Portland Cement Type 425-1 is classified in Iranian National Standard No. 389 as Type 1 Portland Cement with a strength rating of 425 Kg/cm².
This cement is recommended for all reinforced and unreinforced concrete structures that require early strength, such as columns, ceilings, bridge slabs, structures requiring fast formwork removal, and in cold weather.

The 425-1 cement produced by this plant, due to high-quality raw materials and precise production control, maintains consistent quality and offers superior properties compared to the values specified in the standard.
This cement corresponds to the European CEM I 425 N strength class.

Key Features of Portland Cement Type 425-1

• 28-day compressive strength of 460 ± 20 kg/cm².
• Faster formwork removal compared to other cements.
• Better performance in precast and prestressed elements.
• Possible reduction of cement dosage to achieve the same concrete strength compared to similar cements.