Interface Debonding in Fiber Reinforced Cement-Matrix Composites
J., Shannag, M. . 1999
Shear lag theory was used to predict the extent of fiber debonding at the end of the elastic range in a high performance Fiber Reinforced Concrete (FRC) such as DSP (Densified Small Particles). The analysis predicts two-way debonding at onset of first cracking in FRC’s containing randomly distributed, discrete steel fibers. Findings indicate that the extent of fiber debonding at first cracking is relatively low for DSP containing fiber volume fractions higher than 3% when compared to ordinary FRC containing fiber volume fractions less than 1%. This analysis allows a more accurate prediction of elastic strain in FRC’s.
Various combinations of a local natural pozzolan and silica fume were used to produce workable high to very high strength mortars and concretes with a compressive strength in the range of 69-110…
Laboratory investigation was undertaken to develop high-performance cement-based grouts for infiltrating fiber-reinforced cementitious composites that makes them ideally suited for structural…