§ Mr. Eadieasked the Minister of Public Building and Works what assistance his Department has given in the development of the Jumbo brick as a possible replacement for the clay brick; and from what sources is the fly ash used in its manufacture expected to come.
§ Mr. LoughlinSome years ago the Building Research Station undertook work for the electricity authorities on the development of uses for pulverized fuel ash from coal-burning power stations. The methods developed for using raw or sintered fly ash in lightweight concrete blocks are now in general use.