Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 1 (Q.No. 11)
11.
The initial setting time of lime-pozzolana, is
30 minutes
60 minutes
90 minutes
120 minutes.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
52 comments Page 6 of 6.

Ariful Sardar said:   2 months ago
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.

Aakash said:   2 months ago
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).
(2)


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