What is "gigacrete"

GigaCrete refers to a family of cementitious building products that consist of a proprietary non-silica mineral-based binder and filler materials that may include coal ash, non-silica-based sands, agricultural waste, and/or post-industrial recycled materials. The filler varies with application and availability. GigaCrete products do not contain silica-based sands or Portland cement, the binder used in traditional concrete.