Experimental Asymptotic Analysis of Expansion of Concrete Exposed to Sulfate Attack

Existing mathematical model limitations in sulfate attack-exposed concrete damage prediction are reviewed, and sodium sulfate solution-exposed concrete expansion scaling laws are proposed. A definite scaling law is followed in the expansion of concrete sample whose water-cement (w/c) ratios are high and moderate (that is, greater than 0.5) after an initiation time. That the scaling exponent is dependent on the cement composition but not the original w/c is demonstrated in the research results. Initiation time is a function of both cement composition and the w/c. This w/c and type of cement dependency can be expressed by a damage potential (P sub d) index, which gives a sensitivity measure to a given concrete mixture proportion's damage. No intermediate asymptotic behavior was exhibited by concrete samples cast with sulfate-resistant cement and a low w/c and tested over a 40 year period; rather saturation curves were observed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Authors:
  • Monteiro, Paulo J M
  • Kurtis, Kimberly E
• Publication Date: 2008

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 62-71
• Serial:
  • ACI Materials Journal
  • Volume: 105
  • Issue Number: 1
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Asymptotic expansion; Cement; Concrete; Forecasting; Water cement ratio
• Uncontrolled Terms: Damage analysis; Scaling laws; Sulfate attack; Sulfate solutions
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01090542
• Record Type: Publication
• Report/Paper Numbers: 105-M08
• Files: TRIS
• Created Date: Mar 21 2008 8:48AM