Time In Days Identification Initial Weight at day 0 Final weight after test period Change in Weight (g) Rate of corrosion in mil per year (mpy)
7 C 9.4621 9.4621 0.0000 0.0000
7 C 9.7832 9.7832 0.0000 0.0000
14 C 8.7731 8.7731   0.0000 0.0000
14 C 9.0702 9.0700 0.0002 0.2264
21 C 9.7422 9.7422 0.0000 0.0000
21 C 8.8013 8.8013 0.0000 0.0000
28 C 9.6213 9.6193 0.0020 1.0672
28 c 9.0922 9.0911 0.0011 0.6211
*presentation represents duplicate set ups.
Table 2: Change in weight of concrete coating material coupons placed in sulphate reducing bacterial set up after 28 days.