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Behaviour of Bamboo Reinforced Concrete Beams With 100% Recycled Coarse Aggregate
Abstract
The behavior of bamboo reinforced concrete (BRC) beams with 100% recycled aggregates (RA) was studied to ascertain the viability of the substitute materials and its adherence to predictions. Two beams with 1% and 2% longitudinal reinforcement ratios and with stirrups were stressed to failure under monotonic loading till failure. Observations of the deflections, crack width and crack appearance were recorded at increasing load intervals until failure. From experimental results, it was discovered that the higher percentage of longitudinal reinforcement exhibited a higher ultimate load capacity with lesser deflection. The beam with the higher percentage of longitudinal reinforcement also sustained cracks with smaller widths than observed in the other beam. A framework for predicting the behavior of BRC with RA was proposed and this seems to adequately predict results close to the experimental results obtained. It is recommended herein that the crushing strain of RC be set as 0.001 in the conventional sectional analysis of such members.
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