zenith is a professional manufacturer of aggregate processing and recycling equipment, and provide all kinds of aggregate crushers machine for sale with best price for your aggregate processing plant. obviously we offer other crushing plant for example coal crushing plant, ore crushing plant, concrete crushing plant and stone powder grinding line. with 30 years’ experience, we have been confident with our products and service. now our crushers, grinding mills and other mining equipments have exported to greater than 130 countries, for example new zealand, malaysia, germany, france, india, iran, canana, turkey, egypt, uae, brizil, zimbabwe, mexico, sri lanka, auatralia, usa etc.
aggregates would be the garbage for construction buiding, plus they are inert granular materials for example sand, small-size gravel, or crushed stones. they along portland cement and water, are an important ingredient in concrete making. aggregate can be split into two distinct categories-coarse and fine. coarse aggregates are particles higher than 0.19 inch (4.75 mm), but generally range between 3/8 and 1.5 inche (9.5 mm to 37.5 mm) across. gravels constitute the majority of coarse aggregate used in concrete. fine aggregates generally are consist of natural sand or crushed stones with most particles passing via a 3/8-inch (9.5-mm) sieve of vibrating screen.
natural gravel or sand are often dredged or dug from the pit, river, lake, seabed or mountain. crushed aggregate is produced by crushing quarry rocks, boulders, cobbles, or large-size gravels. recycled concrete is a viable source of aggregate and has been satisfactorily used in soil-cement, granular subbases, plus new concrete. aggregate processing includes crushing, screening, and cleansing the aggregate to acquire proper cleanliness and size. if necessary, a benefaction process for example jigging or heavy media separation can be used to upgrade the standard.