Evaluation of Concrete Using Reshaped Waste Tyre Rubber as Partial Replacement of Coarse Aggregate
M. Harikaran1, N Balasundaram2

1M. Harikaran, Assistant Professor, Department of Civil Engineering, Karpagam Academy of Higher Education, Coimbatore (Tamil Nadu), India.
2Dr. N Balasundaram, Professor, Department of Civil Engineering, Karpagam Academy of Higher Education, Coimbatore (Tamil Nadu), India.
Manuscript received on 05 May 2019 | Revised Manuscript received on 17 May 2019 | Manuscript Published on 23 May 2019 | PP: 611-615 | Volume-7 Issue-6S5 April 2019 | Retrieval Number: F110710476S519/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The increasing demand of natural resources for the concrete production has created significant impact on the environment and the concern to protect these natural resources is increasing. The conglomeration of waste tyres and their disposal attracts serious attention as their disposal on landfill pollutes the land, ground water and also air when they are incinerated. When water gets stagnated in these waste tyres, they form a breeding platform for mosquitoes and worms which cause dangerous diseases. Various research work had been conducted in the past which had results that showed reduction in the mechanical strength of the concrete. The objective of this research is to use the reshaped waste tyre rubber as partial alteration of coarse gravel in the concrete and to examine the outcome of providing an mooring hole of10mm in dia on the surface of the rubber gravel which will allow the cement paste to form a cylindrical mooring between the gravel and the concrete as well as serves as a reinforcement to the rubber gravel thereby, increase withstanding power to failure under load which simultaneously increase the strength. The partial replacements of coarse aggregates are done at 0%, 5%, 10%, 15% and 20% by volume of coarse aggregate. The resulting concrete specimens are tested for the physical charastricts of concrete such as crushing strength, Spliting strength and bending strength. The crushing strength of the 10% alteration was found to be 32.68N/mm2which was up to 7.92% increase compared to the conventional concrete mix. The Spliting strength of 10% alteration was 3.6 N/mm2 which was up to 11.80% increase compared to the conventional concrete mix. The Bending strength of 10% was 10.28 N/mm2 which was up to 7.08% increase compared to the conventional concrete mix. It was concluded that 10% alteration of coarse gravel with reshaped rubber gravel is the optimum replacement percentage that showed promising results and also drilling of hole on the rubber aggregate’s surface has proved to be an useful feature that served its purpose on its effect on the strength of the concrete[1].
Keywords: Anchorage Hole, Mix Proportioning, Waste tyre Rubber, Compressive Strength.
Scope of the Article: Concrete Structures