Q.: The May 1978 issue of Concrete Construction contains an article on the flame treatment of concrete for finishing or cleaning. The article, however, fails to give any information on the availability of such equipment and the cost associated with it.

A.: The only source that we are currently aware of is AGA Burdox Inc., 3300 Lakeside Avenue, Cleveland, Ohio 44114. Attention: Mr. John Campbell, Executive Vice-president.