Heat of hydration of double-shell slurry feed grouts

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Description

Samples of double-shell slurry feed (DSSF) grout (used in solidifying the waste stored in DS tanks at Hanford) were prepared and tested in adiabatic calorimeters to determine the effect of waste concentration and dry blend variations on the heat of hydration. Changes in DSSF waste concentration had the greatest impact on the overall heat of hydration of the grouts. Grouts prepared with dilute (100 times) DSSF had temperature rises up to 37 C less than with grouts prepared that for undiluted DSSF (15 C vs 52 C). All the grouts prepared with undiluted DSSF had temperature rises that exceeded 45 ... continued below

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19 p.

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Lokken, R.O. December 1, 1992.

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  • Pacific Northwest Laboratory
    Publisher Info: Pacific Northwest Lab., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

Samples of double-shell slurry feed (DSSF) grout (used in solidifying the waste stored in DS tanks at Hanford) were prepared and tested in adiabatic calorimeters to determine the effect of waste concentration and dry blend variations on the heat of hydration. Changes in DSSF waste concentration had the greatest impact on the overall heat of hydration of the grouts. Grouts prepared with dilute (100 times) DSSF had temperature rises up to 37 C less than with grouts prepared that for undiluted DSSF (15 C vs 52 C). All the grouts prepared with undiluted DSSF had temperature rises that exceeded 45 C. Partial neutralization of the DSSF with acids resulted in delayed reactions and lower temperature rises than that occurring in the reference grout. The temperature rise of a DSSF grout prepared with waste partially neutralized with HCl was 28 C after 300 hr hydration. Temperature rise for a grout made with DSSF partially neutralized with H3PO4 was 43 C. These values compare with a temperature rise of >52 C for a grout made with untreated DSSF. Decreasing the mix ratio from 9 lb/gal to 7.5 lb/gal did not significantly reduce the adiabatic temperature rise of grouts prepared with partially neutralized DSSF waste.

Physical Description

19 p.

Notes

INIS; OSTI as DE97003995

Source

  • Other Information: PBD: Dec 1992

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  • Other: DE97003995
  • Report No.: PNL--7860
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/479175 | External Link
  • Office of Scientific & Technical Information Report Number: 479175
  • Archival Resource Key: ark:/67531/metadc679301

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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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Creation Date

  • December 1, 1992

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • May 16, 2016, 6:26 p.m.

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Lokken, R.O. Heat of hydration of double-shell slurry feed grouts, report, December 1, 1992; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc679301/: accessed August 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.