Brief explanation of the Compactasphalt method
The above animation shows how the actual Compactasphalt® laying process is executed.
Please click appropriate link to download standalone version of the animation above English version or German version.
The method was developed in cooperation with the company Hermann Kirchner GmbH & Co. in Bad Hersfeld and Prof. Dr.-Ing. Elk Richter from the University of Applied Sciences in Erfurt, to reliably achieve paving a thin wearing course with high compaction.
“Compactasphalt is, according to the German fact sheet MKA[1], asphalt where
- the upper and lower courses are laid successively with high pre-compaction of the lower course – without any heavy vehicles passing over the lower course and
- compaction of both asphalt layers is carried out by rollers in a single operation”.
The wearing course is reduced to 1.5 - 2.5 cm of thickness - to ensure the maximum stability of the mix - depending on the largest grain in the mix. Dimensioning of the overall thickness corresponds to the regulations of the RStO-01[2] (Official German guidelines for the standardisation of traffic surfaces).
The following illustration compares asphalt paving using conventional road construction methods and the Compactasphalt® method.
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[1] Merkblatt für den Bau Kompakter Asphaltbefestigungen - MKA. Forschungsgesellschaft für Straßen und Verkehrswesen e.V., FGSV, August 2001 [2] Richtlinien für die Standardisierung des Oberbaus von Verkehrsflächen (RStO-01), Ausgabe 2001. FGSV Verlag Köln, 2001, FGSV 499 |