PSC (Portland Slag Cement)

PSC (Portland Slag Cement)

Portland Slag Cement (PSC) is a type of cement that is made by combining Portland cement clinker, granulated blast furnace slag, and gypsum. The slag is a byproduct of the iron and steel industry, and it is ground into a fine powder before being added to the other ingredients. The mixture is then ground into a fine powder, and it is ready to be used to make concrete.

Portland Slag Cement (PSC) is produced through the following steps:

• Lime, silica, alumina, and iron oxide materials are finely ground together.
• This mixture undergoes high-temperature heating in a kiln to create Portland clinker.
• Portland cement clinker is then mixed with granulated slag, along with natural or chemical gypsum or calcium sulphate. The blending ensures uniformity.
• Only gypsum is allowed to be added to the mix, and its quantity must be controlled to prevent the sulphur trioxide content from exceeding 3%.
• The slag component in Portland Slag Cement typically ranges from 25% to 65% of the total mass.

• Additional natural or chemical gypsum may be included during the grinding process.

Features of Portland Slag Cement (PSC):

• Environment friendly: Utilizes blast furnace slag, a byproduct of the iron and steel industry, reducing waste and minimizing environmental impact.
• Enhanced durability: Offers improved resistance to chemical attacks and long-term strength, making it suitable for use in challenging environments.
• Cost-effective: Often more economical than traditional Portland cement due to lower clinker content and reduced energy consumption during manufacturing.
• Reduced carbon footprint: Helps to lower greenhouse gas emissions by utilizing industrial byproducts instead of relying solely on raw materials.
• Versatile: Suitable for a wide range of concrete applications, including marine structures, industrial facilities, transportation infrastructure, and residential construction.
• Slower hydration process: Allows for better control of setting time and improved workability, contributing to the overall performance of concrete structures.

For more information on cement types, you can check out our pages on OPC (Ordinary Portland Cement), a staple in construction known for its strength and versatility, and PPC (Portland Pozzolana Cement), which incorporates pozzolanic materials for enhanced durability and sustainability.