What is the strength of cement?Reveal the cement strength and foam concrete behind story!

What is the strength of cement?Reveal the cement strength and foam concrete behind story!
Cement strength grade is used to represent the cement strength of high and low level, it is to put the cement and move in a ratio of 1:3, a standard (ISO) in accordance with the standards prescribed by the state method made 40 * 40 * 160 mm of cement mortar block, standard curing test data from 28 days in the press.
Different strength grade of cement production, is in order to adapt to the needs of different grade concrete, high strength grade of cement commonly used for high strength grade of concrete, the low grade cement is used for low strength grade of concrete.Due to high strength grade of cement production process is complicated, the price is higher, if all are with high strength grade of cement is bound to cause waste.Cement with different strength, therefore, in order to reasonable choice according to the need of different projects.