Mechanical Properties of Alkali-Silica Reaction-Affected Concrete

Experiments focusing on the mechanical behavior of plain alkali-silica reaction (ASR)-affected concrete were undertaken. Cube specimens, 150 x 150 x 150 mm (6 x 6 x 6 in.) in dimensions, standard 100 mm (4 in.) F concrete cylinders, and 75 x 75 x 285 mm (3 x 3 x 11.2 in.) concrete prisms were cast with nonreactive aggregate, reactive fine aggregate (Jobe-Newman), or reactive coarse aggregate (Spratt). To accelerate the rate of the reaction, the specimens were conditioned under elevated humidity and temperature. The investigation was designed to allow the development of differential expansion along orthogonal directions in cube specimens as a result of different levels of externally applied stress. Cylindrical cores were extracted along each differently loaded direction from cubes experiencing similar stress conditions and were tested in compression and tension. In addition, tests were performed on specimens that were conditioned in a stress-free state. It was found that ASR-induced deterioration affected differently the compressive strength, modulus of elasticity, and tensile strength of the concrete cured in stress-free conditions. Tests on cores extracted from the restrained cubes revealed that the mechanical properties of ASR-affected concrete were direction-dependent as anisotropic degradation of the mechanical properties developed.

• Record URL:
  http://dx.doi.org/10.14359/51734198
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Supplemental Notes:
  • © 2022, American Concrete Institute. Abstract reprinted with permission from the American Concrete Institute.
• Authors:
  • Ferche, Anca C
  • Vecchio, Frank J
• Publication Date: 2022-1

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 251-262
• Serial:
  • ACI Materials Journal
  • Volume: 119
  • Issue Number: 1
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Alkali silica reactions; Concrete; Deterioration; Mechanical properties; Tensile strength
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01856436
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 29 2022 9:27AM