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Title
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The influence of mixture composition, adhesion promotor and compaction degree on the groove stability of grooved Marshall asphalt
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Author
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Abstract
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| After the first rehabilitation of runway 07R/25L in 2015, runway 01/19 was reconstructed in the summer of 2016, as part of a cycle where all runway pavements at Brussels airport are completely renovated each thirty years. The top layer is a Marshall asphalt with a polymer modified bitumen. To optimize the water drainage the central part of the runway (47 m wide) is grooved instead of applying an anti-skid layer. In this paper the focus is on the durability of the grooved top layer. Two different Marshall asphalt mixtures with a different maximum granulate size (10 mm or 14 mm) are compared, both in the laboratory and in a full-scale trial. In the laboratory the resistance against rutting and raveling are investigated for both mixtures with and without adhesion promotor, which did not show a positive effect. In the full-scale trial the compactability and impact of both a longer curing period and a variation in the degree of compaction on the groove stability is investigated for both mixtures using a heavy truck. No visual differences could be found except in areas which were undercompacted and showed more damage to the grooves. |
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Language
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English
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Source (journal)
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IOP conference series : materials science and engineering. - Bristol, 2009, currens
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(BESTINFRA2017)
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Source (book)
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International Conference on Building up Efficient and Sustainable, Transport Infrastructure (BESTInfra), SEP 21-22, 2017, Prague, CZECH REPUBLIC
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Publication
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Bristol
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Iop publishing ltd
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2017
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ISSN
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1757-8981
[print]
1757-899X
[online]
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DOI
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10.1088/1757-899X/236/1/012006
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Volume/pages
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236
(2017)
, 8 p.
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Article Reference
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UNSP 012006
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ISI
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000417428700006
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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