University of Khartoum

Evaluation of Fresh and Hardened Properties of Polypropylene Fiber Reinforced Concrete

Evaluation of Fresh and Hardened Properties of Polypropylene Fiber Reinforced Concrete

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Title: Evaluation of Fresh and Hardened Properties of Polypropylene Fiber Reinforced Concrete
Author: Mohammed, Mysoon Marghani Bakheet
Abstract: This thesis presents an experimental study on the effects of adding polypropylene fiber on concrete properties. A concrete mix without fiber addition had been set as reference mix. Polypropylene fiber was added to concrete in six different percentages of cement weight as follows 0.25%, 0.5%, 0.75%, 1.0%, 1.25% and 1.5%. An experimental programme was carried out to investigate the effects of PPF on fresh and hardened properties (workability, compressive, split tensile and flexural strength). Rebound hummer test was carried to insure concrete uniformity and work quality control. The results of slump test indicated that workability of concrete was decreased with the addition of PPF. Reduction of 65% had been measured with the higher fiber content of 1.5%. The results also showed that compressive strength had increased by 13.4% at fiber content of 1.5%, split tensile strength had increased by 17% at fiber content of 1.25%, and flexural strength had increased by 16.8% at fiber content of 1.5%. Research concluded that compressive, split tensile and flexural strengths of concrete had been improved with the addition of polypropylene fiber. Rebound hummer test results indicated good accuracy of production process and high uniformity of concrete.
Description: 84 page
URI: http://khartoumspace.uofk.edu/123456789/23577


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