Performance of ‘SAMI’S in Simulative Testing

  • O. M. Ogundipe
  • N. H. Thom
  • Andrew C. Collop
  • J. Richardson
Part of the RILEM Bookseries book series (RILEM, volume 4)

Abstract

Although the use of Stress Absorbing Membrane Interlayers (SAMIs) to control reflective cracking has been proven to be effective under certain circumstances, the mechanisms involved are not agreed and design is therefore difficult for engineers to implement with confidence. This paper describes simulative laboratory tests utilizing two different SAMI systems, part of a broader project designed to throw light on the subject. The simulation was conducted to investigate the effectiveness of SAMIs under trafficking. Trafficking was carried out in the Nottingham Pavement Test Facility on a pavement consisting of a thin overlay to a cracked asphalt substrate, and this demonstrated a measurable benefit from the two SAMI systems trialed. Data analysis was then carried out and deductions made regarding those properties of SAMIs that appeared to contribute most to reflective crack resistance.

Keywords

Asphalt Concrete California Bearing Ratio Bituminous Mixture Bitumen Emulsion National Cooperative Highway Research Program 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© RILEM 2012 2012

Authors and Affiliations

  • O. M. Ogundipe
    • 1
  • N. H. Thom
    • 1
  • Andrew C. Collop
    • 2
  • J. Richardson
    • 3
  1. 1.University of NottinghamNottinghamUK
  2. 2.De Montfort UniversityLeicesterUK
  3. 3.ColasRedhillUK

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