Alkali Silica Reactivity (ASR) Risk Assessment and Mitigation in Tennessee

Alkali-silica reaction (ASR) is recognized as a major cause of concrete deterioration. Identifying the aggregate reactivity to ASR is one of the most efficient ways for preventing concrete cracking damage in practice. Many aggregates, especially the surface aggregates, used in Tennessee have a relatively high siliceous content (e.g. gravels, siliceous limestones, granites, and quartzite). Aggregates with ASR potential in Tennessee could have been used in the existing concrete structures and will be probably used even more in the future high-volume transportation projects. This report summarizes the findings of a two-phase research project to assess and mitigate the risk of Alkali-Aggregate Reaction (AAR) in the state of Tennessee. ASR reactivity of surface aggregates from 76 different local sources in Tennessee was evaluated in Phase I. Mitigation alternatives to minimize the ASR risk of reactive aggregates were proposed in Phase II. Category guideline on the ASR reactivity property of the aggregates within Tennessee has been developed. A statewide aggregate ASR risk database with detailed field and laboratory performance is presented which can be used to prevent ASR cracking damage of statewide transportation structures.

• Record URL:
  • https://www.tn.gov/content/dam/tn/tdot/long-range-planning/research/final-reports/res2016-final-reports/RES2016-03_Final_Report_Approved.pdf
• Corporate Authors:

  University of Tennessee, Knoxville

  Department of Civil and Environmental Engineering
  851 Neyland Drive
  Knoxville, TN  United States  37996-2313

  Tennessee Department of Transportation

  Nashville, TN  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Abd-Elssamd, Ammar
  • Ma, Z John
• Publication Date: 2021-11

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Maps; Photos; References; Tables;
• Pagination: 102p

Subject/Index Terms

• TRT Terms: Aggregates; Alkali carbonate reactions; Alkali silica reactions; Concrete pavements; Pavement cracking; Risk assessment
• Geographic Terms: Tennessee
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01833511
• Record Type: Publication
• Report/Paper Numbers: RES2016-03
• Contract Numbers: RES2016-03
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Jan 24 2022 10:49AM