DECREASING THE PLASTIC DEFORMATION OF MASTIC ASPHALT

VALUASFALTTIEN PLASTISEN DEFORMAATION VAHENTAMINEN

Alternative means of decreasing the deformation of mastic asphalt with the aid of proportioning and binder have been studied. The binder used was harder than normal bitumen and also modified bitumens. The investigation was made as test track drive on Neste Oy's vertical track using temperatures of 20, 30, 40 and 45 deg C. The results show that the deformation sensitivity of mastic asphalt can most effectively be decreased by using as binder a bitumen modified with synthetic rubber. Other means considered are decrease of binder content and use of harder bitumen. The rheological properties of the binder acting in mastic asphalt pavement explain the deformation of the pavement. (TRRL)

• Corporate Authors:

  Neste Oy Tutkimuskeskus

  Kulloo,   Finland 
• Authors:
  • FORSTEN, L
  • NYBERG, C
• Publication Date: 1984

Language

• Finnish

Media Info

• Features: Figures; References;
• Pagination: 54 p.

Subject/Index Terms

• TRT Terms: Binder content; Binders; Deformation; Mastic asphalt; Mix design; Plastic deformation; Reduction (Chemistry); Rheology; Rubber; Rubberized bitumen; Sensitivity; Synthetic rubber
• Uncontrolled Terms: Decreases
• Old TRIS Terms: Reduction
• ITRD Terms: 4948: Binder; 9009: Decrease; 5595: Deformation; 4714: Mix design; 5442: Rheology; 7494: Rubber; 5928: Sensitivity
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00395041
• Record Type: Publication
• Source Agency: VTT Technical Research Centre of Finland
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS
• Created Date: Oct 31 1985 12:00AM