2008-7-26 The objective of this study is to predict the dynamic modulus of asphalt mixture using both two-dimensional (2D) and three-dimensional (3D) Distinct Element Method (DEM) generated from the X-ray computed tomography (X-ray CT) images. The 3D internal microstructure of the asphalt mixtures (i.e., spatial distribution of aggregate, sand mastic and air voids) was obtained using the X-ray CT. The X ...

Get PriceRequest PDF Dynamic modulus simulation of the asphalt concrete using the X-ray computed tomography images The objective of this study is to predict the dynamic modulus of asphalt mixture using ...

Get PriceDynamic modulus simulation of the asphalt concrete using the X-ray computed tomography images Author(s) M. E. Kutay, S. Adhikari, Z. You Publisher Springer Source Materials and Structures Keywords asphalt concrete, Distinct element, Dynamic Modulus, Micromechanics, Microstructure, Three-dimensional, Two-dimensional, X-ray computed tomography ...

Get PriceDynamic modulus simulation of the asphalt concrete using the X-ray computed tomography images

Get PriceAn experimental program was developed with a uniaxial compression test to measure the dynamic modulus of asphalt mastic and asphalt mixtures at different temperatures and loading frequencies. In the DEM simulation, the mastic properties and aggregate elastic modulus were used as input parameters.

Get PriceA micromechanical based Discrete Element Model (DEM) was used to simulate dynamic modulus of the asphalt concrete using Uni-axial Tensile (UT) model, Hollow Cylindrical Tensile (HCT) model and ...

Get PriceFinally, the asphalt concrete microstructure model was verified by comparing FEM predictions of dynamic shear modulus and phase angle with measurements obtained by using a Superpave® shear tester ...

Get Price2020-11-1 A procedure based on the simplified viscoelastic continuum damage model is developed to simulate asphalt concrete stiffness degradation caused by the application of cyclic loads. Several tests are performed to characterize the linear viscoelastic and fatigue damage properties of

Get Price2016-10-30 In order to calculate dynamic modulus of asphalt concrete based on the random aggregate model, it is essential to carry out tremendous calculation to cover the range zone of dynamic modulus of asphalt concrete. Unfortunately, it induces relatively higher energy consumption and computational cost.

Get Price2003-4-1 Modulus, E*, as a test method to characterize hot-mix asphalt mix designs. The project is a 30-month effort to: evaluate problems in implementing the protocol into DOT operations as part of the 2002 Pavement Design Guide; conduct a round robin test of the

Get Price2008-7-26 Dynamic modulus simulation of the asphalt concrete using the X-ray computed tomography images Dynamic modulus simulation of the asphalt concrete using the X-ray computed tomography images You, Zhanping; Adhikari, Sanjeev; Emin Kutay, M. 2008-07-26 00:00:00 Materials and Structures (2009) 42:617–630 DOI 10.1617/s11527-008-9408-4 O R I G IN AL ARTI CL E Dynamic modulus simulation

Get PriceIn the DEM simulation, the mastic properties and aggregate elastic modulus were used as input parameters. The strain response of the asphalt mastic and mixture models under a compressive load was monitored, and the dynamic modulus was computed. The mixture properties were obtained using images of aggregate, mastic, and air voids from the X-ray CT.

Get Price2019-4-28 Model simulations were compared with the experimental dynamic moduli of asphalt concrete mixtures. Simulation results indicated that the micromechanical approach based on the mixture microstructure and phase properties could fairly predict the overall mixture properties that are typically obtained from laboratory mixture tests.

Get PriceThis paper presents a computational micromechanics modeling approach to predict the dynamic modulus of asphalt concrete mixtures. The modeling uses a finite element method combined with the micromechanical representative volume element (RVE) of mixtures and laboratory tests that characterize the properties of individual mixture constituents.

Get Price2020-10-13 Asphalt concrete, Dynamic modulus of elasticity, Falling weight deflectometers, Hot mix asphalt, neural networks, Viscoelasticity, FWD, HMA, mater curve, relaxation modulus Disciplines Civil Engineering Comments Tech transfer summary of full report under same title.

Get Price2016-10-30 In order to calculate dynamic modulus of asphalt concrete based on the random aggregate model, it is essential to carry out tremendous calculation to cover the range zone of dynamic modulus of asphalt concrete. Unfortunately, it induces relatively higher energy consumption and computational cost.

Get Price2020-2-26 Modulus simulation of asphalt binder models using Molecular Dynamics (MD) method. The objectives of this study are, 1) to simulate asphalt binder modified with exfoliated multi-layered graphite nanoplatelets (xGNP) using the Molecular Dynamics (MD) method, and 2) to analyze different modulus properties of these asphalt binder models compared ...

Get Pricea DEM to predict the dynamic modulus of the asphalt specimens . using the heterogeneous microstructur. es visualized from X-ray CT . images. An asphalt concrete model is divided into aggregate, sand . mastic, and air void phases on the modeling. Sand mastic had a . maximum aggregate size of 1.18. mm. The modeling approach used . was . the . 3D ...

Get PriceThe objectives of this study are, 1) to simulate asphalt binder modified with exfoliated multi-layered graphite nanoplatelets (xGNP) using the Molecular Dynamics (MD) method, and 2) to analyze different modulus properties of these asphalt binder models compared with those of the control asphalt

Get Price2021-3-1 PRELIMINARY STUDY OF DYNAMIC SIMULATION FOR AIRCRAFT TIRE AND ASPHALT PAVEMENT USING ABAQUS Liu, Yang1,2; Tighe, ... = The elastic modulus of the asphalt mixture layer at temperature t (t>1 C) And the Poisson’s ratio of asphalt concrete under different temperatures was determined by NCHRP 1-37A (ARA,Inc., 2004) . ...

Get PriceDynamic Modulus of Asphalt Concrete Mixtures Using Small-Scale Specimens. The dynamic modulus of asphalt concrete (AC) mix is a primary engineering property that relates to the performance of AC pavements. This parameter is commonly measured using a cylindrical specimen having a 150mm height and a 100mm diameter (full-size specimens).

Get Price2020-10-13 Asphalt concrete, Dynamic modulus of elasticity, Falling weight deflectometers, Hot mix asphalt, neural networks, Viscoelasticity, FWD, HMA, mater curve, relaxation modulus Disciplines Civil Engineering Comments See also the related 3-page Tech Transfer Summary under the same title.

Get PriceThis study presents the results from an analytical and experimental study on the dynamic modulus testing of hot-mix asphalt using the indirect tension (IDT) mode. An analytical solution for the dynamic modulus in the IDT mode was developed with the use of linear viscoelasticity. To verify the analytical solution, temperature and frequency sweep tests were conducted on 12 asphalt mixtures ...

Get PriceThis paper presents a computational micromechanics modeling approach to predict the dynamic modulus of asphalt concrete mixtures. The modeling uses a finite element method combined with the micromechanical representative volume element (RVE) of mixtures and laboratory tests that characterize the properties of individual mixture constituents.

Get Price2020-2-26 Modulus simulation of asphalt binder models using Molecular Dynamics (MD) method. The objectives of this study are, 1) to simulate asphalt binder modified with exfoliated multi-layered graphite nanoplatelets (xGNP) using the Molecular Dynamics (MD) method, and 2) to analyze different modulus properties of these asphalt binder models compared ...

Get Price2013-11-13 This paper presents the effects of temperature and loading frequency on the dynamic modulus and phase angle of asphalt mixtures incorporating reclaimed asphalt pavement (RAP) using the asphalt mixture performance tester. Milling waste from Damansara-Puchong Expressway is incorporated in asphalt mixtures in proportions of 0%, 10%, 20%, 30% and 40%.

Get Price2021-3-1 PRELIMINARY STUDY OF DYNAMIC SIMULATION FOR AIRCRAFT TIRE AND ASPHALT PAVEMENT USING ABAQUS Liu, Yang1,2; Tighe, ... = The elastic modulus of the asphalt mixture layer at temperature t (t>1 C) And the Poisson’s ratio of asphalt concrete under different temperatures was determined by NCHRP 1-37A (ARA,Inc., 2004) . ...

Get Pricehot mix asphalt, mortar, heterogeneous generation method, dynamic modulus, global scale, local scale 1 INTRODUCTION Pavement structure consists of several layers. The upper layer is made from hot mix asphalt (HMA). It is a complex composite made of three components: bitumen, aggregates, and a percentage of voids. Several factors influence HMA

Get PriceFinally, to investigate the asphalt mixture's dynamic modulus using its elements (aggregate, binder, and mastic), heterogeneous biphasic models were generated. Homogenizing characteristics of intermediate scales is the applied method in this paper to form progressively the definitive asphalt

Get Price2021-8-11 Dynamic modulus master curve data envelopes for mixtures produced by FDR, CIR, and CCPR, as well as asphalt base mixes, using log-log scale. Dynamic Modulus Test Results 29 0 200,000 400,000 600,000 800,000 1,000,000 1,200,000 1,400,000 1,600,000 0 2,000 4,000 6,000 8,000 10,000 12,000 0.0001 0.01 1 100 10000 D yn am ic M od ul us (p si ) D yn ...

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