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World Journal of Engineering Research and Technology

An ISO 9001:2015 Certified International Journal.

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

Impact Factor : 5.924

ICV : 79.45

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Indexing

Abstract

FLEXURAL STRENGTH VS STRAIN OF REINFORCED RAC RICH MIX BEAMS WITH HIGHER WATER-CEMENT RATIO

Mahboob Oad*, Bashir Ahmed Memon, Abdul Hafeez Buller, Amjad Husssain Bhutto, Samiullah Sohu

ABSTRACT

This research paper presents laboratory investigations for the effect of higher water-cement ratio on the flexural strength of reinforced concrete beams cast with 50% dosage of recyclable aggregates from demolished concrete. 12 reinforced concrete beams were cast using rich mix (1:1.5:3). Additionally, six reinforced concrete beams were also cast using rich mix and all-natural aggregates. Water-cement ratio of 0.6 is used to study its effect on flexural strength, strain, deflection and cracking. Equal number of the beams was cured for 7- and 28-day. The test results show that increasing water-cement ratio has positive effect on flexural strength. However, deflection and strain remained higher than control specimen. The failure mode of the beams is observed shear failure.

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