Published Online: 17
Page Count: 11
The Use of the Foam Index Test to Predict Air-Entraining Admixture Dosage in Concrete Containing Fly Ash: Part III—Development of a Standard Test Method: Proportions of Materials
Harris, Nathan J.
Engineer, Exponent Failure Analysis Associates, Menlo Park, CA
Hover, Kenneth C.
Professor, School of Civil and Environmental Engineering, Cornell University, Ithaca, NY
Folliard, Kevin J.
Associate Professor, Department of Civil Engineering, University of Texas, Austin, TX
Ley, M. Tyler
Assistant Professor, Civil and Environmental Engineering, Oklahoma State University, Stillwater, OK
(Received 29 November 2007; accepted 18 May 2008)
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 total water content, water-cementitious materials ratio, ash-cementitious materials ratio, and others. This study isolates several key factors and examines their influence on foam index test results. Recommendations for a standard test are proposed.
air-entrained concrete, air-entraining admixtures, fly ash, foam index, quality control
Paper ID: JAI101603
Title The Use of the Foam Index Test to Predict Air-Entraining Admixture Dosage in Concrete Containing Fly Ash: Part III—Development of a Standard Test Method: Proportions of Materials
Symposium , 0000-00-00
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