Development of potential uses for the residue from fluidized bed combustion processes. Quarterly technical progress report, March-May 1980

Technical Report · Tue Jan 01 04:00:00 EST 1980

OSTI ID:5231741

Minnick, L J

Results of tests on expansion bars made from conditioned and chemically processed AFB residue showed levels of expansion confirming that ettringite formation may be the main cause of the volume instability observed in road base compositions containing AFB residue. AFB fly ash, when treated with acid washing to remove calcium, has shown an ability to function as an ion exchange material. Further tests have shown that treatment of AFB fly ash by acid washing and the addition of zinc chloride produced a material that behaves like activated carbon in terms of color removal from water. Observations from ten different mix compositions using AFB residue, pulverized coal fly ash, and, in some cases, a gypsum waste sludge, have shown that briquettes having acceptable green strength for normal handling can be made from most formulations using a laboratory scale roll briquetting machine. Loose slurry mixes containing various proportions of AFB residue and pulverized coal fly ash develop sufficient compressive strengths at comparatively low permeabilities to recommend further investigation of their potential use as an expansive grouting material. The addition of portland cement in amounts of 1 to 5 percent for each mix did not significantly affect strength development in any of these mixes.

• Research Organization: Minnick (L.J.), Inc., Plymouth Meeting, PA (USA)
• DOE Contract Number: AC21-77ET10415
• OSTI ID: 5231741
• Report Number(s): DOE/ET/10415-T1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
014000 -- Coal
Lignite
& Peat-- Combustion
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
AEROSOL WASTES
BRIQUETTING
BUILDING MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL
COHERENT SCATTERING
COMBUSTION
DIFFRACTION
DISPERSIONS
ENERGY SOURCES
FABRICATION
FLUIDIZED-BED COMBUSTION
FLY ASH
FOSSIL FUELS
FUELS
GROUTING
ION EXCHANGE MATERIALS
MATERIALS
MIXTURES
MOLDING
OXIDATION
ROADS
SCATTERING
SOLID WASTES
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
WASTE PRODUCT UTILIZATION
WASTES
X-RAY DIFFRACTION