InLine Pave® Stands the Quality Test
Results of the official tests conducted on “hot on hot” paving using two pavers.
InLine Pave® trains meanwhile built more than 1.5 million m² of compact asphalt pavements. But do the paving results stand the official tests? RoadNews furnishes proof of the “hot on hot” paving method’s high efficiency based on the example of three paving jobs and publishes the test results.
InLine Pave® has now been on the market for three years roughly. During this period of time, about a dozen contractors gathered experience with the “hot on hot” paving method using two pavers. Most varied roadworks have been carried out, from rehabilitation of damaged roads in single-lane or dual-lane width all the way to the building of new roads. A question frequently asked by road construction experts is, whether the paver for surface course causes damage to the binder layer when travelling on it. And whether travelling on it impairs the quality of the pavement as a whole. We answer those questions in this report.
No adverse effects of the paver for surface course on the paving result
All test reports established by various materials testing laboratories come to the conclusion that, provided the right binder course mix and proper placing, the paver for surface course leaves no more than negligible imprints in the area of its crawler tracks. There is no adverse effect upon the material properties of the binder course, not even in the places under the tracks. This applies to both the degree of density and the voids content. And the outcome of quality testing proves that this is not a mere assertion: all road pavements built with InLine Pave® were accepted by the authorities without objection.
Comment on test results
The “Information for the Construction of Compact Asphalt Pavements” (Merkblatt für den Bau Kompakter Asphaltbefestigungen MKA) stipulates: The degree of density must not be below 99% for asphalt binder course and asphalt surface course.
This requirement applies to Germany according to the recommendations issued by the “Roads and Traffic Research Association” (Forschungsgesellschaft für Straßen- und Verkehrswesen FGSV).