Stone block

STONE BLOCK (EN: stone block; DE: Steinblock, Vollstein; FR: block de pierre; ES: bloque de piedra; RU: блок каменный) is the the product of the natural stone in the shape of the right parallelepiped. They distinguish the masonry stone blocks (they are used within the construction industry) and the billets (they serve for the production of the facing and architecture-building products). They extract the masonry stone blocks using the open pit and underground methods, using the stone-cutting machines, from the light-weight porous rocks with the volume mass of up to 2100 kilograms per cubic metre (limestones, tuffs, marls, and others).

Within the USSR, they produce the masonry stone blocks mainly within the Ukraine, Azerbaijan, Armenia, and Moldova (approximately 15 million cubic metres per year). They produce within the USSR the billets of the stone blocks according to the GOST governmental standards: from the dense igneous, metamorphic, and sedimentary rocks, using the drilling-wedging and drilling-blasting methods; from the granite using the thermal cutters; from the marble, travertine, and other rocks with the medium strength, using the stone-cutting machines, rope saws, and drilling-wedging method; from the tuff, coquina limestone, and other relatively low-strength rocks, using the stone-cutting and cutting machines. The volume of the extraction of the billets for the production of the facing and architecture-building products within the USSR is approximately 500 thousand cubic metres per year (1980).