Behavior of Aggregate in the Washington Degradation Test

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Volume 5, Issue 1 (January 1977)

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ISSN: 0090-3973
Page Count: 10

Behavior of Aggregate in the Washington Degradation Test
Goonewardane, K
Research fellow, University of New South Wales, School of Highway Engineering, N.S.W.

Abstract

The variations of the Washington degradation test values with particle sizes and times of agitation were studied on some samples of aggregate. The sand equivalent measuring technique was modified to read fines produced. The study has established that the Washington degradation test is a clay leaching test dependent on surface area of charge. Surface attrition also occurs. A mathematical model is proposed which agrees with the samples considered.

Keywords:
aggregates, degradation, clays, weathering, sands, Washington degradation test, clay in aggregates

Paper ID: JTE10530J
DOI: 10.1520/JTE10530J
ASTM International is a member of CrossRef.

Author Title Behavior of Aggregate in the Washington Degradation Test Symposium , 0000-00-00 Committee D04

		Home Journals STPs Manuals Topics Subscriptions/Pricing Digital Library / Journals / Journal of Testing and Evaluation (JTE) / Citation Page Volume 5, Issue 1 (January 1977) Click here to download this paper now for $25 PDF (264K) View License Agreement ISSN: 0090-3973 Page Count: 10 Behavior of Aggregate in the Washington Degradation Test Goonewardane, K Research fellow, University of New South Wales, School of Highway Engineering, N.S.W. Abstract The variations of the Washington degradation test values with particle sizes and times of agitation were studied on some samples of aggregate. The sand equivalent measuring technique was modified to read fines produced. The study has established that the Washington degradation test is a clay leaching test dependent on surface area of charge. Surface attrition also occurs. A mathematical model is proposed which agrees with the samples considered. Keywords: aggregates, degradation, clays, weathering, sands, Washington degradation test, clay in aggregates Paper ID: JTE10530J DOI: 10.1520/JTE10530J ASTM International is a member of CrossRef. Author Title Behavior of Aggregate in the Washington Degradation Test Symposium , 0000-00-00 Committee D04