Widely used in construction

All concrete can be divided into certain groups-stamps based on the following classification: M-100-concrete-the most inexpensive cost and the lowest quality in quality, M-150-is used for all kinds of screeds, M-200-the most popular brand of concrete during construction floor slabs, as well as for the construction of the foundation, stairs, M-250-concrete, which in its main characteristics is similar to the M-200 and is used for the same purposes, the M-300 is a quality brand used in the construction of foundations and monolithic walls, wells , stairs, the M-350 is used to build responsible structures, the M-400 is extremely strong concrete-nevertheless, it has not been widely used in construction; M-450, M-500-the strongest brands that are often used in the construction of dams, dams, beams and columns.