SIMPLE BUT EFFECTIVE

This article examines a test for polymer modified bitumens using Sliding Plate Rheometer to determine the stiffness modulus over a range of temperatures. This is a method which has proved itself simple and effective and which yields repeatable results. The apparatus and sample preparation are described together with the methods of measuring stiffness modulus and elastic recovery. A n of tests for elastic recovery in the temperature range 30C to -10 were carried out. Whilst these showed an excellent demonstration the effect of polymer on the properties of bitumen, the repeatabi was too low to be suitable for quality control. Stiffness modulu tests were focused on the 20C to -10C temperature range. A table results is given for the stiffness modulus at 1,000sec. A stiffn ratio is calculated by dividing the 1,000sec stiffness modulus at lower temperature by the stiffness modulus at the higher temperat A short discussion compares results for penetration grade and SBS modified bitumens. The initial results are considered to be encouraging as an indication of performance since the method is l operator sensitive and control of test conditions is better when compared with other cold temperature tests.

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

  FAVERSHAM HOUSE GROUP LTD

  FAVERSHAM HOUSE, 111 ST JAMES'S ROAD
  CROYDON, SURREY  United Kingdom  CR9 2TH
• Authors:
  • TOSH, D J
  • TAYLOR, M B
  • ROBINSON, H L
• Publication Date: 1992-5

Language

• English

Media Info

• Features: References;
• Pagination: p. 26-8
• Serial:
  • Highways
  • Volume: 60
  • Issue Number: 5
  • Publisher: Alad Limited
  • ISSN: 0142-6168
  • Serial URL: http://www.highways-mag.co.uk

Subject/Index Terms

• TRT Terms: Bituminous materials; Elasticity (Mechanics); Measuring instruments; Polymerization; Rheology; Stiffness; Temperature; Tests
• Subject Areas: Materials;

Filing Info

• Accession Number: 00628449
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: , ATRI
• Created Date: May 7 1999 12:00AM