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wnen tea J.o per cent cement kiln dust while control steers fed a more normal ration gained 2.3 pounds per day.
Cement kiln dust is a byproduct of the cement manufacturing process, it is a very fine material that is collected from the hot gases given off from kilns or ovens in which the ingredients used to make Portland cement are heated to temperatures as high as 150 degrees Centigrade.
Chemical analysis of the dust, Gerken said, shows it is a complex blend of many mineral elements. It is composed of extremely small
87.9%