Modified hard binder to improve low temperature behaviour

C-Fix is a very hard thermoplastic binder for the construction industry that, mixed with aggregates, sand and filler materials, combines the qualities and advantages of asphalt (flexibility) with cement concrete (strength). Research on the improvement of the low-temperature behaviour of the binder with a special modifier is reported. At lower temperatures it becomes very stiff and this can be a disadvantage in certain applications so possible modification of the binder was investigated. First the compatibility of the modifier with the binder was investigated and also the amount to be added. The microscopic analysis of the result of mixing the binder with modifier is shown. A positive point of modifying the binder was that the mixing temperature can be reduced. On the chosen modified binder, rheological tests with the dynamic shear rheometer (DSR) were performed. From the master curves of the stiffness and the phase angle significant improvements with respect to low temperature behaviour were detected. The influence of the filler on the rheological properties was investigated with DSR and dynamic mechanical analysis on two modified binder/filler systems. The influence of the filler type proved to be significant. For the covering abstract see ITRD E157233

• Authors:
  • ARCE, F
  • VAN EMST, G
  • VAN DE VEN, M F
• Publication Date: 2008

Language

• English

Media Info

• Pagination: 12p
• 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: Admixtures; Binders; Bituminous mixtures; Conferences; Mix design; Polymers; Properties of materials; Rheology; Stiffness; Temperature
• Uncontrolled Terms: Modifications
• ITRD Terms: 4736: Admixture; 4948: Binder; 4967: Bituminous mixture; 8525: Conference; 4714: Mix design; 9048: Modification; 7482: Polymer; 5925: Properties; 5442: Rheology; 5931: Stiffness; 6722: Temperature
• Subject Areas: Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01323284
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Dec 22 2010 8:45AM