This type of cement is produced in accordance with the specifications set out in the Iranian national standard No. ISIRI - 389 and the American standard ASTM - C150 and has the chemical and physical characteristics of cement 1-325, but more hydration heat, faster setting and initial strength And the final is more than its characteristics compared to cement 1-325.

This cement is used in all reinforced and unreinforced concrete structures that require early strength compared to type 1-325, such as columns, roofs, bridge slabs, structures that require rapid molding, as well as in the air. Used cold.

It is recommended to use this type of cement in a controlled manner due to high hydration temperature and to use it only in places where the destructive effects of sulfate are low.