Mix design method and field performance of emulsion cold mixes

Three pavement sections with grave-emulsion were selected and constructed in 2004 and a thorough assessment of the materials properties was carried out, including compactability, accelerated curing, compressive strength, water sensitivity and stiffness modulus. The sections were monitored immediately after construction, then after 1 and 2 years under traffic. Monitoring comprised deflections, core sampling, in-place water content, density and modulus measurements. Moreover, the residual bitumen was characterized at each step. A similar approach was followed for emulsified asphalt concrete used in wearing course in 2005. The accelerated curing procedure used replicated the in-place evolution after 1 to 2 years. Mechanical test procedures were improved as a result of site observations. The following of theûbitumen hardening helped to define the curing phase and its effects, as well as the beginning of aging. The overall return is a better evaluation of both site performance and life expectancy.

• Authors:
  • SERFASS, J -
  • CARBONEAU, X
  • DELFOSS, F
  • TRIQUIGNEAUX, J -
  • VERHEE, F
• Publication Date: 2008

Language

• English

Media Info

• Pagination: 11p
• 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: Aging (Materials); Bitumen; Conferences; Deflection; Density; Durability; Emulsions; Evaluation; Flexible pavements; Mix design; Modulus of elasticity; Moisture content; Pavement design; Wearing course (Pavements)
• ITRD Terms: 5292: Ageing; 4963: Bitumen; 4993: Bitumen emulsion; 8525: Conference; 5586: Deflection; 5908: Density; 5910: Durability; 9020: Evaluation (assessment); 2944: Flexible pavement; 4714: Mix design; 5919: Modulus of elasticity; 5920: Moisture content; 3055: Pavement design; 2980: Wearing course
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01336420
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Apr 15 2011 3:30PM