scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Analysis of the Long-Term Structural Performance of Flexible Pavements Using Full-Scale Accelerated Pavement Tests

01 Jan 2012-Procedia - Social and Behavioral Sciences (Elsevier)-Vol. 48, pp 1244-1253
TL;DR: In this paper, an accelerated pavement testing project carried out at the test facility of the Federal Highway Research Institute of Germany (FHRI) is presented, where two full-scale flexible road pavements were subjected to continued loading while capturing the structural condition.
About: This article is published in Procedia - Social and Behavioral Sciences.The article was published on 2012-01-01 and is currently open access. It has received 3 citations till now. The article focuses on the topics: Pavement engineering & Base course.
Citations
More filters
Journal ArticleDOI
TL;DR: In this paper, the simulation of wheel tracking test and the high-temperature rutting behavior of an asphalt mixture by using the discrete element method (DEM) was investigated.
Abstract: This study investigated the simulation of wheel tracking test and the high-temperature rutting behaviour of an asphalt mixture by using the discrete element method (DEM). Based on the DEM software named as Particle Flow Code in three dimensions (PFC3D), a micromechanical model of an asphalt mixture composed of coarse aggregates, asphalt mastic, and air voids was built and a two-dimensional virtual wheel tracking test was simulated. Based on the virtual wheel tracking test, the distribution of displacement and contact forces within test specimen were analysed. It is proved that the built virtual wheel tracking test can capture the rutting deformation caused by the combination of densification and lateral flow deformation. It is also indicated that, within an asphalt mixture, the aggregate skeleton is the main bearing body for the compressive forces, while the compressive and tensile forces between aggregate and mastic are severer than that within asphalt mastic. It is important to guarantee the stability o...

105 citations

Journal ArticleDOI
TL;DR: In this paper, the authors defined the resistance to rutting of various kinds of pavement structures and assessed the variation of rut depth in dependence on the traffic loading (number of equivalent standard axel loads).

21 citations

References
More filters
Journal Article
TL;DR: In this paper, the authors present an original contribution to the prediction of moduli and fatigue laws in sinusoidal bending (controlled stress tests) of bituminous mixes, using a large variety of mixes having different bitumen, composition, and size distribution of the aggregates.
Abstract: The use of modern pavement design methods to prevent cracking necessitates, among other things, determining the moduli and fatigue laws in bending of the bituminous road mixes (base courses and wearing courses). These determinations are now possible, but they involve sophisticated experiments that are not well adapted to pratical purposes. The objective of this paper is to present an original contribution to the prediction of moduli and fatigue laws in sinusoidal bending (controlled stress tests) of bituminous mixes. The results obtained with a large variety of mixes having different bitumen, composition, and size distribution of the aggregates show that this prediction requires only the knowledge of the volumetric composition of the mix (aggregate volume content, bitumen volume content, and void content) and the knowledge of some characteristics of the bitumen used (asphaltene content and penetration). On the basis of the experimental results obtained, general formulas are presented to permit the prediction of the moduli and the fatigue law of a mix. Practical criteria for the selection of the bitumen are also proposed.

16 citations

01 Jan 2003
TL;DR: The 2. Auflage des Kommentars zur ZTV Asphalt-StB 01 erschienen as discussed by the authors traegt zum besseren Verstaendnis der 2001 erneut geaenderten technischen Vertragsbedingungen fuer den Asphaltstrassenbau bei and ermoeglicht dem Praktiker die reibungslose and sichere Arbeit.
Abstract: Veraenderte Regelwerke bedeuten veraenderte Arbeitsbedingungen fuer den Strassenbauer. Um den Umgang mit diesen Regeln zu erleichtern, ist die 2. Auflage des Kommentars zur ZTV Asphalt-StB 01 erschienen. Der Kommentar traegt zum besseren Verstaendnis der 2001 erneut geaenderten technischen Vertragsbedingungen fuer den Asphaltstrassenbau bei und ermoeglicht dem Praktiker die reibungslose und sichere Arbeit. Neu ist zum Beispiel der Abschnitt zur Griffigkeit von Fahrbahndecken, fuer die zum ersten Mal konkrete Grenzwerte festgelegt wurden. Die Erlaeuterung stellt zudem nicht nur die praktische Anwendung der ZTV Asphalt-StB 01 dar, sie zeigt auch die vielseitigen Beziehungen zu anderen Regelwerken, von denen ueber 30 seit der Vorauflage veraendert wurden, zum Beispiel Wiederverwendung von Ausbauasphalt.

3 citations