Fracture Behaviour of Hybrid Synthetic Fiber Reinforced Concrete

Jose, James (2016) Fracture Behaviour of Hybrid Synthetic Fiber Reinforced Concrete. Masters thesis, Indian Institute of Technology Hyderabad.

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Abstract

Fibers have been used as discrete randomly distributed reinforcement to strengthen a material weak in tension. A concrete beam containing fibers suffers damage by gradual development of single or multiple cracks with increasing deflection, but retains some degree of structural integrity and post - crack resistance even under considerable deflection. A composite can be termed as hybrid , if two or more types of fiber s are rationally combined to produce a composite that derives benefits from each of the individual fibers and exhibits a synergetic response. In this study, macro polypropylene fibers with micro Polypropylene fibers are been used. Flexural tests are done f or Hybrid Synthetic Fiber Reinforced concrete (HFRC) and are compared with Synthetic Fiber Reinforced Concrete (SFRC) of the same fiber volume fraction. It was found that HFRC retains the same toughness as SFRC when the concrete is mature and a better toug hness at early age. The strain distribution information obtained from the DIC is used to study the crack growth in the beams. Crack bridging stresses contributed by hybrid - synthetic fibers are determined.

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IITH Creators:
IITH CreatorsORCiD
Item Type: Thesis (Masters)
Uncontrolled Keywords: TD662
Subjects: Civil Engineering > Soil Structure Interaction
Divisions: Department of Civil Engineering
Depositing User: Team Library
Date Deposited: 07 Sep 2016 06:40
Last Modified: 07 Sep 2016 06:40
URI: http://raiith.iith.ac.in/id/eprint/2728
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