ALKALI-AGGREGATE REACTION IN MAINE

Evidence of alkali aggregate reaction has been observed in thirty year old structures located in south-western Maine. The survey contained in this report covers the aggregate presently being used in portland cement concrete for Maine Department of Transportation structures. The testing was performed by atomic absorption spectrophotometry for the determination of the existence of soluble silica. Analysis of the developed data indicated that none of the aggregates presently in use contain sufficient soluble silica to be considered deleterious because of silica alkali reactivity.

• Corporate Authors:

  Maine Department of Transportation

  Materials and Research Division, Box 1208, Hogan Road
  Bangor, ME  United States  04402
• Authors:
  • Epstein, G
  • Stevens, E R
• Publication Date: 1974

Media Info

• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Aggregates; Alkali aggregate reactions; Portland cement concrete; Silica; Spectrophotometers
• Old TRIS Terms: Atomic absorption; Spectophotometry
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00082852
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: #74-12
• Files: TRIS, USDOT, STATEDOT
• Created Date: Apr 8 1975 12:00AM