Study on Flexural Behavior of Coconut Shell Concrete using Quarry Dust

Abinesh Gunasekaran, K Pg, Annadurai, Head
2015 IJIRST-International Journal for Innovative Research in Science & Technology|   unpublished
This project presents the main results of the works concerning with the flexural behavior of reinforced concrete beam made with coconut shell (CS) and quarry dust and these were analyzed and compared with the conventional concrete with quarry dust. In these beams, sand is fully replaced with quarry dust (Q) by calculating volume of sand and quarry dust. Utilizing CS in concrete production not only solves the problem of disposing this solid waste but also help conserve natural resources" total
more » ... resources" total of 12 beams (6 beams with coconut shell concrete and 6 beams with conventional concrete) with varying reinforcement ratio(0.5 % to 3.89 %) were fabrication and tested. Data presented include the deflection characteristics, cracking behavior, mid span deflection and strains both in compression concrete and tension in reinforcement. From the experimental investigation, it was generally observed that the flexural behavior of coconut shell concrete (CSC) is comparable to that of other type of lightweight concretes and this investigation gives encouraging results for coconut shell (CS) to be used as coarse aggregate in the production of structural lightweight concrete. It was observed that CSC beams, IS 456 can be used to obtain a conservative estimation of the ultimate moment capacity and also provide adequate load factor against failure for reinforcement ratios satisfied all the serviceability requirements as per [IS 456-2000]. The results of concrete compression strain and steel tension strain shows that CSC is able to achieve its full strain capacity under flexural loadings. However, the failure zone of CSC was larger than CC beams.