Effects of Hybridization of Carbon and Polypropylene Short Fibers as Reinforcement on Flexural Properties of Fine Aggregate Concretes
Abstract: Nowadays, the
advantages of short fibers as reinforcement in cement based materials are well
known. In this paper, the effect of hybridization of short polypropylene (PP)
and carbon fibers on flexural properties of a fine aggregate concrete has been
investigated. Samples with dimensions of
containing 2 vol% of the polypropylene and carbon fibers with 6 and 8mm
length were made. The PP to carbon fiber proportion in the samples were
selected as 100:0, 75:25, 50:50, 25:75 and 0:100. A four-point bending test was
carried out on all the samples to investigate the flexural behaviour. It was
found that the addition of carbon fibers significantly increases the flexural
load (i.e. 260%). The application of PP fibers leads to a 2590% increase in the
toughness compared to the control sample. It was also found that the sample
with carbon to PP ratio of 75/25 shows the optimum results and it leads to 190%
and 2070% increment in the flexural load and toughness, respectively, in
comparison to the control sample.
Keywords: Fine Aggregate
Concrete; Flexural Properties; Carbon Fibers; Polypropylene Fibers; Strain
Hardening Behavior
Author: Mana Halvaei, Masoud
Jamshidi, Masoud Latifi
Journal Code: jptsipilgg160056
Artikel Terkait :
Jp Teknik Sipil gg 2016
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