Effects of accelerating and decelerating tramway loads on bituminous pavement

Hammoum, Ferhat; Chabot, Armelle; St-Laurent, Denis; Chollet, Hugues; Vulturescu, Bogdan

doi:10.1617/s11527-009-9577-9

Cited by 26 publications

(11 citation statements)

References 7 publications

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“…In subsequent calculations, it is assumed that the power of horizontal forces (τ ) can be neglected so that only p needs to be considered in the definition of contact forces. This assumption is consistent with measures performed in a study by Hammoum et al (2010) that indicates that the magnitude of tangential forces for a vehicle driving at a steady speed are negligible compared to vertical forces. Nevertheless, this assumption will be verified a posteriori in section 3.3.…”

Section: Rr F Formulassupporting

confidence: 90%

Evaluation of the structure-induced rolling resistance (SRR) for pavements including viscoelastic material layers

Chupin¹,

Piau²,

Chabot³

2012

Mater Struct

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This article addresses the question of whether the viscoelastic behavior of asphalt pavements, as part of the factors that impact the rolling resistance, might lead to substantially higher energy consumption of road traffic, as compared to non-dissipative pavements. In the context of sustainable development (fuel consumption, gas emission), this is a current issue for the pavement design community. This problem is tackled by a theoretical approach which consists in computing the Structure-induced Rolling Resistance (SRR) for a vehicle by using the mechanical response of a layered viscoelastic medium excited by moving loads (i.e. tires of the vehicle). The structure-induced power dissipation is shown to be proportional to the integral over contours of the applied loads of the pavement deflection, times the outward normal to these contours. Following the developed approach, the determination of the SRR force engendered by the structure-induced dissipation is obtained from the computation of the deflection of the viscoelastic pavement to an assumed pressure distribution. Such an approach applied to a thick asphalt pavement allows the SRR for a typical road structure to be evaluated as a function of temperature and speed. A non-dimensional analysis is also presented to extend the results to some other contexts. Under the assumptions made for the derivation of the SRR, the main conclusion of the case study is that the extra fuel consumption for a vehicle resulting from the viscoelastic behavior of asphalt pavements is small.

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Section: Rr F Formulassupporting

confidence: 90%

Evaluation of the structure-induced rolling resistance (SRR) for pavements including viscoelastic material layers

Chupin¹,

Piau²,

Chabot³

2012

Mater Struct

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“…ViscoRoute© 2.0 (Chabot et al 2010;Chupin et al 2010;Hammoum et al 2010) is a software dedicated to the computation of the dynamic response of multilayer pavements subjected to loads moving at constant speed (quasi-stationary assumption). The material layers can be modeled as linear elastic (non-bituminous layers) or viscoelastic according to the Huet (Huet et al 1963;Huet 1999) or Huet-Sayegh (Sayegh 1965) models which are well adapted to represent the thermo-sensitive behavior of asphalt concrete.…”

Section: Overview Of Viscoroute© 20mentioning

confidence: 99%

Optimization of Truck Platoon Wander Patterns Based on Thermo-Viscoelastic Simulations to Mitigate the Damage Effects on Road Structures

Marsac

Blanc

Chupin

et al. 2020

Lecture Notes in Civil Engineering

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The concept of truck platooning is to take advantage of the connectivity technologies and automated driving support systems to link trucks in close formation (convoy) in order to increase transport efficiency, reduce fuel consumption and gas emissions while improving road safety. However, closely guided trucks following each other could have a different impact on road structures than the usual truck traffic. Notably, different studies with traffic simulators highlight the significant effect of the wander pattern of traffic on the damage observed on test road structures. On the other hand, the positioning systems could offer the opportunity to choose an optimized wander pattern of the trucks within the platoons, especially designed to mitigate the overall damage. In this context, the study reported in this paper addresses, through numerical simulations, the multi-loading effects of truck platoons on road structures for different configurations of wander patterns. The aggressiveness of these patterns is evaluated on the basis of the viscoelastic response of the pavement structures (strain field) computed using software ViscoRoute© 2.0. Finally, recommendations on the choice of wander pattern configurations to be tested on APT facilities are proposed.

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“…The phenomenon of rutting occurs at intersections, bus stops on urban roads due to the horizontal loading caused by friction between the pavement and tire through applying vehicle braking, and accelerating actions that also create large shear stress and strain in pavement layers. Rutting also may occur in a long and steep section of highways, based on the principle of time-temperature superposition [35,36,37,38]. Rutting behavior is dependent on environmental factors and traffic intensity [39], for instance, repeated heavy vehicle loading and slow traffic at high temperature [40].…”

Section: Pavement Distressesmentioning

confidence: 99%

Evaluation of the Properties of Asphalt Mixes Modified with Diatomite and Lignin Fiber: A Review

et al. 2019

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Due to rapid growth of traffic density, the phenomenon of overloading on high-grade highways causes various modes of distresses to the pavement such as rutting, thermal cracking, and water damage. Modification of asphalt mixes is the most common solution to improve the performance of asphalt pavement to mitigate its damages. This paper provides a review on the influence of diatomite or lignin fiber as a modifier in asphalt mixes. In order to assess the effectiveness of selected additives on asphalt mix performance, several tests, such as wheel tracking, indirect tensile, three points bending, freeze thaw splitting, and marshall immersion, were reviewed. The review indicated that the addition of diatomite increases the high temperature rutting resistance of asphalt mixes, but some researchers observed that it has a little improvement on the low temperature performance of asphalt mixes and the optimum amount of diatomite at 12–14% of asphalt binder can be added into the mix. In contrast, lignin fiber has a significant effect on the low temperature cracking resistance of asphalt mixes; however, its influence on the high temperature rutting resistance of asphalt mix is limited, and the optimum amount of lignin fiber is 0.2–0.4% per asphalt mix composition. The review also indicated that the single additives haven’t the ability to enhance the overall performance of asphalt mix. Consequently, the utilization of double additives can improve the overall performance of asphalt mixes at the same time, but it is still in an early stage in the application of highway engineering due to all previous researches concentrated on the single modification. Moreover, this review suggests that the future use of diatomite and lignin fiber compound modified asphalt mix can improve the overall mix performance.

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Effects of accelerating and decelerating tramway loads on bituminous pavement

Cited by 26 publications

References 7 publications

Evaluation of the structure-induced rolling resistance (SRR) for pavements including viscoelastic material layers

Evaluation of the structure-induced rolling resistance (SRR) for pavements including viscoelastic material layers

Optimization of Truck Platoon Wander Patterns Based on Thermo-Viscoelastic Simulations to Mitigate the Damage Effects on Road Structures

Evaluation of the Properties of Asphalt Mixes Modified with Diatomite and Lignin Fiber: A Review

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