Coarse-grained asphalt concrete is a widely used pavement material in road construction. It is primarily composed of coarse aggregates (such as crushed stone or gravel), asphalt, and mineral powder. Its characteristic lies in the larger particle size of the aggregates, usually ranging from 26.5mm to 31.5mm (through a round hole sieve of 30-40mm), which gives the coarse-grained asphalt concrete its unique structure and properties.

Coarse-grained asphalt concrete, with its unique performance advantages, is widely used in the following fields: highways, urban roads, airport runways, industrial sites, docks, and warehouses.

Coarse-grained asphalt concrete, with its robust load-bearing capacity and exceptional durability, plays a crucial role in modern road engineering. As technology advances and materials are optimized, coarse-grained asphalt concrete is poised to play an even more significant role in future road construction.