Mechanistic Model To Predict The Impact Of The Aggregate Matrix On The Permanent Deformation Of Asphalt Mixtures

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Mechanistic Model to Predict the Impact of the Aggregate Matrix on the Permanent Deformation of Asphalt Mixtures

Author : Samer Hassan Dessouky
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Mechanistic Model to Predict the Impact of the Aggregate Matrix on the Permanent Deformation of Asphalt Mixtures by : Samer Hassan Dessouky

Download or read book Mechanistic Model to Predict the Impact of the Aggregate Matrix on the Permanent Deformation of Asphalt Mixtures written by Samer Hassan Dessouky and published by . This book was released on 2005 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hot mix asphalt (HMA) is a granular composite material stabilized by the presence of asphalt binder. The behavior of HMA is highly influenced by the microstructure distribution in terms of the different aggregate particles present in the mix, the directional distribution of aggregates, the distribution of voids, and the nucleation and propagation of cracks. Conventional continuum modeling of HMA lacks the ability to explicitly account for the effect of aggregate microstructure distribution features. This report presents the development of elastic and visco-plastic models that account for important aspects of the aggregate and microstructure distribution in modeling the macroscopic behavior of HMA. The objective of Project 0-1707 is to develop tools by which engineers can judge the impact of the aggregate on the performance of HMA based on simple and repeatable tests. Of greatest concern in Project 0-1707 is the ability of the HMA to resist permanent deformation or to rut, which leads to safety concerns, especially under wet surface conditions. In this report, the research team develops an approach is developed to introduce a length scale to the elasticity constitutive relationship in order to capture the influence of aggregate particle sizes on HMA response. A finite element (FE) analysis is used to analyze the microstructure response and predict the macroscopic properties of HMA. Each point in the microstructure is assigned effective local properties that are calculated using an analytical micromechanical model that captures the influence of the number of particles on the microscopic response of the HMA. The moving window technique and autocorrelation function are used to determine the microstructure characteristic length scales that are used in strain gradient elasticity. A number of asphalt mixes with different aggregate types and size distributions are analyzed . An elasto-visco-plastic continuum model is developed to predict HMA response and performance. The model incorporates a Drucker-Prager yield surface that is modified to capture the influence of stress path direction on the material response. Parameters that reflect the directional distribution of aggregates and damage density in the microstructure are included in the model. The elasto-visco-plastic model is converted into a numerical formulation and is implemented in FE analysis using a user-defined material subroutine (UMAT). A fully implicit algorithm in time-step control is used to enhance the efficiency of the FE analysis. The FE model used in this project simulates experimental data and pavement section.

Verification of Mechanistic Prediction Models for Permanent Deformation in Asphalt Mixes Using Accelerated Pavement Testing

Author : Mbakisya A. Onyango
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (32 download)

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Book Synopsis Verification of Mechanistic Prediction Models for Permanent Deformation in Asphalt Mixes Using Accelerated Pavement Testing by : Mbakisya A. Onyango

Download or read book Verification of Mechanistic Prediction Models for Permanent Deformation in Asphalt Mixes Using Accelerated Pavement Testing written by Mbakisya A. Onyango and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent deformation (rutting) is the most critical load-associated distress that develops on asphalt pavements significantly affecting their performance. Past research work focused on estimating permanent deformation of asphalt mixes using empirical prediction models or prediction models based on linear elastic material models. In recent years, mechanistic and mechanistic-empirical prediction models have been developed to take into account the behavior of asphalt material (viscoelastic, viscoplastic or elasto-visco-plastic). This research project aims to evaluate existing mechanistic models that predict permanent deformation (rutting) in asphalt mixes by comparing computed permanent deformation to that measured in a full-scale accelerated pavement test. Six pavement sections were constructed in the Civil Infrastructure Systems Laboratory (CISL) of Kansas State University with six different asphalt mixes. The sections were loaded with up to 700,000 load repetitions of a 22,000lb single axle. The transverse profiles at the pavement surface were measured periodically. For material characterization, asphalt mix samples fabricated in the laboratory, were subjected to dynamic modulus (E*), static creep - flow time (Ft), dynamic creep - flow number (Fn), triaxial and uniaxial strength tests, repetitive shear at constant height (RSCH) and frequency sweep at constant height (FSCH). The finite element software, Abaqus, was used to simulate and evaluate four permanent deformation prediction models, which are: creep model, elasto-visco-plastic model, viscoelastic model and Drucker-Prager model. The predicted permanent deformation was then compared to permanent deformation measured in CISL for the six of asphalt pavement sections. It was found that, with some improvements, creep and elasto-visco-plastic models could be used to predict permanent deformation in asphalt mixes. The viscoelastic model greatly under-predict permanent deformation, and the Drucker-Prager model with hardening criteria over predicts permanent deformation as compared to values measured in CISL.

Permanent Deformation Properties of Asphalt Concrete Mixtures

Author : Rabbira Garba
Publisher :
ISBN 13 :
Total Pages : 183 pages
Book Rating : 4.:/5 (127 download)

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Book Synopsis Permanent Deformation Properties of Asphalt Concrete Mixtures by : Rabbira Garba

Download or read book Permanent Deformation Properties of Asphalt Concrete Mixtures written by Rabbira Garba and published by . This book was released on 2002 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rutting is recognized to be the major distress mechanism in flexible pavements as a result of increase in tire pressures and axle loads. Rutting is caused by the accumulation of permanent deformation in all or some of the layers in the pavement structure. The accumulation of permanent deformation in the asphalt surfacing layer is now recognized to be the major component of rutting in flexible pavements. This is a consequence of increased tire pressures and axle loads, which subjects the asphalt surfacing layer nearest to the tire-pavement contact area to increased stresses. Thus the study of permanent deformation properties of asphalt mixtures has become the focus of research, which aim to mitigate or reduce rutting in flexible pavements. The research work reported in this thesis aims to contribute towards understanding of the material properties and factors affecting permanent deformation in asphalt mixtures, mechanisms of the permanent deformation, and methods of its prediction. The specific objectives of this research work include; review and evaluation of available models for permanent deformation of asphalt concrete mixtures, investigation of the effect of volumetric composition, loading and temperature conditions on the permanent deformation of asphalt concrete, and the identification and definition of simple measures of resistance to permanent deformation. To meet the objectives of the study a laboratory investigation is conducted on several asphalt concrete specimens with varying volumetric composition. Two testing procedures are adopted; the repeated load triaxial and triaxial creep and recovery tests. The tests were conducted at two temperature levels of 25 and 50oC under varying stress conditions. A review of literature on factors affecting permanent deformation and available models for prediction of the permanent deformation is also conducted. The literature review indicated that most of the research work done so far concentrated on evaluation of the effect on permanent deformation response of component material properties such as aggregate gradation, aggregate angularity and binder type (or grade). Most of the studies conducted on permanent deformation properties of asphalt mixtures were also found to be based on different testing procedures and methods of evaluation, which makes it difficult to compare them and draw firm conclusions. The literature also indicated that, as yet, there is no comprehensive model for deformation of asphalt concrete. Results of tests conducted in this study are analysed to investigate the effect of volumetric composition, particularly binder content and void content, and loading conditions on the permanent deformation response of the mixture. Both the binder content and void content are found to significantly influence the permanent deformation characteristics. The effect of loading conditions, i.e., the confining stress and the deviatoric stress, is also found to be significant. Throughout this study emphasis is placed on methods and parameters that are used to evaluate mixtures for their resistance to permanent deformation. The traditionally used parameters such as the slope and intercept of the power model are evaluated for their sensitivities to changes in volumetric composition. This evaluation is based on the premises that any measure of resistance to permanent deformation should be sensitive to changes in volumetric composition to be good enough. It is found that most of these parameters are not sensitive to changes in volumetric composition and therefore are not suitable for comparison of mixtures made from the same materials but with varying proportion of the components. Permanent deformation in asphalt concrete is caused by both densification and shear deformation. The mode of deformation in asphalt concrete pavements, for greater part of their service life, is considered to be the shear deformation. Therefore it is necessary to evaluate mixtures for their susceptibility to shear deformation. The shear deformation manifests itself in the form of large lateral deformation relative to axial deformation. It is found that one dimensional analysis, which does not take the lateral deformation into account may lead to misleading results regarding the resistance to permanent deformation of mixtures. Therefore parameters which include volumetric and lateral strain are proposed for use in evaluation of mixtures. Substantial effort is put into modelling the accumulation of permanent deformation under repeated loading. For this purpose two approaches were selected: the cyclic hardening model based on bounding surface plasticity concept and an elasto-viscoplastic model based on strain decomposition approach. The bounding surface plasticity approach is found to be a convenient method to model the accumulation of permanent deformation. It is demonstrated that deformations calculated using cyclic hardening model based on bounding surface plasticity fits the measured deformation quite well. The elasto-viscoplastic model, which is based on strain decomposition approach, provides a suitable method for analysis of creep and recovery test results. Deformations calculated using this model also fit the measured deformation quite well. Finally a new composite measure of resistance to permanent deformation is developed. The resistance index is based on strain decomposition approach and is simple to calculate. The index incorporates a parameter related to shear susceptibility of mixtures and is sensitive to changes in volumetric composition. It is believed that this index can be used to compare and select mixtures at mixture design stage. If its applicability to other materials is proved by further research, it can also be linked to performance related specifications, as a simple measure of performance with regard to rutting.

Prediction of Permanent Deformation in Asphalt Mixtures

Author : Hasan Al-Mosawe
Publisher :
ISBN 13 : 9783330324916
Total Pages : 236 pages
Book Rating : 4.3/5 (249 download)

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Book Synopsis Prediction of Permanent Deformation in Asphalt Mixtures by : Hasan Al-Mosawe

Download or read book Prediction of Permanent Deformation in Asphalt Mixtures written by Hasan Al-Mosawe and published by . This book was released on 2017-11-04 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Implication of Aggregates in the Design, Construction, and Performance of Flexible Pavements

Author : Hans G. Schreuders
Publisher : ASTM International
ISBN 13 : 0803111932
Total Pages : 187 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Implication of Aggregates in the Design, Construction, and Performance of Flexible Pavements by : Hans G. Schreuders

Download or read book Implication of Aggregates in the Design, Construction, and Performance of Flexible Pavements written by Hans G. Schreuders and published by ASTM International. This book was released on 1989 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:

山谷詩集鈔

Author :
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (673 download)

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Book Synopsis 山谷詩集鈔 by :

Download or read book 山谷詩集鈔 written by and published by . This book was released on 1976 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Effects of Aggregates and Mineral Fillers on Asphalt Mixture Performance

Author : Richard C. Meininger
Publisher : ASTM International
ISBN 13 : 0803114680
Total Pages : 355 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Effects of Aggregates and Mineral Fillers on Asphalt Mixture Performance by : Richard C. Meininger

Download or read book Effects of Aggregates and Mineral Fillers on Asphalt Mixture Performance written by Richard C. Meininger and published by ASTM International. This book was released on 1992 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resulting from the Symposium on [title], held in December 1991, at the ASTM Standardization Meetings in San Diego, this volume comprises 19 papers in four sections: aggregates; mineral fillers; mixture evaluation; and fatigue, modeling, and theoretical. Member price, $52. Annotation copyright Book N

Permanent Deformation Response of Asphalt Aggregate Mixes

Author : Christine W. Curtis
Publisher : National Research Council
ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Permanent Deformation Response of Asphalt Aggregate Mixes by : Christine W. Curtis

Download or read book Permanent Deformation Response of Asphalt Aggregate Mixes written by Christine W. Curtis and published by National Research Council. This book was released on 1994 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the research conducted on permanent deformation of asphalt concrete mixes as part of the SHRP Asphalt Research Program. Divided into three sections the report addresses the following: the development of a series of accelerated performance tests to measure the permanent deformation response and a constitutive relationship to define it; validation of the binder properties included in the SHRP binder specification; and the use of the test methodology in an asphalt concrete mix design and analysis system.

Permanent Deformation of Asphalt Mixtures

Author : Patrick Mwangi Muraya
Publisher :
ISBN 13 : 9783659836411
Total Pages : 280 pages
Book Rating : 4.8/5 (364 download)

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Book Synopsis Permanent Deformation of Asphalt Mixtures by : Patrick Mwangi Muraya

Download or read book Permanent Deformation of Asphalt Mixtures written by Patrick Mwangi Muraya and published by . This book was released on 2016-04-22 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Long Term Durability of Structural Materials

Author : P.J.M. Monteiro
Publisher : Elsevier
ISBN 13 : 0080535593
Total Pages : 313 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Long Term Durability of Structural Materials by : P.J.M. Monteiro

Download or read book Long Term Durability of Structural Materials written by P.J.M. Monteiro and published by Elsevier. This book was released on 2001-08-29 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Long Term Durability of Structural Materials" features proceedings of the workshop held at Berkeley, CA in October, 2000. It brought together engineers and scientists, who have received grants from the initiative NSF 98-42, to share their results on the study of long-term durability of materials and structures. The major objective was to develop new methods for accelerated short-term laboratory or in-situ tests which allow accurate, reliable, predictions of the long-term performance of materials, machines and structures. To achieve this goal it was important to understand the fundamental nature of the deterioration and damage processes in materials and to develop innovative ways to model the behavior of these processes as they affect the life and long-term performance of components, machines and structures. The researchers discussed their approach to include size effects in scaling up from laboratory specimens to actual structures. Accelerated testing and durability modeling techniques developed were validated by comparing their results with performance under actual operating conditions. The main mechanism of the deterioration discussed included environmental effects and/or exposure to loads, speeds and other operating conditions that are not fully anticipated in the original design. A broad range of deterioration damage, such as fatigue, overload, ultraviolet damage, corrosion, and wear was presented. A broad range of materials of interest was also discussed, including the full spectrum of construction materials, metals, ceramics, polymers, composites, and coatings. Emphasis was placed on scale-dependence and history of fabrication on resulting mechanical behavior of materials.

Permanent Deformation Characteristics of Dense-graded Mixes Using Asphalt Pavement Analyzer

Author : Jesús A. Sandoval-Gil
Publisher :
ISBN 13 :
Total Pages : 420 pages
Book Rating : 4.:/5 (68 download)

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Book Synopsis Permanent Deformation Characteristics of Dense-graded Mixes Using Asphalt Pavement Analyzer by : Jesús A. Sandoval-Gil

Download or read book Permanent Deformation Characteristics of Dense-graded Mixes Using Asphalt Pavement Analyzer written by Jesús A. Sandoval-Gil and published by . This book was released on 2004 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Asphalt Pavement Analyzer (APA) device was used to characterize the impact of various mix factors on the development of permanent deformation in dense-graded mixes given a standard compactive effort. Factors included two aggregate sizes, three VMA levels, two fines contents, three binder contents and four binder types. All specimens received the same compactive effort (100 gyrations) using the Superpave Gyratory Compactor (SGC). For some tests, testing temperatures followed the standard APA test protocol (64C) and for some others, the test temperature was set at the high temperature of standard performance asphalt binder grade (e.g. 70C for a PG 70-22 asphalt binder). Statistical results showed that increased binder content increased permanent deformation in the 19.0 mm dense graded mixes prepared with the PG 64-22 binder irrespective of the other mix parameters. These effects were not noted in the mixes prepared with PG 70-22 and PG 76-22 binders, when tested at 64C. However, the same effect was noted when mixes prepared with PG 70-22, PG 70-22 Modified and PG 76-22 binders were tested at the high temperature of standard performance asphalt binder grade. All mixes prepared with the stiffer binders showed very low permanent deformation when tested at the standard 64C regardless of the value of the other mix parameters. The statistical analysis of permanent deformation provides evidence that the mixes prepared with the PG 76-22 and PG 70-22 Modified binders perform better than mixes prepared with the PG 70-22 and the PG 64-22 binders. The effect of VMA on permanent deformation depends on the maximum aggregate size used, test temperature, binder type and the fines content. It was not possible to separate these interaction effects. The results of this study suggest that the APA is relatively insensitive to changes in mix properties within the range of variables studied, when using the standard APA test temperature (64C). However, the APA device is sensitive when the test temperature matches the high temperature of the standard performance binder grade (e.g. 70C for a PG 70-22 binder). Based on the results of this study, it appears that the APA can be used to indicate the rut resistance of a mixture. Although some of the mix factors have an interactive effect in the mixes, the APA has a potential to predict the relative rutting of the hot mix asphalt mixes even when polymer modified mixes are used, provided that testing is conducted at the appropriate test temperature.

Simulation of the Permanent Deformation of Asphalt Concrete Mixtures Using Discrete Element Method (DEM)

Author : Habtamu Melese Zelelew
Publisher :
ISBN 13 :
Total Pages : 271 pages
Book Rating : 4.:/5 (218 download)

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Book Synopsis Simulation of the Permanent Deformation of Asphalt Concrete Mixtures Using Discrete Element Method (DEM) by : Habtamu Melese Zelelew

Download or read book Simulation of the Permanent Deformation of Asphalt Concrete Mixtures Using Discrete Element Method (DEM) written by Habtamu Melese Zelelew and published by . This book was released on 2008 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Viscoelastic, Fatigue Damage, and Permanent Deformation Characterization of High Rap Bituminous Mixtures Using Fine Aggregate Matrix (FAM)

Download Viscoelastic, Fatigue Damage, and Permanent Deformation Characterization of High Rap Bituminous Mixtures Using Fine Aggregate Matrix (FAM) PDF Online Free

Author : Hesamaddin Nabizadeh
Publisher :
ISBN 13 :
Total Pages : 97 pages
Book Rating : 4.:/5 (965 download)

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Book Synopsis Viscoelastic, Fatigue Damage, and Permanent Deformation Characterization of High Rap Bituminous Mixtures Using Fine Aggregate Matrix (FAM) by : Hesamaddin Nabizadeh

Download or read book Viscoelastic, Fatigue Damage, and Permanent Deformation Characterization of High Rap Bituminous Mixtures Using Fine Aggregate Matrix (FAM) written by Hesamaddin Nabizadeh and published by . This book was released on 2015 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance characteristics of bituminous mixtures play the most influential role in designing flexible pavement. These asphaltic mixtures can be considered as heterogeneous mixtures which composed of two primary components: fine aggregate matrix (FAM) phase and aggregate phase. The FAM phase acts as a critical phase in evaluating the performance characteristics including viscoelastic, fatigue damage, and permanent deformation characteristics of entire asphalt mixtures. This study evaluates the viscoelastic, fatigue damage and permanent deformation characteristics of bituminous mixtures containing 65% reclaimed asphalt pavement (RAP) by performing oscillatory torsional shear tests of cylindrical bars of FAM using a dynamic mechanical analyzer. Moreover, this study investigates a linkage between performance characteristics of asphalt concrete (AC) mixture and its corresponding FAM phase. To meet the objectives of this study, laboratory tests were performed for several FAM mixtures with 65% reclaimed asphalt pavement and different types of rejuvenators and one warm mix asphalt (WMA) additive. Test results were then analyzed using viscoelastic theories and fatigue prediction models based on continuum damage mechanics. Furthermore, obtained laboratory test results were compared with corresponding test results of asphalt concrete mixtures. The test results indicated that rejuvenators change properties and performance behavior related to fatigue damage and permanent deformation of high reclaimed asphalt pavement mixtures. In addition, test results of FAM phase were generally linked well with asphalt concrete mixture test results, and they vividly depicted that FAM phase could provide core information to predict the behavior of the asphalt concrete mixture.

Design and Characterization of Asphalt Mixtures Based on Particle Packing and Mechanical Modeling

Author : Huanan Yu
Publisher :
ISBN 13 : 9781267673350
Total Pages : pages
Book Rating : 4.6/5 (733 download)

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Book Synopsis Design and Characterization of Asphalt Mixtures Based on Particle Packing and Mechanical Modeling by : Huanan Yu

Download or read book Design and Characterization of Asphalt Mixtures Based on Particle Packing and Mechanical Modeling written by Huanan Yu and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Existing asphalt mixture design approaches are mainly empirical based "trial-and-error" methods. Based purely on volumetrics, such design methods have little consideration of the mechanical performance of the mixtures. With the trend of moving the pavement research into more mechanistic based methods and targeting the ultimate goal to good field performance, it is necessary to develop a sophisticated mix design and characterization methodology which can help the designer understand the expected engineering performance of the mix at the early stages, at the same time, to have a more efficient tool to evaluate the quality of the mixtures. This research develops a comprehensive aggregate gradation and asphalt mixture design method that estimates the mechanical properties of the mix at early stage. In this method, strong correlations between aggregate properties, volumetrics, and mechanical properties are identified, making the VMA (Voids in Mineral Aggregate) an excellent media to link the properties of aggregates and asphalt binder to their engineering performance. The concept of the design procedure, especially the aggregate gradation design procedure, is largely based on an analysis of aggregate packing and interlocking. As a fast and convenient design method that emphasizes more on the mechanical performance of the mix, the new design method can be used to evaluate the quality of an existing gradation and mix design, and adjust the gradation of a new mix to satisfy both volumetrics and mechanical properties. In addition, the characteristics of asphalt mixture are studied using micromechanical based discrete element method (DEM) and macromechanical modeling. In DEM simulation, an image based ball clumping technique is used for simulating the angularity properties of aggregate particles. The DEM model is established and calibrated to describe the viscoelastic (dynamic modulus and phase angle) and viscoelastic plastic (strength) properties of asphalt mixtures with or without damage involved. As for macromechanical modeling, a constitutive model for characterizing the permanent deformation of asphalt mixture is explored by taking consideration of the directional distribution of aggregates (anisotropy), and the damage induced by plasticity.

Development of Rutting Model for Unbound Aggregates Containing Recycled Asphalt Pavement

Author : Haifang Wen
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Development of Rutting Model for Unbound Aggregates Containing Recycled Asphalt Pavement by : Haifang Wen

Download or read book Development of Rutting Model for Unbound Aggregates Containing Recycled Asphalt Pavement written by Haifang Wen and published by . This book was released on 2013 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of recycled materials for construction is beneficial to both the environment and the economy. Recycled asphalt pavement (RAP) is one of the most commonly used recycled materials. Different state departments of transportation allow the use of RAP in base materials using various RAP percentages. Unlike conventional crushed aggregate, RAP exhibits a high resilient modulus, but also low resistance to permanent deformation, which contradicts the relationship between the modulus and permanent deformation in the permanent deformation model for unbound materials found in the mechanistic-empirical pavement design guide (MEPDG). In this study, repeated triaxial tests are conducted on samples containing different percentages of RAP and crushed aggregate. Permanent deformation prediction models for granular base course materials, introduced in 1989 by Tseng and Lytton, are modified by adding the RAP percentage as a parameter for base course materials containing RAP. The results indicate that the proposed model accounts for the effects of RAP reasonably well. Further studies are needed to validate the new rutting model by including different virgin aggregates and RAP mixtures under various testing conditions.

Asphalt-aggregate Mixture Analysis System, AAMAS

Author : National Research Council (U.S.). Transportation Research Board
Publisher : Transportation Research Board
ISBN 13 : 9780309048613
Total Pages : 196 pages
Book Rating : 4.0/5 (486 download)

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Book Synopsis Asphalt-aggregate Mixture Analysis System, AAMAS by : National Research Council (U.S.). Transportation Research Board

Download or read book Asphalt-aggregate Mixture Analysis System, AAMAS written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board. This book was released on 1991 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling and Design of Flexible Pavements and Materials

Author : Dallas N. Little
Publisher : Springer
ISBN 13 : 331958443X
Total Pages : 702 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Modeling and Design of Flexible Pavements and Materials by : Dallas N. Little

Download or read book Modeling and Design of Flexible Pavements and Materials written by Dallas N. Little and published by Springer. This book was released on 2017-09-25 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook lays out the state of the art for modeling of asphalt concrete as the major structural component of flexible pavements. The text adopts a pedagogy in which a scientific approach, based on materials science and continuum mechanics, predicts the performance of any configuration of flexible roadways subjected to cyclic loadings. The authors incorporate state-of the-art computational mechanics to predict the evolution of material properties, stresses and strains, and roadway deterioration. Designed specifically for both students and practitioners, the book presents fundamentally complex concepts in a clear and concise way that aids the roadway design community to assimilate the tools for designing sustainable roadways using both traditional and innovative technologies.