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Steam-cured Bricks from Industrial Mineral Wastes.
Pigott-PG; Valdez-EG; Dean-KC
NTIS: PB 231 284 :13 pages
This investigation by the Bureau of Mines demonstrated that building bricks can be produced by the steam-curing process from various types of industrial mineral wastes. Wastes, utilized to produce bricks, consisted of copper mill tailings, roofing granule fines, asbestos fines, and zinc mill tailings. Bonding of the wastes with either ca(oh)2 or portland cement resulted in building bricks that met ASTM specification c73-67 for grade sw and mw bricks when evaluated in accordance with ASTM designation c67-66 on sampling and testing of brick. An economic evaluation of the process indicates the total operating cost per 1,000 bricks to be about $36.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 231 284
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division