Difference Between Ordinary Portland Cement and Rapid Hardening Cement

What is the main difference between ordinary Portland cement and rapid hardening cement?

The main difference between ordinary Portland cement (OPC) and rapid hardening cement (RHC) lies in their setting time and compressive strength.

Setting Time

Ordinary Portland Cement (OPC): OPC typically takes about 24 hours to harden. It has a slower setting time, allowing for a longer working time.
Rapid Hardening Cement (RHC): RHC is designed to set and harden quickly, usually within a few hours.

Compressive Strength

Ordinary Portland Cement (OPC): OPC gains strength over time and is suitable for most construction applications.
Rapid Hardening Cement (RHC): RHC has a higher compressive strength due to its faster rate of hydration.

Usage

Ordinary Portland Cement (OPC): Widely used for general construction purposes.
Rapid Hardening Cement (RHC): Ideal for projects that require quick turnaround times or in cold weather conditions.
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