What are the five major compounds of Portland cement?

The Five Major Compounds of Portland Cement

Tricalcium silicate (C3S): This compound hydrates and hardens rapidly and contributes largely to the initial strength.

Dicalcium silicate (C2S): It hydrates and hardens slowly, and its contribution to strength increases over time.

Tricalcium aluminate (C3A): It contributes to setting and hardening speed, but too much can lead to expansion and cracking.

Tetracalcium aluminoferrite (C4AF): It is the least important compound, contributing little to strength.

Gypsum: It is added to slow the hardening process.

These compounds work together to create a durable and strong concrete material that is commonly used in construction projects.

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