FLOW TEST

This article introduces the science of rheology from the viewpoint of practising engineers, and discusses its application to bituminous binders. In connection with these binders, 'rheology' has a rather wide definition, and includes the binder's properties and its states, ranging from an elastic solid to a freely flowing liquid. The article discusses the range of properties of bitumen and modified bitumen, how they compare with other materials more familiar to engineers, and what practical uses can be made of knowledge of a material's rheological behaviour. Viscosity is not considered here, as it has been discussed extensively in the literature. Binder behaviour is not simple to understand, because binders are visco-elastic materials under most loading conditions, at most temperatures. A bitumen's stiffness modulus depends on the exact temperature and loading time (or frequency) of a test. Master curves for it can be produced using a computer-controlled dynamic shear rheometer (DSR). The application of rheology include: specification of binders, failure investigation, performance prediction, compliance testing, product identification, and quality assurance. The article gives details of the quality assurance of binders, using the DSR test, and the assessment of deformation resistance. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3831968
• Corporate Authors:

  Alad Limited

  P.O. Box 135
  Sutton, Surrey  United Kingdom  SM2 7JP
• Authors:
  • ARMITAGE, R
• Publication Date: 1997-5

Language

• English

Media Info

• Features: References;
• Pagination: p. 30-1
• Serial:
  • Highways
  • Volume: 65
  • Issue Number: 4
  • Publisher: Alad Limited
  • ISSN: 0142-6168
  • Serial URL: http://www.highways-mag.co.uk

Subject/Index Terms

• TRT Terms: Behavior; Binders; Bitumen; Bituminous materials; Elasticity (Mechanics); Liquids; Loads; Rheology; Stiffness; Temperature; Viscosity
• ITRD Terms: 9001: Behaviour; 4948: Binder; 4963: Bitumen; 4955: Bituminous materials; 5912: Elasticity; 6733: Liquid; 5567: Load; 5442: Rheology; 5931: Stiffness; 6722: Temperature; 5936: Viscosity
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00740946
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Oct 30 1997 12:00AM