Journal Published Online: 17 July 2008
Volume 5, Issue 7

The Use of the Foam Index Test to Predict Air-Entraining Admixture Dosage in Concrete Containing Fly Ash: Part II—Development of a Standard Test Method: Apparatus and Procedure

CODEN: JAIOAD

Abstract

The foam index test can be useful for predicting air-entraining admixture (AEA) dosage in concrete or for evaluating AEA interaction with other mixture ingredients. The test is sensitive to several factors including container type and fullness, volume of materials, agitation, pipette precision, and others. This study isolates several key factors such as container dimensions and fullness, mixing procedure, time permitted for AEA-cm-water interaction, and time permitted for drainage of unstable foam; and examines their influence on foam index test results. Recommendations for a standard test are proposed.

Author Information

Harris, Nathan
Exponent Failure Analysis Associates, Menlo Park, CA
Hover, Kenneth
Cornell University, Ithaca, NY
Folliard, Kevin
University of Texas, Austin, TX
Ley, M.
Civil and Environmental Engineering, Oklahoma State University, Stillwater, OK
Pages: 15
Price: $25.00
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Stock #: JAI101602
ISSN: 1546-962X
DOI: 10.1520/JAI101602