Arcosa Lightweight is the largest producer of rotary kiln expanded shale and clay lightweight aggregate in North America, with production facilities in Alabama, Arkansas, California, Colorado, Indiana, Kentucky, Texas and Louisiana. Arcosa Lightweight is a leading supporter of research, independent testing and field studies to improve the manufacturing process and expand the beneficial uses of the product. ARCOSA, Inc. is a diversified industrial company that owns market-leading businesses providing products and services to the energy, transportation, chemical, and construction sectors.