MEASUREMENT OF PERMANENT DEFORMATION OF ASPHALT USING THE VACUUM TRIAXIAL TEST

The permanent deformation of asphalt (rutting) is the irreversible effects of applied load due to passing traffic and once it occurred it cannot be altered or adjusted. It is important to measure the permanent deformation for bituminous mixtures to ensure the good function and serviceability of road pavements. Currently new European (EN) Standards are under development reflecting the advances made in asphalt materials and their application in pavement design. The present investigation presents the results of a testing programme to determine the permanent deformation of stone mastic asphalt (SMA) using the vacuum triaxial cyclic compression test as proposed by the draft European standard (prEN 12697-25). In this test a rubber membrane was used to apply a confining stress using vacuum. The confining stress is applied to simulate the lateral stresses usually exerted on the specimens by the adjacent materials of the road pavement. The results derived from the vacuum triaxial test were then compared with results derived from a wheel tracker test on core specimens obtained from a road pavement laid with similar bituminous mixture. For the covering abstract see ITRD E121480.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9080288446
• Corporate Authors:

  FOUNDATION EURASPHALT

  PO BOX 255
  BREUKELEN,     3620 AG
• Authors:
  • BYRNE, D A
  • Khalaf, F M
  • WALSH, G
• Publication Date: 2004

Language

• English

Media Info

• Features: References;
• Pagination: p. 1622-8
• Serial:
  • PROCEEDINGS OF THE 3RD EURASPHALT AND EUROBITUME CONGRESS HELD VIENNA, MAY 2004
  • Volume: 2
  • Publisher: FOUNDATION EURASPHALT

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Conferences; Deformation; Evaluation and assessment; Measurement; Rutting; Tests; Triaxial shear tests; Vacuum
• ITRD Terms: 4967: Bituminous mixture; 8525: Conference; 5595: Deformation; 9020: Evaluation (assessment); 6136: Measurement; 3081: Rutting (wheel); 6255: Test; 5566: Triaxial; 6704: Vacuum
• Subject Areas: Data and Information Technology; Planning and Forecasting;

Filing Info

• Accession Number: 00981010
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-802884-4-6
• Files: ITRD
• Created Date: Nov 3 2004 12:00AM