high-early-strength portland cement

cement

Also known as: rapid-hardening portland cement

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June 29, 2026

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High-early-strength portland cement, also known as Type III cement, is a specialized type of portland cement designed to achieve high strength in a short period. This is primarily due to its composition and the fineness to which it is ground. The compound tricalcium silicate (C₃S) is largely responsible for the strength developed in the first week of hardening. This rapid strength gain makes it ideal for applications where formwork needs to be removed quickly or where construction must proceed rapidly, even in cold weather conditions.12

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cement
Types of portland cement
… (Type I), modified (Type II), high-early-strength (Type III), low-heat (Type IV), and sulfate-resistant (Type V). In other countries Type II is omitted, and Type III is called rapid-hardening. Type V is known in some European countries as Ferrari cement.
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… (Type I), modified (Type II), high-early-strength (Type III), low-heat (Type IV), and sulfate-resistant (Type V). In other countries Type II is omitted, and Type III is called rapid-hardening. Type V is known in some European countries as Ferrari cement.
Read More