Advertisement

Shear Bonding Performance of Reinforced Asphalt Pavements by Using Polyester Grids

  • Fabiana Leite-GembusEmail author
  • Andreas Elsing
Conference paper
  • 63 Downloads
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 76)

Abstract

The conventional method for rehabilitation of cracked asphalt pavements is the installation of new asphalt layers. This resurfacing is often not an effective solution, as the existing cracks in the old asphalt layers can propagate rapidly to the top of the new overlay. In order to delay the development of reflective cracking, asphalt reinforcement grids have been used all over the world for many years, showing outstanding results. The grid changes the response of the pavement to loading, increasing the resistance of the asphalt overlay to high tensile stresses and distributing them over a larger area. Thereby the peak shear stresses are reduced at the edges of the existing cracks and thus the crack propagation can be retarded. Nevertheless, the performance of reinforced pavements depends strongly on the adhesion between the interlayer and the asphalt courses. The purpose of this paper is to report shear bonding performance verified in laboratory and in the practice by using a high modulus polyester grid as asphalt reinforcement. Shear bonding tests according to Leutner method have been carried out for different core samples, produced in laboratory as well extracted from test sections or from pavements in operation. The results show that a high bond strength between the asphalt layers can be reached when using an asphalt reinforcement grid, inclusive considering the long-term performance. In this way, the condition of repaired roads can be maintained at high levels over extended periods of time.

Keywords

Reinforced asphalt pavement Polyester grid Shear bond strength Pavement rehabilitation 

References

  1. Asphalt Academy (2008) Technical guideline: asphalt reinforcement for road construction. TG 3, First Edition, South AfricaGoogle Scholar
  2. De Bondt AH (1999) Anti-reflective cracking design of (reinforced) asphaltic overlays. PhD-thesis, Delft, NetherlandsGoogle Scholar
  3. Elseifi M (2015) Presentation 2: mitigation strategies for reflective cracking in pavements. TRB Webinar – Mechanisms and Mitigation Strategies for Reflective Cracking in Rehabilitated Pavements, 24 August 2015Google Scholar
  4. Elsing A, Schröer S (2005) Experience from more than 30 years of asphalt reinforcement with polyester grids. In: 15th international road federation world meeting, Bangkok, ThailandGoogle Scholar
  5. FGSV 770 (2013) Arbeitspapier für die Anwendung von Vliesstoffen, Gittern und Verbundstoffen im Asphaltstrassenbau (in german). Forschungsgesellschaft für Straßen- und Verkehrswesen, Köln, GermanyGoogle Scholar
  6. Hessing C, Thesseling B (2013) Polyester asphalt reinforcement grids – the answer to reflective cracking and the basis for sustainable road maintenance. In: Proceedings of the XXVIII international baltic road conference, Vilnius, LithuaniaGoogle Scholar
  7. Koerner RM (2012) Designing with geosynthetics. Xlibris CorporationGoogle Scholar
  8. Monser CA, Montestruque GE, Silva AEF (2010) Evaluation of an airport pavement after almost 8 years of overlay rehabilitation with a polyester geogrid asphalt reinforcement. In: Proceedings of the 9th international conference on geosynthetics, BrazilGoogle Scholar
  9. Montestruque GE, Rodrigues RM, Nods M, Elsing A (2004) Stop of reflective crack propagation with the use of PET geogrid as asphalt overlay reinforcement. In: Fifth international RILEM conference on cracking in pavements: mitigation, risk assessment and prevention, Limoges, FranceGoogle Scholar
  10. Nejad FM, Asadi S, Fallah S, Vadood M (2016) Statistical-experimental study of geosynthetics performance on reflection cracking phenomenon. Geotext Geomembr 44:178–187CrossRefGoogle Scholar
  11. Norambuena-Contreras J, Gonzalez-Torre I (2015) Influence of geosynthetic type on retarding cracking in asphalt pavements. Constr Build Mater 78:421–429CrossRefGoogle Scholar
  12. Quiel M (2013) Einsatz von asphalteinlagen im asphaltstrassenbau. Master thesis, Münster University of Applied Sciences, Münster, GermanyGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Huesker Synthetic GmbHGescherGermany

Personalised recommendations