1Professor of, Civil Engineering, RSR Engineering College, Kadanuthala, Kavali-524 142, Andhra Pradesh, India
2Professor, Structural Engineering Laboratory, Civil Engg. Dept., IIT Madras, Chennai, Tamil Nadu, India
Online published on 15 April, 2016.
The paper presents the results of an experimental investigation which assesses the effect of silica fume and also granite powder on fracture of Steel Fiber Reinforced Concrete under Mode II loading. Tests have been conducted on new notched beam specimens under pure shear (proposed in earlier paper of the authors), The test specimens made from concretes in which partial cement replacement (10%) by 1. silica fume and 2. granite powder were used. The shear strength, shear fracture energy, critical stress intensity factor and toughness indices were calculated and compared. With the silica fume, increase in the values of mechanical and fracture properties was observed whereas, with granite powder decrease in all the values was found.
Fiber Reinforced Concrete, Silica Fume, Granite Powder, Mode II Failure, Shear Strength, Fracture Toughness, Toughness Index
