Indian minister advocates use of slag cement in roads

India: Transport Minister Nitin Gadkari has promoted the use of ‘waste’ materials such as slag cement for the construction of roads. He said that the ministry has decided to build concrete highways in the place of traditional bitumen roads, in comments to local press at a ‘Make In India’ campaign event. He added that slag cement costs up to four times as less as normal cement making it a ‘game changer’. At present a few test roads made with slag cement have been built in the north of the country.