Intermediate-scale tests of sodium interactions with calcite and dolomite aggregate concretes. [LMFBR]

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Two intermediate-scale tests were performed to compare the behavior of calcite and dolomite aggregate concretes when attacked by molten sodium. The tests were performed as part of an interlaboratory comparison between Sandia National Laboratories and Hanford Engineering Development Laboratories. Results of the tests at Sandia National Laboratories are reported here. The results show that both concretes exhibit similar exothermic reactions with molten sodium. The large difference in reaction vigor suggested by thermodynamic considerations of CO/sub 2/ release from calcite and dolomite was not realized. Penetration rates of 1.4 to 1.7 mm/min were observed for short periods of time with reaction ... continued below

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Randich, E. & Acton, R.U. September 1, 1983.

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Description

Two intermediate-scale tests were performed to compare the behavior of calcite and dolomite aggregate concretes when attacked by molten sodium. The tests were performed as part of an interlaboratory comparison between Sandia National Laboratories and Hanford Engineering Development Laboratories. Results of the tests at Sandia National Laboratories are reported here. The results show that both concretes exhibit similar exothermic reactions with molten sodium. The large difference in reaction vigor suggested by thermodynamic considerations of CO/sub 2/ release from calcite and dolomite was not realized. Penetration rates of 1.4 to 1.7 mm/min were observed for short periods of time with reaction zone temperatures in excess of 800/sup 0/C during the energetic attack. The penetration was not uniform over the entire sodium-concrete contact area. Rapid attack may be localized due to inhomogeneities in the concrete. The chemical reaction zone is less then one cm thick for the calcite concrete but is about seven cm thick for the dolomite concrete.

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NTIS, PC A06/MF A01; 1 - GPO.

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  • Other Information: Portions are illegible in microfiche products

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  • Other: DE84001154
  • Report No.: NUREG/CR-3288
  • Report No.: SAND-83-1064
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/5724039 | External Link
  • Office of Scientific & Technical Information Report Number: 5724039
  • Archival Resource Key: ark:/67531/metadc1093616

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  • September 1, 1983

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  • Feb. 10, 2018, 10:06 p.m.

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  • May 18, 2018, 1:47 p.m.

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Randich, E. & Acton, R.U. Intermediate-scale tests of sodium interactions with calcite and dolomite aggregate concretes. [LMFBR], report, September 1, 1983; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc1093616/: accessed June 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.