Civil Engineering - Building Materials - Discussion

Type of Cement - Initial Setting Time:

Ordinary Portland Cement (OPC) - 30 minutes (min).
Rapid Hardening Cement (RHC) - 30 minutes (min).
Portland Pozzolana Cement (PPC) - 30 minutes (min).
Portland Slag Cement (PSC) - 30 minutes (min).
Low Heat Cement - 60 minutes (min).
Sulphate Resisting Cement - 30 minutes (min).
Quick Setting Cement - 5 minutes (min)** (sets very fast!)
High Alumina Cement - 30 minutes (min).
Lime-Pozzolana Cement - 90 minutes (min).

The initial setting time of lime-pozzolana is generally two hours (120 minutes).

This is the time it takes for the cement paste to start losing its plasticity when mixed with water.

Thank you everyone for giving a description.

OPC's initial setting time is 30 MIN.

And final setting time is 600 MIN.

It is found in Portland cement and the answer is 120 mins.

120 minutes is the right answer.

The initial setting time is 30minutes.

The initial setting time for lime pozzolana is Two hours.

The initial and final setting time of RHC is 5 mins and 30 mins respectively.

30 minute is the correct answer.