NEW WATER PERMEABILITY TEST SCHEME FOR CONCRETE

This paper proposes an efficient test scheme for concrete permeability based on the principle of the test of water penetration depth. By utilizing an autoclave, at least 18 concrete samples can be evaluated simultaneously under the same operating condition. Experimental results show that the proposed test scheme yields permeability measurements with high reproducibility. Testing conditions equivalent to those of a conventional flexible wall permeameter are simulated by fixing a water reservoir on the top and an air buffer at the bottom of the test sample. In addition, the whole is put under uniformly applied pressure inside the autoclave. Boundary leakage in the traditional concrete permeability test is eliminated by a new vacuum coating method that offers an excellent bonding between the concrete surface and the resin coating compound. Thus, the proposed test scheme not only greatly increases the testing efficiency, but also improves the consistency of the results of the water permeability test on concrete.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Supplemental Notes:
  • Partial financial support was provided by Grant RI94/95.EG07.
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Li, Zhihao
  • Chau, C K
• Publication Date: 2000-1

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 84-90
• Serial:
  • ACI Materials Journal
  • Volume: 97
  • 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: Coatings; Concrete; Concrete tests; Durability; Experiments; Fly ash; Mix design; Permeability; Permeameters; Proportioning; Silica fume; Slag; Vacuum; Water
• Uncontrolled Terms: Autoclaves
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00792327
• Record Type: Publication
• Contract Numbers: CMS-9413725, NA47408-95-C-0225, 28
• Files: TRIS
• Created Date: May 11 2000 12:00AM