Scientist develops new product from coal ash
As one east Tennessee community struggles to recover from the devastating spillage of coal ash from a nearby Tennessee Valley Authority (TVA) coal-burning plant on to its land and waterways, one man is working to find better uses for the waste leftover from coal burning. Mulalo Doyoyo, an assistant professor in Georgia Tech’s School of Civil and Environmental Engineering, has developed a new structural material from coal ash and bottom ash that is strong and lightweight enough to serve as an alternative to cement in concrete.