The aggregate industry is the literal building block that builds towns and cities and the connections in between. The industry is synonymous with infrastructure but more than that. It allows numerous other industries to excel, increase quality of life and help create a sustainable future. The transportation industry is dependent on aggregates to build efficient public transit systems, airports, highways, railways and seaports. The energy sector relies on aggregates to build more efficient power plants and electrical substations. Aggregates help the water management industry improve the drinking supply of water; disposal of wastewater; creating major irrigation systems; and flood control systems. 

Aggregates play a crucial role in everything we touch: some may be obvious - roads, railways, bridges, tunnels, water supply, sewers, electrical grids and telecommunications; and some may surprise you - televisions, phones, and other consumer electronics. 

These organically occurring materials are extracted from natural deposits, such as granite, limestone and trap rock. With over 2 billion tons of aggregate used annually in the U.S., the applications and impact are limitless. 

Our members produce:

• Concrete aggregate – Used in Building, bridges, and foundations 
• Crushed stone aggregates –Used as base, subbase, or surface of roads. These aggregates provide a rigid structure and reduction in shrinkage and cracking.
• Gravel –Help filtration and drainage of water and reduce erosion
• Sand – Used to restore beaches, sports surfaces, racetracks, and other recreational facilities
• Recycled concrete – Used as a base on which other construction materials are placed thanks to its compact nature
• Slag Cement – Applied in residential & commercial concrete, precast & prestressed concrete, green sustainable concrete, concrete Pipe, and soil stabilization.
• Industrial Sand – Used to improve durability and structure. Typical applications include water filtration and production, glassmaking, metal casting, consumer electronics, and recreational activities.
• Limestone – Used in the manufacturing of steel, paper, and medicine.  
• Ballast Rock – Serves as a bed for railroad tracks and provides track stability, drainage, and support of significant loads carried by railcars.
• Agricultural lime – Helps neutralize soil acidity and increase agricultural yields