An engineer from Washington State University has developed a new form of green, organic asphalt which can be manufactured using the cooking oil discarded by restaurants.

The new bioasphalt possesses the same physical properties as conventional asphalts made from petroleum, yet does not require the use of increasingly costly crude oil. According to inventor Haifang Wen, assistant professor of Civil Engineering at the WSU Department of Civil and Environmental Engineering, his green bioasphalt “is as good…