Beschreibung:
<jats:title>ABSTRACT</jats:title><jats:p>A description is given of several industrial waste‐wood furnaces with auxiliary oil‐firing equipment to show the types of installations and the slagged areas. In the tests, wood ash from industrial furnaces was blown onto panels of various refractories which had bccn heated in an oil flame. Chemical analyses and properties of the brick tested, the waste‐wood ash, the slags from industrial furnaces, and the test furnace are given. All of the refractories suffered in this high lime‐alkali slag, but silicon carbide gave the best resistance. The tests indicated that the absorption of the fireclay and diaspore types of brick was more important in their resistance than the alumina‐silica ratio. Petrographic studies of the slag‐brick interface showed the presence of mullite in all of the fireclay, kaolin, and diaspre brick.</jats:p>