The use of lithium to prevent or mitigate alkali-silica reaction in concrete pavements and structures.

Details

• Creators:
  Thomas, Michael D. A. ; Fournier, Benoit ; Folliard, Kevin J. ; Ideker, Jason H. ; Resendez, Yadhira
• Corporate Creators:
  Transtec Group, Inc.
• Subject/TRT Terms:
  • Alkali silica reactions
  • Reactions in concrete
  • Lithium
  • Fresh concrete
  • Hard materials
  • Case studies
  • Laboratory studies
  • Laboratory tests
  • Field tests
  • Field studies
  More +
• Publication/ Report Number:
  FHWA-HRT-06-133
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report.
• Corporate Publisher:
  Turner-Fairbank Highway Research Center
• Description:
  Alkali-silica reaction (ASR) was first identified as a form of concrete deterioration in the late 1930s
  
  (Stanton 1940). Approximately 10 years later, it was discovered that lithium compounds can be used to
  
  control expansion due to ASR. There has recently been increased interest in using lithium technologies to
  
  both control ASR in new concrete and to retard the reaction in existing ASR-affected structures.
  
  This facts book provides information on lithium, its origin and properties, and on its applications. The
  
  mechanism of alkali-silica reaction is discussed together with methods of testing to identify potentially
  
  alkali-silica reactive aggregates. Traditional methods for minimizing the risk of damaging ASR are
  
  presented; these include the avoidance of reactive aggregates, controlling the levels of alkali in concrete
  
  and using supplementary cementing materials such as fly ash, slag and silica fume. The final two sections
  
  of the facts book discuss the use of lithium, first as an admixture for new concrete construction and second
  
  as a treatment for existing concrete structures affected by ASR.
• Format:
  PDF
• Funding:
  DTFH61-02-C-00097
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/774/dot_774_DS1.pdf
• File Type:
  [PDF - 2.80 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:8c874e18393d2cd10454f2be7be693e5f08e9bf44cf80fab1417926612ee63348251542c3b2f46b02a37eb2c5b5ad176f7ce2c192ace68f0dd81394bdc3d7839