Binder system No. of days Average bulk density (± 0.001 g/cm3) Cadmium
Control 1000 ppm 2000 ppm 5000 ppm
Cement + fly ash 1 2.303 2.303 2.303 2.303
28 2.303 2.345 2.380 2.395
Table 3: Average bulk density values of solidified products on 1 and 28 days of Curing.