Investigation of Large-Stone Mixtures

Loading...
Thumbnail Image

View/Download File

Persistent link to this item

Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

Investigation of Large-Stone Mixtures

Published Date

1993-12

Publisher

Type

Report

Abstract

This report presents the results of a one-year study on large-stone asphalt mixtures (LSAM). A thorough review of the existing technology regarding materials, mix design, and performance is included. This study expanded upon the body of knowledge by exploring an easier means of mixture design and explaining the fundamental properties of large-stone mixtures with respect to the aggregate gradation. It was found that a dense LSAM gradation possesses better strength and durability properties than a more open LSAM gradation. Furthermore, a mix design methodology is presented wherein the optimum asphalt content for the mixture may be determined on the basis of aggregate and compacted sample properties. This eliminates the need for cumbersome Marshall stability and flow measurements. The frequency dependency of large-stone mixtures is more pronounced at low temperatures than that of a conventional mixture. The tendency for thermal cracking should be lower for a LSAM than for a conventional mixture. Finally, recommendations are made to develop a permissive specification for LSAM, and to adopt the volumetric mixture design procedure outlined in the report.

Description

Related to

Replaces

License

Collections

Series/Report Number

MnDOT 94-09

Funding information

Minnesota Department of Transportation

Isbn identifier

Doi identifier

Previously Published Citation

Other identifiers

Suggested citation

Newcomb, Dave; Wei, Zhang; Stroup-Gardiner, Mary. (1993). Investigation of Large-Stone Mixtures. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/156871.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.