Aggregate is a granular material that plays a filling and skeleton role in a mixture, including crushed stone, gravel, machine-made sand, stone chips, sand, etc.
Coarse aggregate refers to crushed stones, broken stones, screened stones, and slag with a particle size greater than 2.
36mm in asphalt mixtures; In cement concrete, coarse aggregate refers to crushed stones, gravel, and broken gravel with a particle size greater than 4.
75mm.
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