Technical characteristics of modern material
Cement brand – characterized by the compression and stretching limit of the experienced and stretching for 28 days.
For the cement of the brand 400, the strength of the strength during the bend should be at least 5, 5MPA, the strength of the strength during compression – 40 MPa. For cement brand 500, the strength of the strength at the bend of 6, 0MPA, the strength of the strength during compression of 50MPA and so on, depending on the brand. Also, with an increase in the brand of cement, the content of the clinker increases.
Portland cement is one of the most common materials in construction. Like any material, he must be bought from a trusted manufacturer and be of good quality. It is important to know that with prolonged storage, cement loses its properties, t. To. interacts with air. Therefore, without the need, it is not worth it to stock up on cement.