Influence of specimen preparation onto the mechanical behaviour of asphalt aggregate mixtures

The paper presents the results of examinations about mechanical properties of specimen which were compacted in the laboratory by using the Marshall-compactor (impact compactor), by gyratory compactor, by slab compactor using a roller above vertical sliding plates (blade compactor), by slab compactor using a roller-sector (roller-sektor compactor) as well as cores which were compacted by rollers in the field. To predict the resistance against permanent deformation there were conducted uniaxial static creep tests, repeated load creep tests and wheel tracking tests. To predict low temperature cracking there were carried out tensile tests and cooling down tests. The comparison of the test results shows, that there exist a great influence of the compaction procedure onto the mechanical properties, moreover among some of the compaction methods produce specimens without any practice-adequate properties. The scientific findings lead to the recommendation to define performance requirements in the specifications only in connection with the procedure of compaction.

• Authors:
  • Renken, P
• Conference:
  • Eurasphalt and Eurobitume Congress, 2nd, 2000, Barcelona, Spain
• Publication Date: 2000

Language

• English

Media Info

• Pagination: 729-35 (Book 1)
• Monograph Title: Proceedings of the papers submitted for review: Eurasphalt and Eurobitume Congress

Subject/Index Terms

• TRT Terms: Aggregates; Bituminous pavements; Compaction; Cracking; Creep; Deformation; Laboratory tests; Mix design; Samples; Specifications; Temperature; Test procedures
• ATRI Terms: Aggregate; Asphalt; Compaction; Cracking; Creep; Deformation; Laboratory test; Mix design; Sample; Specifications; Temperature; Test method
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 01392871
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 23 2012 7:39AM