SEDL / STP / STP252-EB / STP47177S

Triaxial Testing of Bituminous Mixtures

Goetz, W. H.
Research Engineer, Purdue University, Lafayette, Ind.

Schaub, J. H.
Research Engineer, Purdue University, Lafayette, Ind.

Pages: 19    Published: Jan 1959

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Abstract

For approximately twenty-five years the attention of paving design engineers has been directed in part towards the use of a triaxial shear strength method of test to evaluate the properties of bituminous mixtures. Interest in this form of test, particularly as a means of evaluating fundamental strength properties of bituminous mixtures, has become increasingly great. At the present time there are several techniques in use that utilize the principles of triaxial shear testing for the design and strength evaluation of bituminous concrete mixtures. The purpose of this paper is to summarize the status of triaxial testing as a mix design and research tool and to present a résumé of the various triaxial test procedures that are in use.