EVALUATION OF LABORATORY DRYING PROCEDURES RELEVANT TO FIELD CONDITIONS FOR CONCRETE SORPTIVITY MEASUREMENTS

The surface humidities of a limited set of field concretes during summer conditions in Ontario were measured prior to water absorption (sorptivity) testing. A series of alternative laboratory curing conditions was carried out on cores prior to laboratory sorptivity tests, to determine which would best mimic average field conditions (surface humidities greater than 40% and moisture contents greater than 1%). It was found that three days' oven drying at 50 degrees celsius followed by sealed drying for 4 days at 50 degrees celsius worked well. In addition, the moisture content at test was calibrated to measured sorptivity results.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3528769
• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • DESOUZA, S J
  • Hooton, R D
  • BICKLEY, J A
• Publication Date: 1997-12

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 59-63
• Serial:
  • Cement, Concrete and Aggregates
  • Volume: 19
  • Issue Number: 2
  • Publisher: American Society for Testing and Materials (ASTM)
  • ISSN: 0149-6123
  • Serial URL: http://journalsip.astm.org/JOURNALS/CEMENT/cca_home.html

Subject/Index Terms

• TRT Terms: Absorption; Absorptivity; Concrete; Concrete curing; Field tests; Humidity; Laboratory tests; Moisture content; Oven drying; Summer
• Geographic Terms: Ontario (Province)
• Old TRIS Terms: Field conditions; Sealed drying
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00745151
• Record Type: Publication
• Contract Numbers: CMS-9414243
• Files: TRIS
• Created Date: Jan 16 1998 12:00AM