Conclusion

The following conclusion were drawn based on the experimental investigation-
  1. With increase in fiber content, the reduction in slump is noticed, especially beyond 1.5% dosage, the mix becomes fibrous which becomes difficult to handle situations. 
  2. The splitting tensile strength and compressive strength tests reveals that with the increase in volume ratios of polypropylene fibers the strength was increased proportionally with reference to the controlled mix without fibers.
  3. The maximum increase in split tensile strength was 40% and that in compressive strength was 34%compared to mix without fibers.
  4. When other samples were compared in the study, the samples with fiber content showed 1.5% optimum results.
  5. With increase in polypropylene fibers volume fraction the workability of concrete decreases. However, with addition of HRWR admixture higher workability can be achieved even either W/C ratios of 0.3.
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