Kinetics of fly ash beneficiation by carbon burnout. Quarterly report, October 1996--December 1996

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Description

The presence of carbon in fly ash requires an increase in the dosage of the air-entraining admixture for concrete mix, and may cause the admixture to lose efficiency. Specifying authorities for the concrete producers have set maximum allowable levels of residual carbon. These levels are the so called {open_quotes}Loss On Ignition{close_quotes} (LOI). The concrete producer`s day-to-day purchasing decisions sets the LOI at 4%. The objective of the project is to investigate the kinetics of oxidation of residual carbon present in coal fly ash as a possible first step toward producing low-carbon fly ash from high-carbon, low quality fly ash.

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14 p.

Creation Information

Dodoo, J.N.; Okoh, J.M. & Diaz, A. June 1, 1997.

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Description

The presence of carbon in fly ash requires an increase in the dosage of the air-entraining admixture for concrete mix, and may cause the admixture to lose efficiency. Specifying authorities for the concrete producers have set maximum allowable levels of residual carbon. These levels are the so called {open_quotes}Loss On Ignition{close_quotes} (LOI). The concrete producer`s day-to-day purchasing decisions sets the LOI at 4%. The objective of the project is to investigate the kinetics of oxidation of residual carbon present in coal fly ash as a possible first step toward producing low-carbon fly ash from high-carbon, low quality fly ash.

Physical Description

14 p.

Notes

OSTI as DE97053046

Source

  • 22. international technical conference on coal utilization and fuel systems, Clearwater, FL (United States), 17-20 Mar 1997

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  • Other: DE97053046
  • Report No.: CONF-970310--1
  • Grant Number: FG22-94MT94016
  • DOI: 10.2172/501555 | External Link
  • Office of Scientific & Technical Information Report Number: 501555
  • Archival Resource Key: ark:/67531/metadc695361

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • June 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 11, 2015, 12:55 p.m.

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Dodoo, J.N.; Okoh, J.M. & Diaz, A. Kinetics of fly ash beneficiation by carbon burnout. Quarterly report, October 1996--December 1996, report, June 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc695361/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.