Structural Behavior of Reinforced Concrete Beams made with Natural Lightweight Aggregates

ABDELHAMID, CHARIF and M. JAMAL, SHANNAG and SALMAN, AL NASSER (2014) Structural Behavior of Reinforced Concrete Beams made with Natural Lightweight Aggregates. In: Second International Conference on Advances In Civil, Structural and Environmental Engineering- ACSEE 2014, 25 - 26 October 2014, Zurich, Switzerland.

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Abstract

This paper investigates the structural behavior of reinforced concrete beams made with locally available natural lightweight scoria aggregates. A series of 4 full scale structural lightweight reinforced concrete beams 2.9 m long, with a rectangular cross-section of 250×300 mm were designed, cast and tested under 4 points bending test. The effect of varying the compressive strength from 25 to 45 MPa on the load-deflection and moment-curvature responses of under reinforced beams with a reinforcement ratio of 0.25 of the balanced steel ratio was studied. Data presented include the load-deflection and moment curvature responses of the beams tested. The investigation revealed that the flexural behavior of the lightweight reinforced concrete beams was comparable to that of normal weight reinforced concrete beams with relatively larger deflections and curvatures. Test results showed a significant reduction in ductility of lightweight reinforced concrete beams with the increase in compressive strength from 25 to 45 MPa.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: lightweight concrete, flexure, reinforced concrete beam, moment, curvature, deflection.
Depositing User: Mr. John Steve
Date Deposited: 30 May 2019 08:32
Last Modified: 30 May 2019 08:32
URI: http://publications.theired.org/id/eprint/3023

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