EFFECT OF MAXIMUM SIZE OF AGGREGATE AND ITS GRADATION ON THE SHEAR CAPACITY OF R.C BEAMS WITHOUT WEB REINFORCEMENT

A total number of eighteen reinforced concrete beams without web reinforcement were tested primarily to know the variation of shear capacity of reinforced concrete beams by changing maximum size and gradation of coarse aggregates.It was observed that shear strength varies much with change in gradation than change in size of aggregate i.e. surface area of aggregates. In fact shear strength increases more with improvement in gradation i.e. gradation which would produce a dense concrete than increase in size of coarse aggregates