Mineral Facts and Problems (1965)
 Bulletin 630

Out-of-print, hardcover book from the Bureau of Mines, United States Department of the Interior. 

Asbestos References:

Book has 1 chapter with 10 pages about ASBESTOS, written by Timothy May, a Commodity Specialist.

Relevant Quotes from the book:

"Shorter fibers such as Canadian group 4, and to some extent 5 and 6 are used widely for asbestos-cement products such as roofing shingles and flat and corrugated siding.  Canadian Groups 4 and 5 and African amosite are used extensively for making 85% magnesia block and pipe insulation.  They consist of  about 85 percent basic magnesium carbonate and 15 percent asbestos.  Canadian group 5 is suitable for asbestos paper and millboard manufacture.  Such products are made on standard papermaking machines. An important use of asbestos paper is for making the so-called air-cell pipe covering.  The shortest fibers are used for boiler and roofing cements and as filler in asphalt floor tile and various other products."

"The uses of asbestos fibers of all varieties are numerous and range from floor tile to rockets.  The long fibers Canadian Groups 1, 2 and 3 are used for making textiles products such as cloth, yarn, tape and rovings.  The asbestos is spun and woven in much the same way as cotton, silk, or wool.  Asbestos fabrics are used extensively for lagging cloth, brakeband linings, clutch facings, safety clothing, packings, gaskets, and various other appliances. Low-iron fiber is used in cable insulation."

"Amosite is used for felted insulation in blanket form for high-temperature service up to 900 degrees Fahrenheit.  A loosely compacted form is applied as a covering for marine turbines, jet engines and similar applications. Amosite is also used as a constituent of 85% magnesia insulation and lightweight, fire-resistant marine partition board."

"Long-fiber crocidolite (blue asbestos) is woven into fabrics used for locomotive boiler lagging (in Great Britain) and for acid-resistant packings and gaskets. The principal use of the shorter crocidolite fibers is in making asbestos-cement pipe. Bolivian crocidolite (asbestos) has been found useful for making gas-mask filters."

"Asbestos will continue to find wide industrial use in friction materials, pipe insulation, packings, gaskets, plastics and many  other products.  Also large quantities of asbestos will be used for asbestos-cement pipe, roofing and siding products, floor tile, insulation, moulding compounds and millboards.?

"The biological effects of asbestos are a serious health problem in the industry. The hazards are recognized, however, and adequate filtering and ventilation are provided in processing plants. The extensive use of asbestos in a variety of industrial applications has drawn attention to the medical problems associated with this use. These problems include pulmonary asbestosis and neoplasia associated with occupational exposure to asbestos."

?The disposal of surplus inventories of asbestos in the Government stockpiles is of concern to the producing industry. The absence of any clearly defined and predictable long-term disposal program has heightened this concern.?

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