Natural Jute Fibre-Reinforced Polymer Composite System for Posttensioned Beam Strengthening in Flexure

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Designation</td><td class="align_center">First crack load (kN)</td><td class="align_center">Avg. mid span deflection at first crack (mm)</td><td class="align_center">Avg. mid span deflection at failure (mm)</td><td class="align_center">Deformability index</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Scheme A</td><td class="align_center">CB1, CB2, and CB3</td><td class="align_center">3.687</td><td class="align_center">6.522</td><td class="align_center">1.77</td></tr><tr><td class="align_left">Scheme B</td><td class="align_center">JFB4, JFB5, and JFB6</td><td class="align_center" colspan="2">The first crack deflection was not observed in fully U-wrapped beams</td><td class="align_center">—</td></tr><tr><td class="align_left">Scheme C</td><td class="align_center">JFB7, JFB8, and JFB9</td><td class="align_center">4.531</td><td class="align_center">10.727</td><td class="align_center">2.36</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Deformability indices for beams designed to fail under flexure.</div>

Advances in Materials Science and Engineering

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Table 3

Table 3: Natural Jute Fibre-Reinforced Polymer Composite System for Posttensioned Beam Strengthening in Flexure 