Some Cement types
There are various types of cement as per IS codes in India, which are classified based on their composition, strength, and application. Some of the commonly used types of cement as per IS codes are:
Ordinary Portland Cement (OPC) - IS code 269: This is the most commonly used cement type and is suitable for general-purpose construction works. It has an initial setting time of 30 minutes and a final setting time of 600 minutes.
Portland Pozzolana Cement (PPC) - IS code 1489: This cement type is made by combining Portland cement clinker, gypsum, and pozzolanic materials like fly ash or volcanic ash. It has better workability and durability than OPC.
Rapid Hardening Cement - IS code 8041: This type of cement sets and hardens quickly, making it suitable for construction work that requires early strength development, such as precast concrete and pavement.
Sulphate Resisting Cement - IS code 12330: This cement type is used in construction works where the soil or water contains a high amount of sulphate. It has a low heat of hydration and provides better resistance to sulphate attack.
Low Heat Cement - IS code 12600: This type of cement generates less heat during hydration and is suitable for massive concrete structures like dams and foundations.
High Alumina Cement - IS code 6452: This cement type is made from bauxite and has high strength and rapid hardening properties. It is commonly used in the construction of marine structures, sewage treatment plants, and refractory works.
White Cement - IS code 8042: This cement type is used for architectural and decorative purposes due to its white color. It is made by using raw materials with low iron content, such as china clay and white limestone.