The composition of the main components distinguishes the following types of material: granite, limestone and gravel gravel. To obtain granite grains, by undermining the cliffs, large blocks are produced, which are placed in crushing machines. Then smaller stones are sifted into various fractions. In road construction, limestone crushed stone is widely used. Receive it with crushing sedimentary breed — limestone (calcium carbonate). This is less durable than granite material, but suitable for the construction of roads and the production of many reinforced concrete products.
Large blocks
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