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Concrete is not only the strongest and most environmentally friendly material, but also the most expensive. Therefore, for the budget construction option, there is this type of block. They can be used to build a wall of a low -rise building, or for the construction of external and internal partitions of high -rise buildings. Like concrete, blocks withstand temperature and moisture changes, they are incredibly strong and environmentally friendly. The wall erected from them, you only need to periodically cover with protective plaster, and the blocks will last you 100 years. Also, if desired, external insulation can be carried out. In any case, sand -cement blocks are reliable savings on classic concrete.