 0.294f_c^0.69.