DETERMINATION OF FRACTURE PARAMETERS AND THE STUDY OF MIXED MODE CRACK PROPAGATION IN HIGH PERFORMANCE CONCRETE

In th e paper an experime n tal i n ve s tigation was carri ed out to study the Mixed Mode Crack Parameters of High Performance Concrete beams subjected to three point bending . The cubes and cylinders will be tested on Universal Testing Machine to find out the Compressive strength and split tensile strength. For High Performance Concrete, the partial replacement of cement with Grou nd Granulated Blast Furnace Slag (GGBS) and sand with the ROBO sand (crusher dust) will be taken. In this investigation the study of Mixed Mode Crack Propagation in High Performance Concrete b eams with eccentrically placed notch at a distance (L/4) from mi d span of the beam under a three point bending test i.e., with a central point load will be done. In High Performance Concrete , the Variation of volume fraction s of Ground Granulated Blast furnace Slag (GGBS) and ROBO sand in the casting of beams will carr ied out to find the Mixed Mode Fracture Parameters . Fracture parameters like Fracture energy G f , Cohesive fracture process Zone C F , Stress intensity factor K I would be determined by using size effect method.