Effect of saturated ageing on fatigue behavior of asphalt pavements

2014 ◽  
pp. 577-584
Keyword(s):  
Fatigue Behavior ◽  
Asphalt Pavements

scholarly journals An Experimental Investigation on the Repairing Performance and Fatigue Life of Asphalt Pavement Potholes With an Inclined Interface Joint

2021 ◽  
Vol 7 ◽  
Author(s):  
Linyu Li ◽  
Yangquan Huang ◽  
Zhutao Shao ◽  
Dongya Ren
Keyword(s):  
Fatigue Life ◽  
Prediction Model ◽  
Structural Damage ◽  
Experimental Testing ◽  
Asphalt Pavement ◽  
Fatigue Behavior ◽  
Asphalt Pavements ◽  
Joint Interface ◽  
Tack Coat ◽  
Joint Shape

A pothole is a typical structural damage of asphalt pavements that significantly influence the life of asphalt pavements and driving safety. The durability of the existing pit repair methods is generally low. The existing studies in the context of pothole repair mainly focus on the selection and the amount of tack coat materials, nonetheless, very limited studies emphasize the effect of the joint interface shape. This study aims to investigate the influence of the interface joint shape on the service life of pothole repair by experimental testing. The strength and fatigue behavior of the joints were studied and the effectiveness of pothole repairs was evaluated under various conditions, including four temperature levels (5, 10, 15 and 25°C), four strain levels (750 με, 1,000 με, 1,250 με, and 1,500 με) and three loading frequencies (2, 5, and 10 Hz). The optimal interface joint shape was obtained by orthogonal tests. The results indicated that the bond strength and fatigue life of the high viscoelastic emulsified asphalt with an area density of 0.6 kg/m2 in the form of a 30° inclination joint was 473 and 80 times higher than those of traditional pothole repair (i.e., vertical joint form and no tack coat), respectively. Finally, a prediction model was proposed for the interface joint fatigue life considering external parameters through multiple regression analyses. This prediction model can provide a reference for the further study of asphalt pavement pothole repair.

scholarly journals Laboratory and Statistical Analysis of the Fatigue Response of Self-Healing Asphalt Mixtures Containing Metal By-Products

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 385
Author(s):  
Marta Vila-Cortavitarte ◽  
Daniel Jato-Espino ◽  
Daniel Castro-Fresno ◽  
Miguel Á. Calzada-Pérez
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Fatigue Behavior ◽  
Asphalt Mixtures ◽  
Environmental Benefits ◽  
Asphalt Pavements ◽  
Similar Response ◽  
Self Healing ◽  
By Products ◽  
Industrial Sand

Fatigue is one of the main forms of deterioration in asphalt mixtures, endangering their service life due to the progressive appearance and expansion of cracks. A sustainable approach to increase the lifetime of asphalt pavement has been found in self-healing technology, especially if boosted with metal by-products due to their economic and environmental interest. Under these circumstances, this research addressed the fatigue behavior of self-healing asphalt mixtures including industrial sand blasting by-products obtained from sieving and aspiration processes. Hence, a uniaxial fatigue test was carried out to determine whether these experimental mixtures can provide a similar response to that of a reference asphalt concrete (AC-16). This analysis was undertaken with the support of descriptive and inferential statistics, whose application proved the absence of significant differences in the fatigue performance of self-healing experimental mixtures with respect to conventional asphalt concrete. These results suggest that designing self-healing mixtures with metal by-products is a sustainable approach to increase the lifetime of asphalt pavements, while contributing to the circular economy through diverse economic and environmental benefits.

scholarly journals EVALUATING FATIGUE BEHAVIOR OF ASPHALT BINDERS AND MIXES CONTAINING DATE SEED ASH

2017 ◽  
Vol 23 (8) ◽  
pp. 1164-1175 ◽  
Author(s):  
Ali FOROUTAN MIRHOSSEINI ◽  
Amir KAVUSSI ◽  
Mohammad Hossain JALAL KAMALI ◽  
Mohammad Mehdi KHABIRI ◽  
Abolfazl HASSANI
Keyword(s):  
Fatigue Testing ◽  
Fatigue Behavior ◽  
Critical Role ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Asphalt Pavements ◽  
Asphalt Mixes ◽  
Date Seed ◽  
Tensile Fatigue ◽  
Indirect Tensile

Fatigue is one of the most occurring distresses in asphalt pavements. Asphalt binder plays a critical role in fa­tigue behavior of asphalt mixes. Modelling and predicting fatigue behavior of binders will result in more fatigue resistant mixes. In this research, possibility of using Date Seed Ash alongside two commonly used additives (namely, a siliceous and a limestone) as bitumen modifier were investigated. Then, the influence of these additives on fatigue behavior of asphalt binders and mixes was investigated. Linear Amplitude Sweep (LAS) test was carried out and Viscoelastic Con­tinuum Damage (VECD) parameter was determined. In addition, Indirect Tensile Fatigue Test (ITFT) was performed on mixes containing these additives. Correlation equations were developed to link fatigue behavior of binders to those of mixes. The results showed acceptable agreement between binders and mixes fatigue testing results. In addition, with predicted models it was able to obtain the asphalt binders contribution to mixes fatigue resistance. However, in the case of ash modified samples, no good correlation was observed between fatigue behavior of binders and that of mixes.

THE FATIGUE BEHAVIOR OF FRESHWATER ICE

1987 ◽  
Vol 48 (C1) ◽  
pp. C1-329-C1-335 ◽  
Author(s):  
W. A. NIXON ◽  
R. A. SMITH
Keyword(s):  
Fatigue Behavior ◽  
Freshwater Ice

Effects of Vehicle Loads and Structure Combinations on Rutting Depth of Asphalt Pavements with Varied Base Layers in Toll Plazas

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Yan Li ◽  
Yanlong Han ◽  
Yuanbo Cao ◽  
Jiupeng Zhang ◽  
Fuyu Wang ◽  
...  
Keyword(s):  
Asphalt Pavements ◽  
Toll Plazas ◽  
Vehicle Loads
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