analysis of hot mix asphalt (hma) linear viscoelastic and
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analysis of hot mix asphalt (hma) linear viscoelastic and.

Analysis of Hot-Mix Asphalt (HMA) Linear Viscoelastic and ...

Analysis of Hot-Mix Asphalt (HMA) Linear Viscoelastic and Bimodular Properties Using Uniaxial Compression and Indirect Tension (IDT) Tests . by . Samer W. Katicha . Abstract . The major Hot-Mix Asphalt (HMA) input for mechanistic-empirical (M-E) flexible pavement design is the dynamic complex modulus obtained from either the uniaxial or

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Analysis of Hot Mix Asphalt (HMA) Linear Viscoelastic and ...

Analysis of Hot Mix Asphalt (HMA) Linear Viscoelastic and Bimodular Properties Using Uniaxial Compression and Indirect Tension (IDT) Tests View/ Open Dissertation.pdf (3.055Mb)

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Hot mix asphalt time-temperature shifting and fitting ...

Aug 15, 2017  Analysis of hot-mix asphalt (HMA) linear viscoelastic and bimodular properties using uniaxial compression and indirect tension (IDT) tests (Doctoral dissertation) Virginia Polytechnic Institute and State University ( 2007 )

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Effect of Viscoelastic Material in Hot Mix Asphalt Rutting ...

高达12%返现  Jun 09, 2021  The Hot Mix Asphalt (HMA) mix was designed according to the Asphalt Institute MS-2 Marshall mix design procedure . A 75-blow Marshall mix design criterion and a binder with a viscosity of AC-20 were used. Crushed river gravel was used in the HMA as the aggregate.

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Analysis of Nonlinear Viscoelastic Properties of Asphalt ...

Apr 26, 2012  This study presents characterization of the nonlinear viscoelastic behavior of hot mix asphalt (HMA) at different temperatures and strain levels using the Schapery nonlinear viscoelastic model. This model is employed to describe experimental measurements of two asphalt mixes under several combined temperatures and strain levels.

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(PDF) Bimodular Analysis of Hot-Mix Asphalt Gerardo ...

Kallas B.F., “Dynamic modulus of asphalt concrete in tension and tension compression”, Proceedings of the Association of Asphalt Paving Technologists, No. 39, 1970, p. 1-23. Katicha, S.W. (2007), “Analysis of hot-mix asphalt (HMA) linear viscoelastic and bimodular properties using uniaxial compression and indirect tension (IDT) tests”.

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Dynamic analysis of thin asphalt pavements by using cross ...

The FE model simulated the hot-mix asphalt (HMA) surface layer as a linear viscoelastic material and considered the cross-anisotropic stress dependent modulus for the unbound base layer. Implicit dynamic analysis was used to consider the effect of inertia on pavement structural responses. Using two thinpavement structures of different HMA layer ...

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Discrete Element Method (DEM) Analyses for Hot-Mix Asphalt ...

Jun 09, 2011  In this study, an open source 3D DEM code implemented with the C++ programming language was modified and applied to simulate the compaction of hot-mix asphalt (HMA). A viscoelastic contact model was developed in the DEM code and was verified through comparison with well established analytical solutions.

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(PDF) Hot mix asphalt time-temperature shifting and ...

Modeling, and Simulation (GSP 182), in: Proceedings of pavement [7] S.W. Katicha, Analysis of hot-mix asphalt (HMA) linear viscoelastic and mechanics, Symposium at the 18th ASCE engineering mechanics conference bimodular properties using uniaxial compression and indirect tension (IDT) (EM2007), Blacksburg, Virginia, USA, 2007.

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Determining Dynamic Modulus of Hot Mix Asphalt (HMA)

of Hot Mix Asphalt (HMA) AASHTO Designation: T 342-11 (2015) 1. SCOPE 1.1. This test method covers procedures for preparing and testing hot mix asphalt (HMA) to determine the dynamic modulus and phase angle over a range of temperatures and loading frequencies. 1.2.

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Nonlinearly viscoelastic analysis of asphalt mixes ...

Aug 23, 2007  This study presents the characterization of the nonlinearly viscoelastic behavior of hot mix asphalt (HMA) at different temperatures and strain levels using Schapery’s model. A recursive-iterative numerical algorithm is generated for the nonlinearly viscoelastic response and implemented in a displacement-based finite element (FE) code. Then, this model is employed to describe experimental ...

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Modelling of nonlinear viscoelastic creep behaviour of hot ...

Oct 01, 2015  The viscoelastic creep behaviour of a hot-mix asphalt (HMA) was experimentally investigated via uniaxial compressive creep tests subjected to eight given stress levels of 0.1–0.8 MPa.The tests lasting for 3600 s were conducted on a MTS 809 Axial/Torsional Test System at 26 °C.The experimental results demonstrate that the creep compliance magnitude and its increment

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Principal Component Neural Networks for Modeling ...

Optimization of Hot Mix Asphalt Dynamics Modulus Abstract The dynamic modulus of hot mix asphalt (HMA) is a fundamental material property that defines the stress-strain relationship based on viscoelastic principles and is a function of HMA properties, loading rate, and temperature.

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Impact of Truck Loading on Design and Analysis of ...

UMAT) to analyze asphalt pavement subjected to heavy truck loads. Then, extensive creep-recovery tests are conducted at various stress levels and at two temperatures (30oC and 40oC) to obtain the stress- and temperature-dependent viscoelastic material properties of hot mix asphalt (HMA) mixtures.

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Poisson's Ratio of Hot Asphalt Mixtures Determined by ...

Jul 21, 2014  Currently, Poisson's ratio usually is used as a constant, based on an incorrect assumption that a hot-asphalt mix (HMA) is a linear elastic material. This paper reports Poisson's ratio as a function of time determined from the relaxation and small amplitude oscillation tests on cylindrical specimens.

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Analysis of creep properties using a flattened indirect ...

evaluation of asphalt materials due to its conveni-ence for capturing both viscoelastic properties and tensile strength. The indirect tensile testing mode is a very practical configuration for testing of asphalt concrete, as Hot Mix Asphalt (HMA) samples are often cylindrical in shape. When samples are taken

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Impact of Connection between Specimen and Load Plate on ...

Material Response of Hot Mix Asphalt Dr. Bernhard Hofko*, Prof. Ronald Blab Vienna University of Technology, Research Center of Road Engineering, Gusshausstrasse 28/E 230/3, 1040 Vienna, Austria Abstract Cyclic compression tests (CCT) on hot mix asphalt (HMA) can be employed for determining the linear viscoelastic (LVE) material response.

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CHARACTERIZATION OF ASPHALT CONCRETE USING

anisotropic damage viscoelastic-viscoplastic model that is capable of capturing hot mix asphalt (HMA) response and performance under a wide range of temperatures, loading rates, and stress states. The damage viscoelasticity model developed by Schapery (1969) is employed to present the recoverable response, and the viscoplasticity model developed at

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Sheng Hu - Assistant Reserach Engineer - Texas AM ...

Development of a new interconversion tool for hot mix asphalt (HMA) linear viscoelastic functions Canadian Journal of Civil Engineering 2010 See publication

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Use of Multiple Stress Creep Recovery Test to Evaluate ...

Assessing the linear viscoelastic behavior of asphalt cement especially polymer modified binders using complex shear modulus (G*) alone has not been recommended by many researchers in the past.

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Analytical Modelling of Visco-Elastic Behaviour of Hot-Mix ...

testing was conducted to obtain the dynamic (Complex) modulus E* of hot-mix asphalt (HMA) samples. Dynamic modulus gives an indication of linear visco-elastic (LVE) behaviour of HMA materials at different temperatures and loading frequencies; and is required for computation of stresses, strains and displacements in flexible pavement analysis ...

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Nonlinearly viscoelastic analysis of asphalt mixes ...

This study presents the characterization of the nonlinearly viscoelastic behavior of hot mix asphalt (HMA) at different temperatures and strain levels using Schapery’s model. A recursive-iterative numerical algorithm is generated for the nonlinearly viscoelastic response and implemented in a displacement-based finite element (FE) code. Then, this model is employed to describe experimental ...

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Using X-Ray Computed Tomography to Quantify Damage of

Hot-mix asphalt (HMA) is a viscoelastic and thermoplastic material that is characterized by a certain level of rigidity of an elastic solid body, but at the same time, flows and dissipates energy by frictional losses as a viscous fluid (Elseifi et al. 2003).

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MODELING REFLECTIVE CRACKING DEVELOPMENT IN HOT

Hot-mix asphalt (HMA) overlay is regarded as an efficient method to rehabilitate moderately deteriorated pavements. Despite the application of an adequately designed overlay, when HMA overlays are built on jointed concrete pavement (JCP) or a cracked surface,

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Experimental Investigations of the Viscoelastic and Damage ...

In this paper, the characteristic behaviors of hot-mix asphalt (HMA) in compression are studied by using concepts from the viscoelastic continuum damage (VECD) modeling approach. Temperature and frequency sweep tests with and without confining pressure were performed to determine the linear viscoelastic properties of HMA.

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Academia - Share research

Analysis of hot-carrier degradation in a SOI LDMOS transistor with a steep retrograde drift doping profile; Analysis of hot-mix asphalt (HMA) linear viscoelastic and bimodular properties using uniaxial compression and indirect tension (IDT) tests; Analysis of hot spots in boilers of organic Rankine cycle units during transient operation

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DEVELOPMENT AND NUMERICAL IMPLEMENTATION OF

Hot mix asphalt (HMA) is a composite material which consists of aggregates, air voids and asphalt materials. The HMA response is typically described to be viscoelastic-viscoplastic, and its response is a function of temperature, stress/strain rate, and stress/strain level. Many researches have shown that the viscoelastic response of

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Viscoelastic, Viscoplastic, and Damage Modeling of Asphalt ...

Asphalt mixture will exhibit LVE (linear viscoelastic) properties in small strain levels or a limited number of cycles load [3] [4] [5][6]. The complex modulus test in oscillating load is the most ...

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CHARACTERIZATION OF ASPHALT CONCRETE USING

anisotropic damage viscoelastic-viscoplastic model that is capable of capturing hot mix asphalt (HMA) response and performance under a wide range of temperatures, loading rates, and stress states. The damage viscoelasticity model developed by Schapery (1969) is employed to present the recoverable response, and the viscoplasticity model developed at

Get Price

Analysis of creep properties using a flattened indirect ...

evaluation of asphalt materials due to its conveni-ence for capturing both viscoelastic properties and tensile strength. The indirect tensile testing mode is a very practical configuration for testing of asphalt concrete, as Hot Mix Asphalt (HMA) samples are often cylindrical in shape. When samples are taken

Get Price

Nonlinearly viscoelastic analysis of asphalt mixes ...

Jun 01, 2007  This study presents the characterization of the nonlinearly viscoelastic behavior of hot mix asphalt (HMA) at different temperatures and strain levels using Schapery’s model. A recursive-iterative numerical algorithm is generated for the nonlinearly viscoelastic response and implemented in a displacement-based finite element (FE) code. Then, this model is employed to describe experimental ...

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3D Finite Element Analysis of HMA Overlay Mix Design to ...

This study examines the effectiveness of HMA overlay design strategies for the purpose of controlling the development of reflective cracking. A parametric study was conducted using a 3D Finite Element (FE) model of a rigid pavement section including Linear Viscoelastic (LVE) material properties for the Hot Mix Asphalt (HMA) overlay and non-uniform tire-pavement contact stresses.

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Near-surface pavement failure under multiaxial stress ...

The FE model incorporates measured 3-D tire-pavement contact stresses, hot-mix asphalt (HMA) linear viscoelasticity, continuously moving load, and implicit dynamic analysis. The multiaxial stress states (normal and shear stress) near the pavement surface under measured stresses from tire contact and from moving wheel load are presented.

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Impact of connection between specimen and load plate on ...

Abstract In routine testing of hot mix asphalt (HMA) cyclic compression tests (CCT) are carried out to assess the permanent deformation behavior. However, CCTs can also be employed for determining the material response within the linear viscoelastic domain in terms of stiffness and phase lag, when a frequency and temperature sweep is considered ...

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