Evaluation of Marshall and Hveem
Mix Design Procedures for Local Use
H. AL-ABDUL WAHHAB AND ZIAUDDIN A. KHAN
TRANSPORTATION RESEARCH RECORD
Abstract:
Conventional methods of mix design can sometimes result in materials
that do not perform satisfactorily. In countries that experience extremes of
temperature such as Saudi
Arabia, the resultant failures can be
severe; often occurring soon after the road is opened to traffic. A laboratory
evaluation of Marshall
and Hveem mix designs was undertaken with an objective
of minimizing permanent deformation in asphaltic
layers. Five different gradations were selected based on Ministry
of Communications specifications. The design procedures were examined,
and the mixes were subjected to dynamic and static testing to evaluate
resilient modulus, split tensile strength, stiffness, and creep
compliance characteristics. The test results indicated that Hveem
mixes possessed better engineering properties than those designed by the Marshall method because
the Hveem method can better identify mixes with high
rutting susceptibility. Recommendations for additional testing techniques could
be used for both mix design and quality control purposes.