search
arrow-left Previous
Next arrow-right
Q: The process of mixing, transporting, placing and compacting concrete using Ordinary Portland cement should not take more than how much time?
  • A. 30 minutes
  • B. 40 minutes
  • C. 75 minutes
  • D. None of these
Correct Answer: Option A - The process of mixing, transporting, placing and compacting concrete using ordinary portland cement (OPC) should not take more than 30 min because the initial setting time of OPC is 30 min,; when the cements starts loosing its plasticity.
A. The process of mixing, transporting, placing and compacting concrete using ordinary portland cement (OPC) should not take more than 30 min because the initial setting time of OPC is 30 min,; when the cements starts loosing its plasticity.

Explanations:

The process of mixing, transporting, placing and compacting concrete using ordinary portland cement (OPC) should not take more than 30 min because the initial setting time of OPC is 30 min,; when the cements starts loosing its plasticity.