why was coal tar replaced by butuine Share with your friends Share 0 Kirti Gogia answered this Please refer to the following linkhttps://www.meritnation.com/ask-answer/question/why-is-bitumen-used-for-road-surfacing-whereas-not-coal-tar/coal-and-petroleum/2877381 0 View Full Answer Aayush answered this The coal tar contains impurity soo more pure carbon form butuine is used 0