Tag: Sheng Tang

R. Christopher Williams awarded utility patent for asphalt materials production method

Civil, construction and environmental engineering professor uses Iowa agricultural products to create bioasphalt Asphalt materials affect everyone in the country, from the roads we drive on to the airports we fly out of. Producing the materials is a complicated process with many variables, one of which is the use of oil-based materials. Though asphalt production … Continue reading R. Christopher Williams awarded utility patent for asphalt materials production method