The mean density of 12 mm thick cement composites developed
using 5% GRP waste fibre was 18% higher than that of the control
specimens (Fig. 10). Similarly, the mean density of 8 mm thick
panels developed with 5% GRP waste fibre was 15% higher ascompared to control samples. Since, the density of glass fibre varied
from 2540 kg/m3 to 2780 kg/m3
, the addition of 5% GRP waste fibre
in the cement composites might have contributed to increase the
density of panels. Moreover, application of the superplasticiser
reduced the water content and contributed towards more
compaction and increased the quantity of cement composites
leading to a higher density. The mean density of 8 mm panels
developed without GRP waste fibre was 1668 kg/m3
.