Detailed experiments were conducted on the use of GRP waste
in concrete composites. Mix design was in accordance with the
Building Research Establishment (BRE) 1988 mix design [15], and
concrete specimens were prepared as per BS EN 12390-2:2000 [16]
using different proportions of cement, aggregate as shown in
Table 1. Processed GRP waste powder was used as a partial
substitute for fine aggregates at the concentration of 5%, 15%, 30%
and 50% (w/w)