In seawater, underground water, deep underground or places contaminated with alum, there are often sulfate chemicals. After a period of construction, sulfates in soil and water will react with calcium hydroxide and hydrogen aluminate in concrete, causing concrete corrosion and reducing the life of the project. To overcome this situation, sulfate resistant porland cement products were created to withstand high sulfates, helping substances in concrete not react with sulfates.

To overcome this problem, in earnly May 2024 CHINFON CEMENT CORPORATION has just launched a new product sulfate resistant portland cement in the domestic construction materials market (PC_MSR50), this cement enhances the corrosion resistance of sulfate ions to concrete, helps make the concrete structure dense, increases waterproofing, protects steel structures, and increases durability of concrete and increase the life of the project when built in places containing sulfate ions SO₄ ^-2 such as salinity, alum areas, seawater areas, chemical tanks...

CHINFON CEMENT's production process of sulfate resistant portland cement includes two main stages: the production of sulfate resistant clinker and the manufactured clinker ground with a certain amount of gypsum to control the production of sulfate resistant portland cement.

Standards:

• Vietnamese standard TCVN 6067:2018 and conform to QCVN 16:2023 for PC_MSR50 cement products.
• Vietnamese standard TCVN 2682:2020 for PC50 portland cement product.
• Meets the technical requirements of the American Association for testing and materials standard ASTM C150-22 for type I/II portland cement product.

Specifications & functions:

• Reducing the corrosion of sulfate and chlorine for concrete in seawater, saline water, alum, and underground water conditions.
• Enhancing water resistance for concrete.
• Ensuring the safety of steel structures, helping the project maintain its original design and stand firm against all weather challenges.
• Ensuring the properties of concrete are always stable, increase the durability of concrete, and increase the life of the project.
• Suitable for Vietnam's climate.

Applications:

• Civil construction works.
• Bridges, piers and marinas.
• Sea dykes, dams, water reservoirs.
• Water drains or water treatment station.
• Foundations of offshore structure.
• Bridges and mangrove structures in areas affected by tides require high concrete grade.
• Structures and construction works where have chemicals containing sulfate ions.
• Low Alkali requirement for special projects.