Title: EXAMINATION OF RUTTING AND WEATHERING CHARACTERISTICS OF VARIOUS DANISH ROAD CLASSES
Abstract: A three year project commenced in 1998 to research the functional performance of bituminous wearing courses and road base materials designed and produced by Danish asphalt contractors. The objective of the project was to ensure that bituminous materials tested in the Danish Asphalt Rut Tester can be related to other well known testing methods and to measurements of rutting actually occurring on roads so that a basis can be established for evaluating the rutting and weathering resistance of future bituminous materials. Ten pavements were selected that were due for overlaying and which suffered from rutting generated mainly in the bituminous layers. Cores were taken from these pavements in and between the wheel tracks. On the basis of their rutting and weathering resistance a number of laboratory tests were conducted to determine whether these different bituminous materials could be classified as suitable surfacing materials for three road classes. These laboratory tests included material composition, stripping and dynamic creep test on the samples from the upper 10 to 18 cm of the surfacing in the selected pavements. This paper describes the part of the project in which the observed in situ conditions were compared to the results from the laboratory tests carried out on the samples taken from the ten pavements. This comparison resulted in a classification of the bituminous mixes investigated in terms of their rutting resistance and weathering resistance. For the covering abstract see ITRD E107185.
Publication Year: 2000
Publication Date: 2000-01-01
Language: en
Type: article
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Cited By Count: 2
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