Behavior Analysis Of Asphalt Mixtures Using Triaxial Test Determined Properties
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Behavior Analysis Of Asphalt Mixtures Using Triaxial Test Determined Properties
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Author : TF. Fwa
language : en
Publisher:
Release Date : 1995
Behavior Analysis Of Asphalt Mixtures Using Triaxial Test Determined Properties written by TF. Fwa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Angle of friction categories.
The mix design procedure for asphalt mixtures by the Mrshall method does not furnish material property parameters that can be used analytically for structural thickness design and performance analysis of pavements. This research illustrates that this missing link can be bridged by the use of laboratory triaxial test-determined properties to characterize asphalt mixtures. By means of finite element analysis using triaxial test-determined properties as input, it is illustrated that the stress-strain behavior of asphalt specimens up to failure can be simulated for the following three loading conditions: triaxial test, Marshall test, and indirect tension test. Laboratory tests involving four different asphalt mixtures are performed to provide the verification data.
Relating Triaxial Test Properties Of Asphalt Mixtures To Mix Parameters Determined By Marshall Stability Test
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Author : TF. Fwa
language : en
Publisher:
Release Date : 1997
Relating Triaxial Test Properties Of Asphalt Mixtures To Mix Parameters Determined By Marshall Stability Test written by TF. Fwa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Asphalt categories.
The conventional method of asphalt mix design based on the Marshall stability test cannot be used directly for pavement thickness design and performance analysis. On the other hand, the triaxial test that measures fundamental engineering properties of friction-cohesive materials is a well understood and established test in civil engineering, and the authors have reported in an earlier paper that triaxial test properties of asphalt mixtures can be used to study analytically the response of the mixtures under loads. In an effort to establish a link between the two tests, this paper illustrates that the three triaxial test-determined properties of an asphalt mixture, namely cohesion c, angle of friction ? and elastic modulus Ep, are statistically correlated with Marshall stability test properties of the asphalt mixture. The statistical analyses furnish useful information on the trends of variation of various material parameters as a function of mix properties. Potentially useful statistical regression predictive models are derived for predicting material parameters of the Marshall stability tests using the triaxial test properties, and vice versa. Such models make it possible to analyze pavement performance under loads for those pavements constructed based on Marshall mix design.
Engineering Properties Of Asphalt Mixtures And The Relationship To Their Performance
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Author : Gerald A. Huber
language : en
Publisher: ASTM International
Release Date : 1995
Engineering Properties Of Asphalt Mixtures And The Relationship To Their Performance written by Gerald A. Huber and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Asphalt emulsion mixtures categories.
Thirteen papers presented at the conference on [title], held in Phoenix, Arizona, December, 1994, discuss the products of the strategic highway research program, the Superpave method of mix design, and test methods for fatigue cracking and permanent deformation. Lacks an index. Annotation c. by Book
Analysis Of Marshall Test Behavior With Triaxial Test Determined Material Properties
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Author : B-H Low
language : en
Publisher:
Release Date : 1993
Analysis Of Marshall Test Behavior With Triaxial Test Determined Material Properties written by B-H Low and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Asphalt categories.
The Marshall test is one of the most common methods used for mix design and quality control of asphalt concrete mixtures. However, this method is empirical in nature and does not provide fundamental engineering properties. Fundamental engineering properties provide a basis for rational analysis and design of asphalt concrete pavements. The triaxial test method described in this paper allows engineering properties such as internal angle of friction. ?. cohesion, c, and elastic modulus. E. to be determined. The method of specimen preparation and the triaxial test setup are briefly described. A numerical simulation of the Marshall test is performed using a plane-stress finite element analysis with triaxial test determined properties as input parameters. A constitutive plasticity model based on the Drucker-Prager yield condition is used to describe the elasto-plastic behavior of the specimen. Analysis shows that the model very well describes the deformation progression before failure and can predict experimental Marshall stability value very closely. There is some underprediction of the Marshall flow, probably due to the idealization of an elastic-perfectly-plastic stress-strain relationship for asphalt concrete.
Behavior Of Asphalt Concrete Mixtures In Triaxial Compression
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Author : S-A Tan
language : en
Publisher:
Release Date : 1994
Behavior Of Asphalt Concrete Mixtures In Triaxial Compression written by S-A Tan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Asphalt categories.
The triaxial compression test is one of the most common standard tests for determining the stress-strain behavior and strength parameters of soils under drained and undrained conditions. The use of the test method in asphaltic mixtures is less well known and seldom practiced. This paper describes the use of the triaxial compression test for asphaltic mixtures for determining their engineering properties such as the friction angle ?, the cohesion, c, and the elastic compression modulus, E. Effects of test temperatures, strain rate, and confining pressures on the compressive behavior of asphalt concrete were studied. The results showed that the friction angle is primarily a function of aggregate friction and interlocking, being independent of test temperature and strain rate. The cohesion, on the other hand, is largely dependent on the binder and fines mixture being sensitive to both test temperature and strain rate changes. The confining pressures have no influence on c and ?, but have significant influence on the compression modulus. E. The tests can be conducted at controlled temperatures, constant strain-rate, and confining pressures so as to allow the determination of the basic engineering stress-strain and strength properties of these materials under controlled environmental conditions. Using these properties, a constitutive plasticity model based on the Drucker-Prager yield condition can then be applied in an axisymmetric finite element model to describe the mechanical behavior of the asphaltic material in triaxial compression. Analysis shows that the plasticity model is able to describe the stress-strain behavior of the triaxial specimen to failure, predicting both the failure strain and the failure stress fairly accurately. Comparison of analysis with measured lateral deformation at failure also show good agreement. Thus it seems that a simple idealized elastic-perfectly-plastic constitutive model, whose parameters can be determined from a triaxial compression test at constant strain-rate, is adequate to describe the behavior of asphaltic mixtures, loaded in compression to failure.
Virtual Triaxial Test Simulation Based On Discrete Element Method For Shear Resistance Property Assessment Of Asphalt Mixtures
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Author : Jun Yang
language : en
Publisher:
Release Date : 2012
Virtual Triaxial Test Simulation Based On Discrete Element Method For Shear Resistance Property Assessment Of Asphalt Mixtures written by Jun Yang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Asphaltconcrete categories.
In this paper, the shear resistance of asphalt mixtures, which accounts for the permanent deformation characteristics of flexible pavements to a large extent, is analyzed based on the discrete element (DE) method from a microscopic perspective. This study first considered the processes used to obtain the microscopic parameters for the DE model, which typically simulated an asphalt mixture based on its three components. Then the study employed Burger's model to simulate the rheological behavior of asphalt sand mastics (fine aggregates, fines, and asphalt binder). A random generation algorithm was also developed to generate coarse aggregate elements in the DE model complying with the realistic gradations of asphalt mixtures. So as to more precisely model the rheological characteristics of asphalt sand mastics, the microscopic parameters of Burger's model were calibrated via simulations of uniaxial tests in the DE model. Finally, meaningful conclusions were achieved by analyzing the simulation result and the laboratory result. The simulation result was consistent with the laboratory test result, so the use of the established DE model to evaluate the shear resistance property of asphalt mixtures is feasible.
A Study Of The Effect Of Aggregate Characteristics On The Behavior Of Asphaltic Mixtures Both Under Static And Dynamic Loading Conditions
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Author : Poduru Mohandas Karamchand Gandhi
language : en
Publisher:
Release Date : 1968
A Study Of The Effect Of Aggregate Characteristics On The Behavior Of Asphaltic Mixtures Both Under Static And Dynamic Loading Conditions written by Poduru Mohandas Karamchand Gandhi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
Performance Tests For Hot Mix Asphalt Hma Including Fundamental And Empirical Procedures
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Author : Louay Nadhim Mohammad
language : en
Publisher: ASTM International
Release Date : 2006
Performance Tests For Hot Mix Asphalt Hma Including Fundamental And Empirical Procedures written by Louay Nadhim Mohammad and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Anisotropy categories.
Proceedings Of The 9th International Conference On Civil Engineering
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Author : Guangliang Feng
language : en
Publisher: Springer Nature
Release Date : 2023-06-17
Proceedings Of The 9th International Conference On Civil Engineering written by Guangliang Feng and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-17 with Technology & Engineering categories.
This open access book is a compilation of selected papers from the 9th International Conference on Civil Engineering (ICCE2022). The work focuses on novel research findings on seismic technology of civil engineering structures, High-tech construction materials, digitalization of civil engineering, urban underground space development. The contents make valuable contributions to academic researchers and engineers.
Journal Of Testing And Evaluation
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Author :
language : en
Publisher:
Release Date : 1997
Journal Of Testing And Evaluation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Materials categories.