This type of cement is used in cases of average hydration heat and average resistance to sulfate attacks.
Due to the limitations of the aluminate phase and the less amount of C3S phase in this cement causing the special aforementioned characteristics, its initial compressive resistance is less than that of cement type 1. Cement type 2 is usually hardened more slowly than cement type 1, and it also produces less heat in the setting.
This type of cement is used in massive buildings so that when the concrete is set, they produce less heat and do not limit the mass of concrete placing. This type of cement is used in water and soil environments where the density of sulfate ion is medium and it is also used to place concrete in relatively hot weather where there is a risk of raising temperature of the ordinary concrete to more than 32 degrees Celsius and that of the mass concrete to more than 15 degrees Celsius.
- To be used in environments where chlorine and sulfate ions exist at the same time.
- It is not recommended to use this type of cement in environments with a high density of sulfate and also to place concrete in cold weather.
Properties of cement type 2
- They have low hydration rates, as a result, they are widely used in mass concrete placing.
- Due to the medium resistance to sulfate attacks, it is used in environments with a medium risk of sulfate attacks.
- In terms of raw materials, it is made up of a combination similar to Portland cement 1 while differing only in the fact that the amount of C3A is less than 8%. This limitation makes the produced cement have an average resistance to sulfate attacks.
Product specifications table
3200 Cubic centimeters / gram
400 kg / cubic centimeter