Laboratory investigation of lithium-bearing compounds for use in concrete.

Details

• Creators:
  Lane, D. S.
• Corporate Creators:
  United States. Federal Highway Administration ; Virginia. Commonwealth Transportation Board ; Virginia. Dept. of Transportation
• Subject/TRT Terms:
  • Lithium compounds
  • Concrete construction
  • Alkali-silica reactions
  • Concretes
  • Dosage
  • Evaluations
  • Expansions
  • Laboratory tests
  • Lithium hydroxide
  • Lithium nitrate
  More +
• Publication/ Report Number:
  VTRC-02-R16
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  Lithium nitrate and lithium hyroxide were evaluated in the laboratory to examine their effectiveness in controlling expansions resulting from alkali-silica reaction and their effect on concrete properties. The lithium compounds were more effective in highly accelerated tests using Pyrex as the aggregate than in concrete prism tests using a reactive Virginia aggregate. The effective dosage of lithium nitrate in the concrete prism test was higher than that typically recommended. Lithium nitrate had a benign effect on the strength, electrical resistance, drying shrinkage, and resistance to freezing and thawing. Similar results were obtained with lithium hydroxide, with the exception of a retarding effect on strength development. Using current sources of fly ash and slag is more effective in addressing problems with ASR than using lithium admixtures.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/15506/dot_15506_DS1.pdf
• File Type:
  [PDF - 411.44 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:32a15e7c4dfd181d8ed2fb8f31fcc0d3eeb911a619fe35e0a15ba6beb6b35a91