Strength and ductility of rubberized concrete beams with micro-reinforcement
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A laboratory study has been conducted on R.C beams with coarse aggregate replaced by pretreated supplementary aggregates and micro-reinforcement included. For this investigation, seven full-scale beams of length 3 m and having a size of 150 mm × 250 mm were fabricated and tested for their strength and ductility. One beam was treated as reference specimen. Remaining six beams were fabricated with pretreated supplementary aggregates and micro-reinforcement. Content of rubber shreds and quantum of micro-reinforcement were considered as the primary variable. The fabricated specimens were tested under monotonic loading until failure. It is evident from test that inclusion of pretreated supplementary aggregates and micro-reinforcement adds the strength and ductility of R.C beams.
KeywordsDuctility Supplementary aggregates Micro-reinforcement Normal strength concrete Rubber shreds Energy absorption
I gratefully acknowledge the authorities of Annamalai University for granting necessary permission to work on the research topic and extending facilities for casting and testing in the department of civil and structural Engineering, Annamalai University.
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Conflict of interest
The authors declare that they have no conflict of interest.
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