§ 17. Mr. Doddsasked the Minister of Works what practical application has been made of the successful experiments at the Building Research Station, Garston, Hertfordshire, of producing good quality bricks from 85 per cent. pulverised fuel ash waste at power stations and 15 per cent. clay.
§ Mr. BirchThe large-scale application of the results of these experiments raises technical and economic problems which the brickmakers are considering. Some brickmakers are now using a small proportion of fly ash in their regular production.
§ Mr. BirchIt is not an easy matter. It is not economic to transport fly ash any great distance. One has to have suitable clay and fly ash close together. The matter raises a lot of problems.