Aggregate Contribution to Hot Mix Asphalt (HMA) Performance by Thomas D. White, Sam R. Johnson, John J. Tzenas, John J.

By Thomas D. White, Sam R. Johnson, John J. Tzenas, John J. Yzenas

STP 1412 makes a speciality of the impact of mixture houses on HMA functionality and covers quite a lot of mixture features. beneficial info is gifted on functionality of HMA designed with Superpave protocols and standards for either combos and aggregates.12 papers tackle: mixture sprucing as a security hindrance Contribution of the mineral combination parts to rutting resistance Superpave coarse and fantastic gradations Validity of the limited region greatest mixture sizes volume of airborne dirt and dust, particle form, and coarse and wonderful combination particle angularity. This publication is a priceless source for everybody within the paving that produces, specifies, and makes use of aggregates.

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Additional resources for Aggregate Contribution to Hot Mix Asphalt (HMA) Performance (ASTM special technical publication, 1412)

Sample text

WesTrack Performance - Interim Findings," Proceedings of the 8th International Conference on Asphalt Pavements, 1997, Vol. 1-[I,pp. 147-164. , Monismith, C. , Seeds, S. , Ashmore, S. , and Mitchell, T. , "WesTrack Full-Scale Test Track: Interim Findings," Journal of the Association of Asphalt Paving Technologists, 1998, Vol. 67, pp. 738-782. [3] Asphalt Institute, Performance Graded Asphalt Binder Specification and Testing, Superpave Series (SP-1), 1997, Asphalt Institute, Lexington, Kentucky.

The asphalt binder was tested according to AASHTO PP6, Practice for Grading or Verifying the Performance Grade of an Asphalt Binder, to ensure that it met the desired grade. A Pine Superpave Gyratory Compactor (SGC) was employed. The compactive effort specified in Superpave for a traffic level of 3-10 million Equivalent Single Axle Loads (ESAL) and an average design high air temperature of less than 39~ was used for all mixture designs CNinitial,Ndesign,and Nmaximumof 8, 96, and 152 gyrations, respectively).

Sebaaly4 Aggregate Contributions to the Performance of Hot Mix Asphalt at WesTrack Reference: Epps, A. , Hand, A. , Epps, J. , and Sebaaly, P. , "Aggregate Contributions to the Performance of Hot Mix Asphalt at WesTrack," Aggregate Contribution to Hot Mix Asphalt (HMA) Performance, ASTM STP 1412, T. D. White, S. R. Johnson, and J. J. , American Society for Testing and Materials, West Conshohocken, PA, 2001. Abstract: Unexpected performance of coarse-graded and crushed stone mixtures when compared to fine-graded and partially crushed gravel mixtures at WesTrack led to an examination of consensus aggregate properties for all mixtures used.

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