Laboratory measurement of the dynamic properties of fly ash

M. E. Kalinski, A. D. Wallace

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations


Fly ash is produced from the combustion of coal at power plants. Fly ash is fine-grained, well-rounded, cohesionless, and possesses a specific gravity of around 2.2. Fly ash is often placed hydraulically in fills in a loose, nearly saturated state. Therefore, it is highly susceptible to liquefaction, and it is very important to accurately estimate its dynamic properties when assessing the behavior of fly ash fills under dynamic loading. Herein, laboratory measurements of the dynamic properties of class F fly ash were performed on reconstituted specimens using the free-free resonant column method. These results indicate that the shear wave velocity of fly ash is typically around 110-150 m/s, and increases with increasing confining stress. Material damping of fly ash typically ranges from 2-5. These results can be used to estimate the dynamic properties of fly ash for performing site response analyses on fly ash deposits.

Original languageEnglish
Title of host publicationGeo-Frontiers 2011
Subtitle of host publicationAdvances in Geotechnical Engineering - Proceedings of the Geo-Frontiers 2011 Conference
Number of pages7
Edition211 GSP
StatePublished - 2011
EventGeo-Frontiers 2011: Advances in Geotechnical Engineering - Dallas, TX, United States
Duration: Mar 13 2011Mar 16 2011

Publication series

NameGeotechnical Special Publication
Number211 GSP
ISSN (Print)0895-0563


ConferenceGeo-Frontiers 2011: Advances in Geotechnical Engineering
Country/TerritoryUnited States
CityDallas, TX


  • Fly ash
  • Material properties
  • Measurement

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


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