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Impact Toughness Properties of Polymer Latex Modified Concrete Composites


  • Structural Engineering Division, VIT University, Vellore - 632014, Tamil Nadu, India
  • School of Civil Engineering, VIT University, Vellore - 632014, Tamil Nadu, India


The paper focuses on the impact strength and toughness behaviour of SBR based polymer concrete reinforced with crimped polypropylene fibres. A total of 48 slab specimens were casted and tested on a manual type fabricated impact testing apparatus. Circular disc specimens of 400 mm diameter concrete slabs were used to test the impact strength. In the polymer modified concrete the dosage of fibre used were 0.1% and 0.3% to the volume fraction of the concrete. Toughness parameters such as first crack, ultimate, fibre concrete and post crack toughness were evolved from the experimental study. It is observed that ultimate toughness of polymer fibre concrete (372.78N-m) is higher compared to plain concrete (139.79Nm) due to absorption of energy by SBR latex polymer and bridging of polypropylene fibres compared to plain concrete. The effect of fibres in absorbing the impact load and cracks was shown in post crack toughness of polymer modified concrete with increase in the dosage of fibres from 0.1% to 0.3%.


Fibres, Impact Test, Polymer Modified Concrete, Post Crack Failure, Toughness.

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