SUSMAX INC

SusMaX is a Philadelphia-based hard-tech startup spun out of Drexel University that converts waste coal combustion products (coal ash) into value-added lightweight aggregate for the construction industry. Using a proprietary thermochemical process and patented predictive thermodynamics-guided framework, SusMaX manufactures lightweight aggregate from 97% recycled waste coal ash. Their product increases concrete compressive strength by 20% when replacing 15% of gravel in normal weight concrete, is 20% lighter than market alternatives with 15-20% more crushing strength, and has 50% higher water absorption capacity. The overall solution reduces CO2 emissions by at least 50% compared to conventional alternatives. SusMaX received NSF SBIR Phase II funding of $1M and has backing from Michigan Climate Venture.