In each experiment, concrete cubes specimens of size 100 100 100 mm were cast into moulds and compacted under
vibrating conditions at laboratory room temperature. After 24 h of casting, GRP waste concrete specimens were removed from the mould and were cured separately under two different conditions: in water at 20 2 C and in oven at 50 2 C (Fig. 4a, b).
About 90 concrete specimens were developed and triplicate specimens were tested to check the reproducibility of results.
After 14 days, 28 days and 180 days of curing, the developed concrete specimens were tested to assess their suitability for construction applications.