Use of fluidized bed combustion ash in full depth reclamation

Shervin Jahangirnejad, Dennis Morian, Barry Scheetz, Mansour Solaimanian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The pozzolanic nature of fly ash makes it an excellent material for partial replacement of hydraulic cement in many road construction applications. This paper presents such an application for a specific type of cementitious fly ash from a power generating plant using fluidized bed combustion (FBC) called FBC ash. The Portland cement-FBC ash combination was used in full depth reclamation (FDR) of a low volume road in Pennsylvania. The initial mixture design for FDR was conducted for 100% cement as the chemical stabilizer, optimizing the water and cement contents through an engineered design process. Subsequent to the development of the initial mixture design, 50% of the cement was replaced by FBC ash and density and unconfined compressive strength tests were conducted on the cement-FBC ash blend to determine the impact of this replacement on strength and density. Construction of this cement-FBC ash FDR and the all-cement FDR were conducted successfully. Results from unconfined compressive tests on field cores obtained after construction indicated that specimens obtained from cement-FBC ash sections had slightly higher strength than the all-cement specimens.

Original languageEnglish (US)
Title of host publicationIFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015
PublisherAmerican Society of Civil Engineers (ASCE)
Pages419-428
Number of pages10
VolumeGSP 256
ISBN (Electronic)9780784479087
DOIs
StatePublished - 2015
EventInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015 - San Antonio, United States
Duration: Mar 17 2015Mar 21 2015

Other

OtherInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015
CountryUnited States
CitySan Antonio
Period3/17/153/21/15

Fingerprint

Ashes
Fluidized bed combustion
Reclamation
Cements
cement
ash
combustion
Fly ash
fly ash
replacement
Road construction
Portland cement
road construction
Compressive strength

All Science Journal Classification (ASJC) codes

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

Cite this

Jahangirnejad, S., Morian, D., Scheetz, B., & Solaimanian, M. (2015). Use of fluidized bed combustion ash in full depth reclamation. In IFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015 (Vol. GSP 256, pp. 419-428). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784479087.042
Jahangirnejad, Shervin ; Morian, Dennis ; Scheetz, Barry ; Solaimanian, Mansour. / Use of fluidized bed combustion ash in full depth reclamation. IFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015. Vol. GSP 256 American Society of Civil Engineers (ASCE), 2015. pp. 419-428
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Jahangirnejad, S, Morian, D, Scheetz, B & Solaimanian, M 2015, Use of fluidized bed combustion ash in full depth reclamation. in IFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015. vol. GSP 256, American Society of Civil Engineers (ASCE), pp. 419-428, International Foundations Congress and Equipment Expo 2015, IFCEE 2015, San Antonio, United States, 3/17/15. https://doi.org/10.1061/9780784479087.042

Use of fluidized bed combustion ash in full depth reclamation. / Jahangirnejad, Shervin; Morian, Dennis; Scheetz, Barry; Solaimanian, Mansour.

IFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015. Vol. GSP 256 American Society of Civil Engineers (ASCE), 2015. p. 419-428.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Jahangirnejad S, Morian D, Scheetz B, Solaimanian M. Use of fluidized bed combustion ash in full depth reclamation. In IFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015. Vol. GSP 256. American Society of Civil Engineers (ASCE). 2015. p. 419-428 https://doi.org/10.1061/9780784479087.042