SOME PROPERTIES OF FIBER REINFORCED NO FINE CONCRETE

Author

Abstract
This work focus on studying the mechanical characteristics of polypropylene and carbon fiber reinforced no fine aggregate concrete, containing different percentages of fiber. This work was carried out using several tests. These tests were workability fresh and hardened density, compressive strength, splitting tensile strength and modulus of rupture. Tests were performed for specimens at ages of (7, 28) days. The test results indicated that the inclusion of fiber to the pervious concrete mixes did not affect the compressive strength significantly, while the splitting tensile strength and the modulus of rupture were improved significantly. Test results indicated that, the modulus of rupture of (5%) carbon fiber pervious concrete specimens are three times that of the control specimens, while the modulus of rupture of (5%) polypropylene fiber pervious concrete specimens are two times that of the control specimens. The percentage increase in tensile strength for polypropylene mixes containing fiber by volume fraction of (1%, 3%, 5%) were (93%, 101% and 129%) respectively and the percentage increase in tensile strength for carbon mixes containing fiber by volume fraction of (1%, 3%, 5%) were (170%, 177% and 220%) respectively.

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Volume 5, Issue 4
Autumn 2012
Pages 439-450

  • Receive Date 01 December 2012
  • Revise Date 20 December 2012
  • Accept Date 25 December 2012