An investigation on roadbase materials using US Corps of Engineers gyratory testing machine
This research involved a laboratory investigation of roadbase materials using the U.S. Corps of Engineers gyratory testing machine (GTM). The materials studied included stabilised, recycled and quarried granular pavement materials. The investigation focused on the assessment of the workability of mixes, their resilient modulus, shear strength and moisture content in order to better predict field behaviour and performance. Effective laboratory assessment of such properties has potential to minimise the expense and time involved in undertaking field trials of new and unproven materials. The experimental procedure included GTM compaction and correlation against dynamic compaction hammer techniques and other test parameters such as indirect tensile test, repeated load triaxial and unconfined compression testing. Optical microscopy techniques were used to observe the kneading compaction for foamed bitumen stabilised material. Finite element analysis was used to interpret the difference of confining pressure from a steel mould for GTM gyratory compaction vs. specimens enclosed in a flexible membrane inside a triaxial cell in accordance with Austroads repeated load triaxial testing procedures. (a) For the covering entry of this conference, please see ITRD abstract no. E220164.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/187659263X
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Corporate Authors:
ARRB
Melbourne, Victoria Australia -
Authors:
- HAZELL, D
- Zhang, J S
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Conference:
- ARRB Conference, 24th, 2010
- Location: Melbourne , Australia
- Date: 2010-10-12 to 2010-10-15
- Publication Date: 2010-10
Language
- English
Media Info
- Pagination: 13P
Subject/Index Terms
- TRT Terms: Base course (Pavements); Conferences; Pavements; Test procedures; Tests
- ITRD Terms: 4555: Material (constr); 5925: Properties
- Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01332500
- Record Type: Publication
- Source Agency: ARRB
- ISBN: 187659263X
- Files: ITRD, ARRB, ATRI
- Created Date: Mar 15 2011 10:56AM