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The result of the chemical reaction of limestone, clay and other additives under intense heat treatment in a furnace, which usually contains calcium silicate and aluminate. To produce gray clinker, raw materials such as iron oxide, clay, etc. are combined with limestone.

The result of grinding and mixing clinker and other additives (gypsum, slag, etc.) in a cement mill. Portland cement is the most common type of cement.

If the type of cement is not specified, type one cement is considered. This type of cement is used in situations with a low risk of sulfate attack and is used in the manufacture of ordinary concrete.

1-325: 28-day resistance of this cement is 325 kg / cm2

1-425: The 28-day resistance of this cement is 425 kg / cm2

This type of cement has the largest share of production in the country. This type of cement has low hydration heat and must be resistant to moderate sulfate attacks. Type 2 cement is used in groundwater systems with a high percentage of sulfate.