HC Deb 11 June 1991 vol 192 c476W
Mr. Flynn

To ask the Secretary of State for Energy what uses are made of the ash created in the burning of coal in fossil-fuel power stations.

Mr. Heathcoat-Amory

Up to 50 per cent.—around 7 million tonnes—of the ash from coal-fired power stations is used for commercial purposes in a number of constructional applications and building products, for example, as structural fill material in road construction projects, in the manufacture of aerated building blocks and lightweight aggregates, and concrete applications.