turning waste into treasure, the united states has developed coal ash polyurethane composite materials
u.s. researchers have developed lightweight pu composites using waste coal ash. according to north carolina agricultural and technical state university’s center for composites, the material could be stored underground for decades without harming the environment. kunigal shivakumar, director of the research center, said that if it is taken out and re-ground into powder, it can…
turning waste into treasure, the united states has developed coal ash polyurethane composite materials
us researchers use waste coal ash to develop lightweight pu composite material. according to north carolina agricultural and technical state university’s center for composites, the material could be stored underground for decades without harming the environment. kunigal shivakumar, director of the research center, said that if it is taken out and re-ground into powder, it…
