CHLORITE: A DELETERIOUS CONSTITUENT WITH RESPECT TO FREEZE-THAW DURABILITY OF CONCRETE AGGREGATES

Severe freeze-thaw losses in amounts between 30 to 40 percent occurred in testing hydrothermally altered (propylitized) volcanic rocks containing more than 20 percent chlorite at two dams. Further analyses however indicate that the losses are structural with seams, clots and fissures of chlorite (scf structure) being the culprit. Propylitization with production of chlorite is not indicative of poor freeze-thaw durability as rock containing between 20 to 30 percent chlorite, but not possessing the scf structure, exhibits good freeze-thaw durability. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Higgs, N B
• Publication Date: 1987-9

Media Info

• Features: Photos; References; Tables;
• Pagination: p. 793-804
• Serial:
  • Cement and Concrete Research
  • Volume: 17
  • Issue Number: 5
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Chlorites; Concrete; Concrete aggregates; Durability; Freeze thaw durability; Volcanic rock
• Old TRIS Terms: Freezing thawing effects
• ITRD Terms: 4577: Aggregate; 4755: Concrete; 5211: Cracking; 5910: Durability; 2577: Freezing thawing cycle; 9040: Loss; 4154: Rock; 6255: Test; 4002: Volcanic
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00478760
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jan 31 1989 12:00AM