f concrete composites
Results revealed that the 28 days mean compressive strength of
concrete made with 5% GRP waste powder under water curing
attained 37 N/mm2 with a standard deviation of 0.77. The
compressive strength of oven cured concrete was higher than the
water cured concrete specimens. However, the compressive
strength of control concrete showed the optimum strength i.e.
47 N/mm2
. The expected compressive strength of structural
concrete is 45 N/mm2
.