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Advances in Concrete Construction   Volume 5, Number 6, December 2017, pages 613-624
DOI: https://doi.org/10.12989/acc.2017.5.6.613
 
Effect of fiber and aggregate size on mode-I fracture parameters of high strength concrete
Ch.Naga Satish Kumar, P.V.V.S.S.R. Krishna and D.Rohini Kumar

 
Abstract     [Full Text]
    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 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 (B) decreases and fracture process zone (CF) increases.
 
Key Words
    high strength concrete; mode I fracture energy; fracture process zone; brittleness number; steel fiber
 
Address
Ch.Naga Satish Kumar, P.V.V.S.S.R. Krishna and D.Rohini Kumar: Department of Civil Engineering, Bapatla Engineering College, Bapatla-522101, India
 
References
    -acc0506004-
 

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