Inspection guide for column splice regions affected by premature concrete deterioration.

Details

• Alternative Title:
  Project title: lap splice and development length performance in ASR and/or DEF damaged ; concrete elements.
• Creators:
  Bracci, Joseph M.
• Corporate Creators:
  Texas A&M Transportation Institute ; Zachry Dept. of Civil Engineering
• Corporate Contributors:
  Texas. Dept. of Transportation ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Reinforced concrete pavements
  • Deterioration
  • Reactions in concrete
  • Alkali aggregate reactions
  • Ettringite
  • Bridges
  • Inspection
  • Flaw detection
• Publication/ Report Number:
  0-5722-P2
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Texas A&M Transportation Institute
• Abstract:
  This guideline aims to help bridge inspectors and engineers in identifying and assessing the ; capability of reinforced concrete column splice regions affected by varying degrees of premature ; concrete deterioration due to alkali-silica reaction (ASR) and delayed ettringite formation (DEF). ; This guideline is a condensed version of the final project reports by Bracci et al. (2012) and ; Bracci (2014), and also papers by Eck Olave et al. (2014a, 2014b). The author strongly ; encourages interested readers to review the final project reports and papers for more details and ; further explanations. ; This guideline begins by providing a brief overview of ASR and DEF, along with short ; summaries of the relevant literature from technical reports and journal publications. To assist ; bridge inspectors and engineers, some representative cracking observed in field structures ; throughout Texas is provided. Next, a summary of the experimental program performed as part ; of this research highlights the specimen exposure program (including concrete expansion and ; crack width measurements) and the results of the structural load testing of column splice ; specimens with varying degrees of primarily ASR deterioration. Findings and recommendations ; of the research are summarized at the end of the report.
  More +
• Format:
  PDF
• Funding:
  0-5722
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31229/dot_31229_DS1.pdf
• File Type:
  [PDF - 3.16 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e7b152f140bd1d48932749e81fddaf9b55a726939a3edf932e6b32079f22e0cf