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| Year : 2012 | Volume
: 2
| Issue : 1 | Page : 63-67 |
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Earthquake-Resistant Performance of Polypropylene Fiber Reinforced Concrete Beam
S Arivalagan
Department of Civil Engineering, Dr. M.G.R Educational and Research Institute University, Maduravoyal, Chennai, Tamil Nadu, India
Correspondence Address:
S Arivalagan
Department of Civil Engineering, Dr. M.G.R Educational and Research Institute University, Maduravoyal, Chennai, Tamil Nadu
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0976-8580.94228
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The cyclic behavior of polypropylene fiber reinforced, plain concrete beams was studied in this research work. The reinforcement and volume ratio of polypropylene fiber were kept constant for all the beams. The beams were same dimensions, and the beams were tested under positive cyclic loading and the results were evaluated with respect to crack strength, ductility, energy absorption capacity, and stiffness behavior. The results showed that polypropylene fiber concrete beams had only slight effect on the stiffness, cracking moment, and ultimate moment. From the test results it was observed that polypropylene fibers were effective in reducing the crack width and crack propagation. Furthermore, it was observed that introduction of polypropylene fiber significantly improves the cracking behavior in terms of a formation of large number of finer cracks. Combining polypropylene fibers and reinforcement improved the behavior of reinforced concrete beams and changed its failure mode. Addition of polypropylene fiber to RCC imported ductility to structural members which is essential for seismic force-resisting structure. |
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