Utilization of by-products from western (US) coal combustion in the manufacture of mineral wool and other ceramic materials
The ash by-products from combustion or gasification of western US coals have chemical and mineralogical characteristics that lend themselves to utilisation in ceramic materials. Laboratory and pilot-scale fabrication of four such materials has been studied. Cyclone slag from four lignite-fired power plants and a dry scrubber ash has been fabricated into mineral wool insulation in a pilot-scale cupola. Extended and fired mixtures of fly ash, clay and ground glass have produced ceramics with very high flexural strength. Ceramic glazed wall tiles utilising fly ash in place of clay have been prepared and shown to meet most specifications for fired clay tile. Both fired and unfired dry-pressed brick containing 100% western fly ash have met ASTM specifications for fired clay brick.
- OSTI ID:
- 5988523
- Journal Information:
- Cem. Concr. Res.; (United States), Vol. 14:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ASHES
WASTE PRODUCT UTILIZATION
BRICKS
CERAMICS
FLY ASH
MINERAL WOOL
BROWN COAL
BY-PRODUCTS
COAL GASIFICATION
COMBUSTION
COMBUSTION PRODUCTS
FOSSIL-FUEL POWER PLANTS
LIGNITE
SLAGS
USA
AEROSOL WASTES
BUILDING MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
MATERIALS
NORTH AMERICA
OXIDATION
POWER PLANTS
RESIDUES
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
WASTES
010800* - Coal
Lignite
& Peat- Waste Management