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Author : Elie Y. Hajj
Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.:/5 (555 download)
Download or read book Fatigue Resistance of Nevada's Hot Mix Asphalt Mixtures written by Elie Y. Hajj and published by . This book was released on 2003 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Balasekaram Jayaprakas
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (994 download)
Download or read book Evaluation of Nevada's Warm Mix Asphalt Mixtures with Recycled Asphalt Pavements written by Balasekaram Jayaprakas and published by . This book was released on 2016 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study is to evaluate warm mix asphalts (WMA) with recycled asphalt pavement (RAP) from Nevada. For this study, four different warm mix technologies and four different aggregate sources with two different percentages of recycled asphalt binder ratios were used. Aggregates from Lone Mountain, North Tenaya, Spanish Springs and Lockwood were used with appropriate binders for the particular climate conditions in those areas. All the aggregates were lime-marinated, as per requirement of the Nevada Department of Transportation. Advera, Evotherm 3G, Sonnewax and waterfoam were the warm mix technologies evaluated. All four WMA mixtures satisfied all the criteria for resistance to moisture damage with or without RAP for all the aggregate sources used. In terms of fatigue, the WMA mixtures showed better results than the HMA mixture. But for the rutting resistance all of the WMA mixtures showed lower values than the HMA mixtures. This was expected, even though the WMA's rutting resistance improved when RAP was added.
Author :
Publisher :
ISBN 13 : 9780542603013
Total Pages : 188 pages
Book Rating : 4.6/5 (3 download)
Download or read book Hot Mix Asphalt Mixtures for Nevada's Intersections written by and published by . This book was released on 2005 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The state of Nevada is experiencing permanent deformation problems with hot mix asphalt pavements at or near intersections. The Nevada Department of Transportation (NDOT) is currently using a Type 2C dense graded mixture in most of its construction. The NDOT Type 2C mixture showed excellent rutting resistance under normal highway traffic, while its resistance to rutting and shoving at intersections in the hot environment of Las Vegas is questionable.The overall objective of this research was to identify a hot mix asphalt (HMA) mixture with good resistance to rutting and shoving at intersections. To this end, two laboratory evaluations were conducted: I. Postmortem evaluation of in-service intersections and II. Laboratory evaluation of different aggregate gradations. Based on past performance and data generated from this research, five different aggregate gradations were selected for laboratory evaluation. Aggregates were sampled from the Sloan quarry located south of Las Vegas, Nevada, along Interstate 15. All five gradations were mixed with a polymer-modified PG76-22NV asphalt binder which is the current specified asphalt grade for southern Nevada. A Hveem mix design was conducted for each of the five mixtures. This part of the research re-evaluated the APA and RSCH as potential candidates for a mix design test for intersection mixtures. In addition, the triaxial compression strength test and the repeated load triaxial test (RLT) were also evaluated. All tests ranked the permanent deformation resistance of the five mixtures in the same order. Additionally, dynamic mechanistic analyses were performed as an attempt to determine the pavement responses under a heavy loaded truck at and away from the intersection. The findings of the mechanistic analyses were used to predict permanent deformation potential in the HMA layer. To this end, permanent deformation models for NDOT Type 2C mixture were developed in the laboratory using the repeated load triaxial (RLT) and the repeated shear at constant height (RSCH) testing. he actual specifications used by NDOT for the various permanent deformation tests were reviewed and adjusted for the HMA mixtures that are going to be used at intersections and stopping areas. (Abstract shortened by UMI.)
Author : Brian D. Prowell
Publisher : Transportation Research Board
ISBN 13 : 0309118212
Total Pages : 139 pages
Book Rating : 4.3/5 (91 download)
Download or read book Validating the Fatigue Endurance Limit for Hot Mix Asphalt written by Brian D. Prowell and published by Transportation Research Board. This book was released on 2010 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Author : Haissam K. Sebaaly
Publisher :
ISBN 13 :
Total Pages : 113 pages
Book Rating : 4.:/5 (389 download)
Download or read book Evaluation of Nevada's Hot Mix Asphalt Mixtures Using Tire Rubber Modified Binders written by Haissam K. Sebaaly and published by . This book was released on 2007 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mohamed Monir Mohamed Said Haggag
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.:/5 (689 download)
Download or read book Fatigue Cracking Resistance Evaluation of Warm Mix Asphalt and Hot Mix Asphalt Mixtures Using Uniaxial Cyclic Tension Compression Text written by Mohamed Monir Mohamed Said Haggag and published by . This book was released on 2008 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wendy Sequeira
Publisher :
ISBN 13 :
Total Pages : 151 pages
Book Rating : 4.:/5 (1 download)
Download or read book Impact of Lime on the Mechanical Properties of HMA Mixtures in Nevada written by Wendy Sequeira and published by . This book was released on 2009 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to evaluate the impact of hydrated lime on the mechanical properties of typical HMA mixtures in Nevada. This research differed from previous studies in several respects. First, because lime is used in HMA primarily for anti-stripping benefits, previous studies rarely quantified lime's other performance benefits. Second, because testing is typically performed on only the HMA mix being considered for a project, and only as necessary to satisfy specifications, typical studies do not capture the full range of failure modes and environmental stresses. Furthermore, once specifications are met, test results are rarely translated into pavement performance characteristics. This research, by contrast, evaluated two typical HMA mixtures from the northern part of Nevada and two HMA mixtures from the southern part of Nevada used by NDOT with the most widely accepted laboratory tests. The Hveem mix design method was used in all mixtures. The tests were conducted at 0 and 6 freeze thaw cycles. The moisture damage was evaluated through the dynamic modulus test at various temperatures and frequencies. The asphalt pavement analyzer test and the repeated load triaxial test were used to evaluate the permanent deformation of the mixtures. The flexural beam test was used to assess the fatigue resistance and the thermal stress restrained specimen test was conducted to evaluate thermal cracking resistance. Additionally, mechanistic analysis was performed as an attempt to determine the pavement responses for each mix. In overall, the laboratory results and the mechanistic analysis showed that lime improved the mechanistic properties of Nevada's mixtures and its relative performance when is compared with the un-treated mixtures.
Author : Randy Clark West
Publisher : Transportation Research Board
ISBN 13 : 0309259134
Total Pages : 162 pages
Book Rating : 4.3/5 (92 download)
Download or read book Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content written by Randy Clark West and published by Transportation Research Board. This book was released on 2013 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 752: Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content describes proposed revisions to the American Association of State Highway and Transportation Officials (AASHTO) R 35, Superpave Volumetric Design for Hot Mix Asphalt, and AASHTO M 323, Superpave Volumetric Mix Design, to accommodate the design of asphalt mixtures with high reclaimed asphalt pavement contents.
Author :
Publisher : ASTM International
ISBN 13 :
Total Pages : 204 pages
Book Rating : 4./5 ( download)
Download or read book Aggregate Contribution to Hot Mix Asphalt (HMA) Performance written by and published by ASTM International. This book was released on with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ammar Ali Abdulridha
Publisher :
ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (96 download)
Download or read book Fatigue Life of Hot Mix Asphalt Mixtures written by Ammar Ali Abdulridha and published by . This book was released on 2011 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Society of Civil Engineers
Publisher :
ISBN 13 :
Total Pages : 1176 pages
Book Rating : 4.3/5 (91 download)
Download or read book Transactions of the American Society of Civil Engineers written by American Society of Civil Engineers and published by . This book was released on 2005 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 29-30 contain papers of the International Engineering Congress, Chicago, 1893; v. 54, pts. A-F, papers of the International Engineering Congress, St. Louis, 1904.
Author : Selvendran Manoharan
Publisher :
ISBN 13 :
Total Pages : 266 pages
Book Rating : 4.:/5 (182 download)
Download or read book Development of Hot Mix Asphalt Mixtures for Truckee Meadows Area written by Selvendran Manoharan and published by . This book was released on 2006 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas D. White
Publisher : ASTM International
ISBN 13 : 9780803128927
Total Pages : 210 pages
Book Rating : 4.1/5 (289 download)
Download or read book Aggregate Contribution to Hot Mix Asphalt (HMA) Performance written by Thomas D. White and published by ASTM International. This book was released on 2001 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Containing 13 papers from the December 2000 conference in Orlando, Florida, this book covers the use of the PURWheel laboratory tracking device, the Asphalt Pavement Analyzer, the identification of aggregate role, the evaluation of sensitivity, fine aggregate angularity, guidelines for the selection
Author : Edward Kwame Ofori-Abebresse
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (86 download)
Download or read book Fatigue Resistance of Hot-mix Asphalt Concrete (HMAC) Mixtures Using the Calibrated Mechanistic with Surface Energy (CMSE) Measurements Approach written by Edward Kwame Ofori-Abebresse and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue cracking is one of the fundamental distresses that occur in the life of a Hot Mix Asphalt Concrete (HMAC) pavement. This load induced distress leads to structural collapse of the entire pavement ultimately and can only be remedied by rehabilitation. There is the need, therefore, for a total understanding of the phenomenon to be able to counter its occurrence. The fatigue resistance of hot mix asphalt concrete (HMAC) has been estimated using approaches ranging from empirical methods to mechanistic-empirical methods to purely mechanistic methods. A continuum mechanics based approach called the Calibrated Mechanistic with Surface Energy (CMSE) measurements was developed at Texas A & M University and recommended after comparison with other approaches in predicting fatigue lives of two Texas HMAC mixtures. The CMSE approach which includes fundamental material properties such as fracture, aging, healing, and anisotropy has been shown to effectively model the parameters that affect the performance of HMAC pavements exposed to repetitive traffic loads. Polymer modified asphalt (PMA) improves pavement performance by providing additional resistance to the primary distresses in flexible pavements, including permanent deformation or rutting, thermal cracking, and fatigue cracking. In this research, the CMSE approach was utilized to estimate the fatigue resistance of HMAC fabricated with asphalts modified with Styrene-butadiene-Styrene (SBS) co-block polymer. These HMAC mixtures were fabricated from materials used on three different road sections in Texas and one test pavement in Minnesota. The CMSE approach was validated as an effective approach for estimating the fatigue resistance of HMAC mixtures with PMA. The effect of oxidative aging on the fatigue resistance of the HMAC mixtures was also verified. Oxidative aging of the mixtures resulted in a corresponding decrease in mixture fatigue resistance. In addition, for two HMAC mixtures with the same binder content and aggregate gradation, the mixture with the softer of the two Performance Grade (PG) binders exhibited greater fatigue resistance. The use of the Utility Theory revealed the possible effects of aggregate geometric properties on the HMAC mixture properties and consequently on their fatigue resistance.
Author : Brandon Parker Jamison
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (78 download)
Download or read book Laboratory Evaluation of Hot-mix Asphalt Concrete Fatigue Cracking Resistance written by Brandon Parker Jamison and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent changes in the Texas Department of Transportation (TxDOT) hot mix asphalt (HMA) mix design procedures to ensure that the mixture types routinely used on Texas highways are not prone to rutting raised concerns that these mixture types are now more susceptible to fatigue cracking. The primary goal of this study was to evaluate fatigue cracking test methods and recommend that which is both simple and robust, especially in qualifying commonly used Texas mixture types. One way to minimize fatigue cracking is through material screening and selection of appropriate mix designs that are representative of fatigue-resistant HMA mixes. However, there are not many standardized laboratory fracture resistance tests that have been universally adopted for routine mix design and/or screening purposes for HMA fatigue resistance. In this study, four different fracture test methods: the Overlay Tester (OT), Direct Tension (DT), Indirect Tension (IDT), and Semicircular Bending (SCB) tests were comparatively evaluated for their potential application as surrogate tests for routine fracture resistance evaluation and screening of HMA mixes in the laboratory. The evaluation criteria included: rationality of the test concept and correlation to field performance, repeatability and variability, simplicity and practicality of the sample fabrication process, and simplicity of data analysis. Results and key findings based on the laboratory fatigue resistance characterization of various commonly used Texas coarse- and fine-graded HMA mixes (Type B, C, and D) are presented in this paper. Overall, preliminary findings indicated that no monotonically-loaded test would be appropriate as a surrogate fatigue resistance test; however, the SCB test showed potential as a repeated-loading test. Suggested SCB test improvements include developing the repeated SCB test protocol, determining the appropriate failure criterion, and correlating laboratory performance to field performance.
Author : Robert Y. Liang
Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.:/5 (1 download)
Download or read book Durability and Performance Characteristics of Hot Mix Asphalt Containing Polymer Additives written by Robert Y. Liang and published by . This book was released on 2001 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ohio Department of Transportation has adopted the hot mix asphalt concrete containing polymer modifiers for use in the interstate highway pavement. Among the various reasons cited for the adoption of polymer modifiers are the favorable field experiences by ODOT, extensive literatures reporting enhanced performance, such as rutting resistance, low temperature thermal cracking resistance, and possibly fatigue endurance. However, despite these favorable findings, there are still cases involving premature failure of hot mixtures containing polymer modifiers. Concerns regarding optimum polymer content, compatibility between polymer additives and asphalt cement, proper mixing and compaction procedure remain to be resolved. Furthermore, performance based specifications to ensure production of desirable final asphalt concrete product require additional development. Questions regarding the suitability of Superpave binder testing procedures for the polymer-modified binders need to be clarified.
Author : Y. Richard Kim
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.:/5 (1 download)
Download or read book Fatigue Performance Evaluation of WesTrack Asphalt Mixtures Using Viscoelastic Continuum Damage Approach written by Y. Richard Kim and published by . This book was released on 2002 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- Objectives and summary -- Theoretical background -- Test methods -- Materials and specimen fabrication -- Uniaxial testing -- Determination of viscoelastic properties from IDT test -- Development of a simple performance test and validation -- Conclusions and recommendations -- Implementation and technology transfer plan -- References -- Appendices.
