The durability of stabilized flue gas desulfurization sludge

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The effects of freeze-thaw cycling on the strength and durability of samples of compacted, stabilized, wet flue gas desulfurization (FGD) by-products are reported. The results of laboratory tests show a clear relationship between higher water contents and increasing vulnerability to freeze-thaw effects. In the samples tested, water contents at or above 40% were characteristic of all the freeze-thaw specimens exhibiting low strengths. Lime content and curing time were also shown to have a marked influence on the durability of the FGD material. It was shown that samples can maintain good strength under freeze-thaw conditions provided 5% lime was added before ... continued below

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5 p.

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Chen, X.; Wolfe, W.E. & Hargraves, M.D. December 31, 1995.

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Description

The effects of freeze-thaw cycling on the strength and durability of samples of compacted, stabilized, wet flue gas desulfurization (FGD) by-products are reported. The results of laboratory tests show a clear relationship between higher water contents and increasing vulnerability to freeze-thaw effects. In the samples tested, water contents at or above 40% were characteristic of all the freeze-thaw specimens exhibiting low strengths. Lime content and curing time were also shown to have a marked influence on the durability of the FGD material. It was shown that samples can maintain good strength under freeze-thaw conditions provided 5% lime was added before compaction and the time from compaction to first freeze was at least 60 days.

Physical Description

5 p.

Notes

OSTI as DE96006769

Source

  • University of Kentucky ash utilization conference, Lexington, KY (United States), 23-25 Oct 1995

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  • Other: DE96006769
  • Report No.: DOE/MC/28060--96/CO636
  • Report No.: CONF-9510328--3
  • Grant Number: FC21-91MC28060
  • Office of Scientific & Technical Information Report Number: 207545
  • Archival Resource Key: ark:/67531/metadc664820

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 31, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • June 24, 2016, 2:09 p.m.

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Chen, X.; Wolfe, W.E. & Hargraves, M.D. The durability of stabilized flue gas desulfurization sludge, article, December 31, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc664820/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.