Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements

Christiane Raab, Manfred Norbert Partl

Abstract


In recent years adhesion testing of pavement layers has gained more and more importance throughout Europe. In a lot of projects the bonding properties are determined after construction and many countries have developed standard requirements which the obtained bonding values have to fulfil.
The paper focuses on the question of long-term behaviour of bonding properties and presents the results of an extensive Swiss study. The study compares the bonding properties determined with the Layer Parallel Direct Shear Test (LPDS) according to Leutner of 14 high volume roads from the years 1993–97 to the values for the same road sections determined 9–13 years later. In addition, a second study conducted on a circular track investigated the differences between the bonding properties in the wheel path and outside the wheel path. It could be shown that in most cases the bond improves due to compaction and settlement caused by the traffic. Problems arise, resulting in a reduction of shear forces, when the pavement shows distress phenomena. The difference between the bonding properties in the wheel path and outside it could be demonstrated in the circular track study, whereas the differences on the road depend on many factors and often seem to be eliminated over the years.


Keywords:

adhesion properties; Layer-Parallel Direct Shear (LPDS) test; interlayers

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References


Bundesamt für Straßen ASTRA; Bundesamt für Statistik BFS [Switzerland Federal Road Administration (FEDRO), Switzerland Federal Office for Statistics (FSO)] 2006. Schweizerische Straßenverkehrszählung 2005 / Comtage Suisse de la circulation routière 2005 [Swiss Traffic Survey 2005]. Bern. 56 p.

Canestrari, F.; Ferrotti, G.; Partl, M. N.; Santagata, F. 2005. Advanced testing and characterization of interlayer shear resistance, Transportation Research Record 1929: 68–78.

Choi, Y.; Collop, A.; Airey, G.; Elliot, R. 2005. A comparison between interface properties measured using the Leutner test and the torque test [CD-ROM], Journal of Association of Asphalt Paving Technologists 74E. ISSN 1553-5576.

Diakhate, M.; Phelipot, A.; Millien, A.; Petit, C. 2006. Shear fatigue behaviour of tack coats in pavements, Road Materials and Pavement Design 7: 201–222.

Kruntcheva, M. R; Collop, A. C.; Thom, N. H. 2006. Properties of asphalt concrete layer interfaces, Journal of Materials in Civil Engineering 18(3): 467–471.

Leutner, R. 1979. Untersuchungen des Schichtenverbunds beim bituminösen Oberbau [Investigation of the adhesion of bituminous pavements], Bitumen 3: 84–91.

Partl, M. N.; Raab, C. 1999. Shear adhesion between top layers of fresh asphalt pavements in Switzerland, in Proc of the 7th Conference on Asphalt Pavements for Southern Africa (CAPSA’99). Victory Falls, Zimbabwe, 29 Aug – 2 Sept, 1999, 5.130–5.137.

Raab, C.; Partl, M. N. 1999. Methoden zur Beurteilung des Schichtenverbunds von Asphaltbelägen [Methods to determine the bond of asphalt pavements]. ASTRA-Project FA 12/94, Report No 442. 118 p.

Raab, C.; Partl, M. N. 2004. Effect of tack coats on interlayer shear bond of pavements, in Proc of the 8th Conference of Asphalt Pavements for Southern Africa (CAPSA’04), Sun City, South Africa, 12–16 Sept, 2004, Document Transformation Technolocies, 847–855. ISBN 1-920-01718-6.

Raab, C.; Partl, M. N. 2007. Langzeiterfassung des Schichtenverbunds – Relation zwischen Prüfwert nach Einbau und Langzeitverhalten [Long-term performance of the adhesion properties – relation between test value after construction and long-term performance]. ASTRA-Project FA 12/94. 56 p. (in print).

Rabaiotti, C.; Caprez, M. 2006. Unterhalt 2000. Dauerhafte Beläge [Maintenance 2000. Durable pavements], ASTRA-Project FA 2000/422. 165 p.

Rabiot, D.; Morizur, M. 1996. Polymer-modified bitumen emulsions an advantage for various road applications, in Proc of the Euroasphalt and Eurobitume Congress, May 7–10 1996, Strasbourg, France.

Stöckert, U. 2001. Schichtenverbund - Prüfung und Bewertungshintergrund [Interlayer bonding - testing and assessment background], Straße + Autobahn [Road and Motorway] 11: 624–631.

Tschegg, E. K.; Macht, J.; Jamek, M.; Steigenberger, J. 2007. Mechanical and fracture-mechanical properties of asphalt-concrete interfaces, ACI Materials Journal 104: 474–480.




DOI: 10.3846/1822-427X.2008.3.65-70

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