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Linear Viscoelastic Analysis of Asphalt Mastics
Publisher: American Society of Civil Engineers
Abstract: The dynamic shear rheometer (DSR) is used to characterize linear viscoelastic properties of asphalt cement and asphalt mastic (asphalt cement with a filler that is smaller than 75 μm in size). The study focuses on using ...
Effects of Inorganic and Polymer Filler on Tertiary Damage Development in Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: Two methods, a three-parameter (work-hardening) model and a pseudostrain energy model, were used to characterize permanent deformation-related damage potential of asphalt mixtures. The three parameters were calculated by ...
Characterization of Microdamage and Healing of Asphalt Concrete Mixtures
Publisher: American Society of Civil Engineers
Abstract: The pseudo-strain concept based on Schapery’s extended nonlinear elastic-viscoelastic correspondence principle is demonstrated by a considerable database to be able to characterize both microdamage and microdamage healing ...
Fatigue and Healing Characterization of Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: This paper investigates the effect of the processes on fatigue fracture and fracture healing during controlled-strain, dynamic mechanical analysis (DMA) testing. Sand asphalt samples were fabricated with two SHRP-classified ...
Damage-Induced Modeling of Asphalt Mixtures through Computational Micromechanics and Cohesive Zone Fracture
Publisher: American Society of Civil Engineers
Abstract: This paper presents a computational micromechanics modeling approach to predict damage-induced mechanical response of asphalt mixtures. Heterogeneous geometric characteristics and inelastic mechanical behavior were taken ...
Computational Constitutive Model for Predicting Nonlinear Viscoelastic Damage and Fracture Failure of Asphalt Concrete Mixtures
Publisher: American Society of Civil Engineers
Abstract: A computational constitutive model was developed to predict damage and fracture failure of asphalt concrete mixtures. Complex heterogeneity and inelastic mechanical behavior are addressed by the model by using finite-element ...
Rate-Type Model for Bituminous Mixtures and Its Application to Sand Asphalt
Publisher: American Society of Civil Engineers
Abstract: A variety of hot mix asphalt mixtures are used in highway and runway pavement construction. Each mixture caters to specific needs. Mixtures differ from one another in the type and percentage of aggregates and asphalt used, ...