Initial setting time should not be less than 30 minutes.
Initial setting time should not be less than 30 minutes.
1 Setting Time
Final setting time should not be greater than 10 hours.
Final setting time should not be greater than 10 hours.
Super sulfate cement – 7 days
Super sulfate cement – 7 days
2. Required Curing Days
Ordinary portland cement – 10 days
Ordinary portland cement – 10 days
Cement with minerals and admixtures – 14 days.
Cement with minerals and admixtures – 14 days.
Lightly reinforced concrete: 25 – 75 mm.
Lightly reinforced concrete: 25 – 75 mm.
3. Slump Value (IS-456)
Heavily reinforced concrete: 75 – 100 mm.
Heavily reinforced concrete: 75 – 100 mm.
Trench fill : 100 – 150 mm ( for in-situ & tremie).
Trench fill : 100 – 150 mm ( for in-situ & tremie).
1 – 5 m3 : 1 No.
1 – 5 m3 : 1 No.
4.
Cube Samples
6 – 15 m3 : 2 No.
6 – 15 m3 : 2 No.
16 – 30 m3 :3 No.
16 – 30 m3 :3 No.
31 -50 m3 : 4 No.
31 -50 m3 : 4 No.
Above 50 m3 : 4 + 1 no. of addition for each 50 m3.
Above 50 m3 : 4 + 1 no. of addition for each 50 m3.
Above 50 m3 : 4 + 1 no. of addition for each 50 m3.
Above 50 m3 : 4 + 1 no. of addition for each 50 m3.