Structural Analysis
For under water concreting.

The volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate
At least 10 percent more cement is required as compared to dry conditions
De-watering by pumping is not done or until 24 hours thereafter
All of these

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Structural Analysis
The minimum horizontal distance between two parallel main reinforcing bars, is

The diameter of the longer bar if their diameters are unequal
Greatest value of the above
The diameter of the bar if their diameters are same
5 mm more than nominal maximum size of the coarse aggregate

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