In this work, an attempt is made to investigate the influence of the glass fiber on the natural and recycled aggregate concrete. Ten beams of size 1500 mm x150 mm x 230 mm were cast and curing was done for 28 days. The flexural behavior of beams is studied in the present work with glass fiber for recycled aggregate concrete. There was total of five batches of concrete mixes for the grade M30 for natural and recycled aggregate. The glass fibers were added in proportion by 0.50%, 1%, 1.5% and 2% by weight of cement. The load carrying capacity of specimens with 100% (RCA) with 2% fiber content is increased by 14% compared to that of 100% (RCA) with 0.5% fiber content. Compared to beam A (NCA) 0%fibre, the moment of beam E (RCA) at 2%fibre is decreased by 6%. The investigations indicated encouraging results for Recycled Aggregate Concrete (RAC) beams with glass fibers in all aspects, thus, pointing to recycled aggregate as potential alternative source of aggregate.
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