Crushed stone. GOST 8267-93
Crushed stone from gravel for construction works. Fraction 5 - 20 mm.
1,25 D-25 mm from 0% to 0,5%
D - 20 mm from 6,1% to 10%
0.5 (d+D) - 12.5 mm from 30% to 60%
Content of grains of soft rocks - from 1,7% to 9%
Content of clay in lumps - from 0% to 0,25%
Content of grains of a plastic and iglovaty form (leshchadny) - to 10%
Durability. Drobimost 800-1000
Brand on a drobimost - Dr 8, Dr 12
Frost resistance F 25
One of the most widespread nonmetallic construction materials is crushed stone. It is used for production of concrete, reinforced concrete products and designs. For creation of drainage drainage systems also use crushed stone as it does not allow to stand to water. It is widely used in construction of highways as a pillow under an asphalt covering. Also crushed stone finds big application in improvement of territories, in the landscape gardening industry, landscaping. For arrangement of platforms, paths, registration of lawns, beds.