Encouraging durability in the specification, manufacture and laying of asphalt pavements

There are many criteria against which pavements are designed and specified, including strength, deformation resistance, surface regularity and surface properties. In order to specify these criteria, the various requirements need to be translated into measurable properties of the component materials, the asphalt and/or the pavement that reflect the ability of the finished pavement to perform satisfactorily. However, the intention is for the pavement not only to perform initially after construction, but for a considerable time thereafter despite the ravages of time with exposure to the environment and the traffic. Sustainability has become a major issue in many areas, and the best way to improve sustainability is to enhance durability. Therefore, a series of practitioner workshops were held to identify factors that could facilitate greater durability at the various stages of design, specification and construction. The main areas where durability can be enhanced include mixture design (high binder content, low air voids content and appropriate maximum aggregate size), pavement design (minimum number of joints, impermeability, liaison with drainage design), construction (good compaction, well compacted joints, good bond between layers, sealed joints and continuity of supply) together with more general points (allowance for season, no premature trafficking and early contractor involvement). For the covering abstract see ITRD E157233

• Authors:
  • NICHOLLS, J C
  • MCHALE, M J
  • GRIFFITHS, R C
  • LOVEDAY, C A
  • WILLIAMS, D J
  • SOUTHWELL, C D
  • JAMES, D
• Publication Date: 2008

Language

• English

Media Info

• Pagination: 7p
• Serial:
  • PROCEEDINGS OF THE 4TH EURASPHALT AND EUROBITUME CONGRESS HELD MAY 2008, COPENHAGEN, DENMARK
  • Publisher: EUROPEAN ASPHALT PAVEMENT ASSOCIATION (EAPA)

Subject/Index Terms

• TRT Terms: Aggregates; Binders; Compaction; Conferences; Construction; Drainage; Durability; Mix design; Pavement design; Permeability; Porosity; Size; Specifications; Sustainable development
• ITRD Terms: 4577: Aggregate; 4948: Binder; 3686: Compaction; 8525: Conference; 3655: Construction; 9014: Dimension; 2937: Drainage; 5910: Durability; 4714: Mix design; 3055: Pavement design; 5921: Permeability; 5938: Porosity; 177: Specifications; 2427: Sustainability
• Subject Areas: Construction; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials; I52: Construction of Pavements and Surfacings; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01174484
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Sep 30 2010 11:13AM