Which of the following is not the feature of Self Compacting Concrete?
i. A minimum slump flow of 600 mm
ii. Sufficient amount of fines (< 0.125 mm) preferably in the range of 400 – 600 kg/cm3
iii. High range of water reducing admixtures (HRWR) and viscosity modifiers (VMA) in appropriate dosage
1
Only (ii)
2
(i) and (ii)
3
(ii) and (iii)
4
(i), (ii) and (iii)