Effect of fiber and aggregate size on mode-I fracture parameters of high strength concrete

Ch Naga, Satish Kumar, P Krishna, D Rohini Kumar
2017 Advances in Concrete Construction   unpublished
In this paper, an experimental investigation was carried out to study the effect of volume fraction of fiber and maximum aggregate size on mode-I fracture parameters of high strength concrete. Total of 108 beams were tested on loading frame with three point loading, the variables in the high strength concrete beams are aggregate size (20 mm, 16 mm and 10 mm) and volume fraction of fibers (0%, 0.5%, 1% and 1.5%). The fracture parameters like fracture energy, brittleness number and fracture
more » ... and fracture process zone were analyzed by the size effect method (SEM). It was found that fracture energy (Gf) increases with increasing the Maximum aggregate size and also increasing the volume of fibers, brittleness number (β) decreases and fracture process zone (CF) increases.
fatcat:qsjjbvxunrefhl5rfbrhni7mzq