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RISCharacterization of Asphalt Mixtures Using Controlled-Strain Repeated Direct Tension Test
Publisher: American Society of Civil Engineers
Abstract: A controlled-strain repeated direction tension (RDT) test is useful for characterizing asphalt mixtures and assessing fatigue cracking accompanied by plastic deformation. The strain curve in a loading cycle of the ...
Energy-Based Mechanistic Approach to Characterize Crack Growth of Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: Fatigue cracking is a common distress in asphalt pavements, but most existing models to predict its growth are generally empirical or phenomenological in nature. To fill this gap, this paper aims at developing an energy-based ...
Characterization of Fatigue Damage in Asphalt Mixtures Using Pseudostrain Energy
Publisher: American Society of Civil Engineers
Abstract: Fatigue cracking and permanent deformation develop simultaneously in asphalt mixtures under repeated destructive loading regardless of temperature. Because these two distinctively different damage mechanisms always occur ...
Mechanistic Composition–Specific Fatigue Life of Asphalt Pavements
Publisher: American Society of Civil Engineers
Abstract: Fatigue life is a key factor for designing an asphalt pavement, which is usually determined by a fatigue test with a failure criterion. Most of the existing criteria lack a direct identification of fatigue failure as the ...
High-Temperature Rheological Characteristics of Asphalt Binder Incorporated with Graphene Oxide and Predicting Its Rutting Potential Using Response Surface Method
Publisher: ASCE
Abstract: Rutting is one of the most common types of asphalt pavement failures. This study has investigated the high temperature performance of asphalt binders incorporating graphene oxide (GO). To this end, frequency sweep, temperature ...
Investigation and Control of Cracks in Wet Joint of Concrete Box Girders
Publisher: ASCE
Abstract: To investigate the causes of cracks in wet joints of continuous concrete box girders, we performed in situ analysis of the temperature and strain field of wet-joint concrete for a sea-crossing bridge under construction in ...
Predicting High-Cycle Fatigue Damage in Viscoelastic Bituminous Materials Using the Time–Strain Superposition Principle
Publisher: American Society of Civil Engineers
Abstract: Fatigue crack damage is a primary pavement failure; however, it is an extreme challenge to predict the fatigue damage under high-cycle loading. This paper develops a time–strain superposition principle based on the free ...
Energy-Based Kinetics Approach for Coupled Viscoplasticity and Viscofracture of Asphalt Mixtures
Publisher: ASCE
Abstract: Permanent deformation and cracking of asphalt mixtures are common distresses of pavement structures. These two damage processes are usually coupled and occur simultaneously. The evolution speed of each process across the ...
Quantification of Railway Ballast Degradation by Abrasion Testing and Computer-Aided Morphology Analysis
Publisher: ASCE
Abstract: Ballast degradation (particle breakage and abrasion) induced by repeated train loads may lead to insufficient track stiffness and excessive track settlement. For safe operation and effective maintenance of ballasted railroad ...
Mechanistic Characterization of Fatigue Damage Process and Failure Predictions of Asphalt Binders
Publisher: ASCE
Abstract: To better understand the fatigue damage characteristics of asphalt binders in a whole process, an energy-based mechanistic (EBM) approach was employed. A damage density is used to quantify the damage in the material. Two ...