Impact Compacted Non-cement and Vibratory Placed Non-cement/partially-cement Concretes Containing Fluidized Bed and Pulverized Coal Combustions Residues

The two-part research study presented herein evaluates fresh and hardened properties of vibratory placed non-cement/partially-cement concretes, as well as impact compacted non-cement concretes, containing various dosages of pulverized coal combustion fly ash and fluidized bed combustion spent bed. The results of Part I of this study on vibratory placed non-cement/partially-cement concretes revealed lower early strengths than those of reference concrete, whereas their late strengths (90 and 180 days) were similar to or higher than those of reference concrete. The selected non-cement/partially-cement concretes produced higher expansion and lower drying shrinkage than those of the reference concrete. Abrasion resistance of non-cement and partially-cement mixtures under dry conditions were better than that of the reference concrete, whereas opposite results were obtained under wet conditions. Laboratory results of Part II on impact compacted non-cement concretes revealed higher compressive strength and resistance to internal sulfate attack with increasing coarse aggregate content. The strength, stiffness, and resistance to abrasion and freezing/thawing of impact compacted concretes improved with decreases in FBC spent bed to portland cement concrete (PCC) fly ash ratios, whereas opposite results were obtained for sulfate-induced expansions.

• Record URL:
  • https://doi.org/10.1061/(ASCE)MT.1943-5533.0000988
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • Copyright 2013 by the American Society of Civil Engineers 2013
• Authors:
  • Ghafoori, Nader
  • Najimi, Meysam
• Publication Date: 2015-7

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 27
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Combustion; Fluidized bed combustion; Freeze thaw durability; Portland cement concrete; Pulverized fly ash; Reinforced concrete; Vibration
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01500056
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Nov 25 2013 10:02AM