EFFECTS OF STRESS ABSORBING MEMBRANE INTERLAYERS

This paper deals with the effect of stress absorbing membrane interlayers (SAMIs) for the reduction of reflection cracking. The results of laboratory tests are presented. The tests performed included the following: (a) Marshall tests on the top and bottom layer as well as mix composition determination; (b) static indirect tensile tests on the top and bottom layer mixes; (c) shear tests on the top and bottom layer mix as well as on the SAMI and the interlayers with and without a tack coat; (d) three point bending tests on two layered beams incorporating a SAMI and beams with and without a tack coat between the top and bottom layer; and (e) fatigue tests on two layered beams as mentioned under d. Based on the results of the research, the following conclusions were drawn: (a) Application of a SAMI prevents reflection of cracks through an overlay; (b) Application of a SAMI will cause the overlay to behave independently from the underlying structure; (c) Given the fact that the overlay will act independently from the underlying structure, thin overlays are favored over thick overlays; and (d) Application of a SAMI seems to be especially appropriate on pavements with a cracked top layer but with a sufficient bearing capacity of base and subgrade.

• Corporate Authors:

  Association of Asphalt Paving Technologists (AAPT)

  400 Selby Avenue, Suite I
  St Paul, MN  United States  55102
• Authors:
  • Molenaar, A A A
  • HEERKENS, JCP
  • Verhoeven, JHM
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1986

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 453-481
• Serial:
  • Volume: 55

Subject/Index Terms

• TRT Terms: Bend tests; Energy absorbing materials; Fatigue tests; Laboratory tests; Marshall test; Overlays (Pavements); Prevention; Reflection cracking; Shear tests; Stresses; Tension tests; Thickness
• Uncontrolled Terms: Bending tests; Indirect tensile test; Stress absorbing membrane interlayers
• Old TRIS Terms: Test results
• Subject Areas: Design; Highways; Materials; Pavements; Security and Emergencies; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00739654
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 6 1997 12:00AM