LOT, a meso scale mechanistic tool for Porous Asphalt mixture design; winter damage and LOT validation

Conference paper (2010)
Department
Geoscience & Engineering (CEG) (TU Delft)
Copyright: © 2010 Huurman, M.; Mo, L.T.; Woldekidan, M.F.
Porous Asphalt concrete Meso scale Mechanistic mix design
More Info
expand_more

Published Date

04-08-2010

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Source:

The 11th ISAP international conference on asphalt pavements (ICAP 2010), Nagoya, Japan, Aug 1-6, 2010.

ISBN:

9784889507133

Faculty

Civil Engineering and Geosciences

Department

Geoscience & Engineering

Abstract

By assignment of the Centre for Transport and Navigation (DVS) of the Dutch Ministry of Transport, Public Works and Water Management the Delft University of Technology developed LOT. LOT is a Lifetime Optimisation Tool for Porous Asphalt, PA, based on meso scale structural modelling. LOT sees an asphalt mixture as a structure and computes stress and strain throughout that structure as a function of mixture component behaviour, mixture geometry, and mixture loading. This paper discusses the validation of LOT on the basis of full scale ravelling test. Further validation is achieved by analysis of winter damage which developed in PA during the Dutch 2008/2009 winter. For this analysis LOT simulations considering Long Term Aged (LTA) PA at temperatures of -10° to +20°C were made. The paper comes to the conclusion that meso scale mechanical models allow ravelling performance based mechanistic design of high performance PA mixtures.

Files

90253.pdf
(pdf | 1.45 Mb)