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

Volume 5, Issue 7 (July 2008)

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ISSN: 1546-962X
CODEN: JAIOAD
Published Online: 17 July 2008
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)

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 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.

Keywords:
air-entrained concrete, air-entraining admixtures, fly ash, foam index, quality control

Paper ID: JAI101603
DOI: 10.1520/JAI101603
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Author 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 Committee C09

		SEDL / Journals / Journal of ASTM International (JAI) / Citation Page Volume 5, Issue 7 (July 2008) Click here to download this paper now for $25 PDF (228K) View License Agreement ISSN: 1546-962X CODEN: JAIOAD Published Online: 17 July 2008 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) 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 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. Keywords: air-entrained concrete, air-entraining admixtures, fly ash, foam index, quality control Paper ID: JAI101603 DOI: 10.1520/JAI101603 ASTM International is a member of CrossRef. Author 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 Committee C09