Predictive Fatigue Models for Arizona Asphalt Concrete Mixtures PDF Download
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Author: Mohammad Abojaradeh
Publisher:
ISBN:
Category : Asphalt concrete
Languages : en
Pages : 766
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Book Description
Author: Mohammad Abojaradeh
Publisher:
ISBN:
Category : Asphalt concrete
Languages : en
Pages : 766
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Book Description
Author: Mena Souliman
Publisher:
ISBN:
Category : Asphalt concrete
Languages : en
Pages : 235
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Book Description
One of the main requirements of designing perpetual pavements is to determine the endurance limit of Hot Mix Asphalt (HMA). The purpose of this study was to validate the endurance limit for HMA using laboratory beam fatigue tests. A mathematical procedure was developed to determine the endurance limit of HMA due to healing that occurs during the rest periods between loading cycles. Relating healing to endurance limit makes this procedure unique compared to previous research projects that investigated these concepts separately. An extensive laboratory testing program, including 468 beam tests, was conducted according to AASHTO T321-03 test procedure. Six factors that affect the fatigue response of HMA were evaluated: binder type, binder content, air voids, test temperature, rest period and applied strain. The endurance limit was determined when no accumulated damage occurred indicating complete healing. Based on the test results, a first generation predictive model was developed to relate stiffness ratio to material properties. A second generation stiffness ratio model was also developed by replacing four factors (binder type, binder content, air voids, and temperature) with the initial stiffness of the mixture, which is a basic material property. The model also accounts for the nonlinear effects of the rest period and the applied strain on the healing and endurance limit. A third generation model was then developed by incorporation the number of loading cycles at different locations along the fatigue degradation curve for each test in order to account for the nonlinearity between stiffness ratio and loading cycles. In addition to predicting endurance limit, the model has the ability to predict the number of cycles to failure at any rest period and stiffness combination. The model was used to predict fatigue relationship curves for tests with rest period and determining the K1, K2, and K3 fatigue cracking coefficients. The three generation models predicted close endurance limit values ranging from 22 to 204 micro strains. After developing the third generation stiffness ratio model, the predicted endurance limit values were integrated in the strain-Nf fatigue relationships as a step toward incorporating the endurance limit in the MEPDG software. The results of this study can be used to design perpetual pavements that can sustain a large number of loads if traffic volumes and vehicle weights are controlled.
Author: Javed Bari
Publisher:
ISBN:
Category : Asphalt cement
Languages : en
Pages : 498
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 858
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Book Description
Author: Brian D. Prowell
Publisher: Transportation Research Board
ISBN: 0309118212
Category : Technology & Engineering
Languages : en
Pages : 139
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Book Description
At head of title: National Cooperative Highway Research Program.
Author: Eugene Skok
Publisher: DEStech Publications, Inc
ISBN: 1605951455
Category : Technology & Engineering
Languages : en
Pages : 752
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Book Description
New developments in mixing, testing, modeling Research findings on sustainable asphalt technology Bitumen use and specifications in Europe Fully-searchable text on accompanying CD-ROM Asphalt Paving Technology 2013, a series volume, contains 26 original research papers devoted to the formulation, chemistry, mixing, modeling, testing and optimization of asphalt—with applications to highway and infrastructure engineering. Written by leading civil and structural engineers from universities and government agencies around the world, the book offers information for designing and producing higher-quality asphalt. Selected keywords: photocatalytic asphalt; fatigue loading; skid-resistance; low-temperature cracking software; long-term aging; fracture properties; moisture damage; RAP; rejuvenators; binders; flexible pavement; healing. The CD-ROM displays figures and illustrations in articles in full color along with a title screen and main menu screen. Each user can link to all papers from the Table of Contents and Author Index and also link to papers and front matter by using the global bookmarks which allow navigation of the entire CD-ROM from every article. Search features on the CD-ROM can be by full text including all key words, article title, author name, and session title. The CD-ROM has Autorun feature for Windows 2000 with Service Pack 4 or higher products along with the program for Adobe Acrobat Reader with Search 11.0. One year of technical support is included with your purchase of this product.
Author: Zhanping You
Publisher: MDPI
ISBN: 3038428892
Category : Technology & Engineering
Languages : en
Pages : 431
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Book Description
This book is a printed edition of the Special Issue "Advanced Asphalt Materials and Paving Technologies" that was published in Applied Sciences
Author:
Publisher: Transportation Research Board
ISBN: 0309213649
Category : Technology & Engineering
Languages : en
Pages : 199
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Report 704: A Performance-Related Specification for Hot-Mixed Asphalt provides a proposed performance-related specification (PRS) for hot-mix asphalt (HMA) in the form of the Microsoft Windows-based Quality-Related Specification Software (QRSS). The QRSS is a stand-alone program for Microsoft Windows (versions XP and 7) that employs a database of pre-solved solutions of the Mechanistic-Empirical Pavement Design Guide. The program is capable of (1) calculating the predicted rutting, fatigue cracking, and low-temperature (thermal) cracking of an HMA pavement from the mix volumetric and binder and aggregate properties of the as-designed HMA (typically the job mix formula) and (2) comparing them with predictions calculated from the contractor's lot or sub-lot quality assurance data for the same properties.
Author: Eugene L. Skok
Publisher: DEStech Publications, Inc
ISBN: 1605950688
Category : Science
Languages : en
Pages : 801
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Book Description
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 696
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Book Description
