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Preliminary Assessment Of Effectiveness Of Precut Technique In Controlling Transverse Cracks For Asphalt Pavement In Interior Alaska
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Book Synopsis Preliminary Assessment of Effectiveness of Precut Technique in Controlling Transverse Cracks for Asphalt Pavement in Interior Alaska by : John Jaro Netardus
Download or read book Preliminary Assessment of Effectiveness of Precut Technique in Controlling Transverse Cracks for Asphalt Pavement in Interior Alaska written by John Jaro Netardus and published by . This book was released on 2016 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transverse thermal cracking is one of the most common pavement distresses on asphalt pavements in cold climates. Transverse cracks are costly to maintain and unpleasant to drive over. The State of Alaska Department of Transportation and Public Facilities must seal cracks every summer to prevent further road damage from occurring. A simple solution that is gaining support is the precut technique where saw cuts are installed perpendicular to the road centerline shortly after construction to help relieve thermal stresses that cause cracking. This technique has effectively reduced the effects of natural transverse thermal cracking in other states as well as in Fairbanks, Alaska. This study investigates two road construction projects that include precuts with variable factors including three precut spacing intervals, five precut depths, and five pavement structures. Costs to install precuts are also compared against the cost to maintain a section without precuts in a preliminary cost effective analysis. Crack survey data from both projects have revealed that precutting does reduce transverse thermal cracking. Shorter precut spacing, placing precuts where natural cracks existed prior to construction, deeper precuts, and stronger pavement structures provided the best results. Further observations and more accurate cost data are recommended for an absolute determination of cost effectiveness.
Book Synopsis Evaluation of Crack Sealing Techniques in Alaska’s Asphalt Concrete Pavements by : Anthony P. Mullin
Download or read book Evaluation of Crack Sealing Techniques in Alaska’s Asphalt Concrete Pavements written by Anthony P. Mullin and published by . This book was released on 2016 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal cracking is one of the most prevalent asphalt concrete (AC) pavement distresses in northern states and countries. Every year in Alaska, a substantial amount of funding is spent on sealing cracks according to the practices of the Alaska Department of Transportation and Public Facilities (ADOT&PF) Maintenance and Operations (M&O) division. However, to date there are no specific guidelines available that clearly outline the best timing for crack sealing or even what conditions necessitate crack sealing in a consistent manner. There is a need to evaluate the effectiveness and best practices for using the crack sealing techniques on AC pavements in Alaska. In response to this research need, a pavement preservation project was conducted and found that although crack sealing is a very common practice in Alaska, it is unclear how and why M&O decides to seal cracks since some are sealed and some are not. This motivated further evaluation of 91 field sections that represent the various climate regions of Alaska. A new survey method, “special thermal crack evaluation (STCE) ”, was developed to answer critical questions related to road thermal cracks and to provide guidance for crack sealing practices. The new STCE method was conducted along with two other field survey methods, the Long Term Pavement Performance (LTPP) program and the Pavement Surface and Evaluation Rating (PASER). Results between methods were then correlated. Finally, regression analyses were conducted to determine factors that significantly influence crack development and crack sealing practices in Alaska. Significant influencing factors on crack development include pavement temperature, freezing index, and rut depth. Crack frequency, freezing index, pavement age, PASER rating, PASER transverse crack severity level, and certain STCE questions can significantly contribute to the decision making for current sealing practices. It was found that the STCE method could generate direct recommendations on crack sealing practices. STCE, in combination with the LTPP and PASER methods, provides specific analysis about asphalt thermal cracking and sealing of these cracks so that informed decisions can be made for a positive impact on ADOT&PF’s maintenance budget. It is recommended to use STCE along with the LTPP and PASER methods and to use the findings of influencing factors of this study to develop more specific plans for future crack sealing practices.
Book Synopsis Transverse Cracking of Asphalt Pavements by :
Download or read book Transverse Cracking of Asphalt Pavements written by and published by . This book was released on 1982 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the analysis of transverse cracking in asphalt pavement by a five state study team from Iowa, Kansas, Nebraska, North Dakota, and Oklahoma. The study was initiated under the sponsorship of the Federal Highway Administration and four evaluation conferences were held during the course of the study. Each state conducted a crack inventory on their asphalt pavement. An effort was made to correlate this inventory with numerous factors that were considered to be pertinent to the cracking problem. One state did indicate that there was a correlation between transverse cracking severity and the subsurface geology. The other states were unable to identify any significant factors as being the primary contributors. The analysis of the problem was divided into, (1) mix design, (2) maintenance, and (3) 3R rehabilitation. Many potential factors to be considered were identified under each of these three study divisions.
Book Synopsis 7th RILEM International Conference on Cracking in Pavements by : A. Scarpas
Download or read book 7th RILEM International Conference on Cracking in Pavements written by A. Scarpas and published by Springer Science & Business Media. This book was released on 2012-08-30 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent past, new materials, laboratory and in-situ testing methods and construction techniques have been introduced. In addition, modern computational techniques such as the finite element method enable the utilization of sophisticated constitutive models for realistic model-based predictions of the response of pavements. The 7th RILEM International Conference on Cracking of Pavements provided an international forum for the exchange of ideas, information and knowledge amongst experts involved in computational analysis, material production, experimental characterization, design and construction of pavements. All submitted contributions were subjected to an exhaustive refereed peer review procedure by the Scientific Committee, the Editors and a large group of international experts in the topic. On the basis of their recommendations, 129 contributions which best suited the goals and the objectives of the Conference were chosen for presentation and inclusion in the Proceedings. The strong message that emanates from the accepted contributions is that, by accounting for the idiosyncrasies of the response of pavement engineering materials, modern sophisticated constitutive models in combination with new experimental material characterization and construction techniques provide a powerful arsenal for understanding and designing against the mechanisms and the processes causing cracking and pavement response deterioration. As such they enable the adoption of truly "mechanistic" design methodologies. The papers represent the following topics: Laboratory evaluation of asphalt concrete cracking potential; Pavement cracking detection; Field investigation of pavement cracking; Pavement cracking modeling response, crack analysis and damage prediction; Performance of concrete pavements and white toppings; Fatigue cracking and damage characterization of asphalt concrete; Evaluation of the effectiveness of asphalt concrete modification; Crack growth parameters and mechanisms; Evaluation, quantification and modeling of asphalt healing properties; Reinforcement and interlayer systems for crack mitigation; Thermal and low temperature cracking of pavements; and Cracking propensity of WMA and recycled asphalts.
Book Synopsis Low Temperature Transverse Cracks in Asphalt Pavements in Interior Alaska by : Thomas E. Osterkamp
Download or read book Low Temperature Transverse Cracks in Asphalt Pavements in Interior Alaska written by Thomas E. Osterkamp and published by . This book was released on 1985 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of an investigation of low temperature transverse cracks in asphalt pavement. Focuses on crack characteristics, their seasonal variation, vertical pavement movements, and laboratory measurements of the linear thermal expansion coefficients of asphalt pavement samples.
Book Synopsis Sawing and Sealing in Bituminous Pavement to Control Cracking by : Kyle Evert
Download or read book Sawing and Sealing in Bituminous Pavement to Control Cracking written by Kyle Evert and published by . This book was released on 2007 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this project is to evaluate the ability of placing joints to control random asphalt pavement cracking. Asphalt pavements are subjected to thermals stresses due to extreme low temperatures in the northern climate. These thermal stresses cause the formation of random unsealed cracks. These unsealed cracks allow moisture to infiltrate the subgrade and base. This moisture can cause stripping of the asphalt binder on the walls of the cracks, causing the pavement structure to weaken. The weakened pavement may form depressions at the cracks, which lead to bad ride characteristics and may also cause secondary cracking. Sawing joints into new asphalt pavements at regular intervals may help control the location of thermal cracking in flexible pavement. Sawed joints are easier to fill initially and maintain in the future. Early sawing and sealing joints into the pavement controls the infiltration and reduces the stripping of asphalts"--p. 1.
Book Synopsis Rutting Evaluation of Alaskan Asphalt Pavement Containing Sustainable Materials by : Sheng Zhao
Download or read book Rutting Evaluation of Alaskan Asphalt Pavement Containing Sustainable Materials written by Sheng Zhao and published by . This book was released on 2018 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent pavement deformation, or rutting, is one of the most noticeable distresses in hot mix asphalt. In Alaska, pavement rutting concerns exist at different levels because of seasonal climate change and traffic variation across the entire state. A number of sustainable materials in recent years have been used in Alaska's pavement construction for their durability and economic and environmental benefits. These materials include modified or highly modified asphalt, warm mix asphalt (WMA), and recycled asphalt pavement (RAP). Using these materials in asphalt pavements may overturn the current understanding of rutting performance in Alaska. Therefore, this study aimed at conducting comprehensive rutting evaluations of these sustainable materials and their applications in Alaska. Based on data collected from 29 Alaskan mixtures, Spearman's rank correlation coefficient (?) was used to discover the link between asphalt pavement analyzer (APA) rut depth and asphalt mixture performance tester parameters for rutting evaluation in order to identify good rutting indicators. The correlation of APA rut depth and flow number (FN) was found to be the strongest, and FN was recommended for rutting evaluation if the APA test was not available. APA results confirmed the good rutting resistance of asphalt mixtures containing high-end modified binders, such as WMA that is produced by adding Sasobit and RAP. Preliminary field evaluation showed no significant rutting concerns in Alaska regarding the application of mixtures containing modified binders, WMA, and RAP.
Book Synopsis Design Techniques to Minimize Low-temperature Asphalt Pavement Transverse Cracking by :
Download or read book Design Techniques to Minimize Low-temperature Asphalt Pavement Transverse Cracking written by and published by . This book was released on 1981 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 5th International Symposium on Asphalt Pavements & Environment (APE) by : Marco Pasetto
Download or read book Proceedings of the 5th International Symposium on Asphalt Pavements & Environment (APE) written by Marco Pasetto and published by Springer Nature. This book was released on 2019-08-29 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume highlights the latest advances, innovations, and applications in the field of asphalt pavement technology, as presented by leading international researchers and engineers at the 5th International Symposium on Asphalt Pavements & Environment (ISAP 2019 APE Symposium), held in Padua, Italy on September 11-13, 2019. It covers a diverse range of topics concerning materials and technologies for asphalt pavements, designed for sustainability and environmental compatibility: sustainable pavement materials, marginal materials for asphalt pavements, pavement structures, testing methods and performance, maintenance and management methods, urban heat island mitigation, energy harvesting, and Life Cycle Assessment. The contributions, which were selected by means of a rigorous international peer-review process, present a wealth of exciting ideas that will open novel research directions and foster multidisciplinary collaboration among different specialists.
Book Synopsis Uniform Vehicle Code and Model Traffic Ordinance by : National Committee on Uniform Traffic Laws and Ordinances
Download or read book Uniform Vehicle Code and Model Traffic Ordinance written by National Committee on Uniform Traffic Laws and Ordinances and published by . This book was released on 1987 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Historic Lighthouse Preservation Handbook by :
Download or read book Historic Lighthouse Preservation Handbook written by and published by U.S. Government Printing Office. This book was released on 1997 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Timber Bridges by : Michael A. Ritter
Download or read book Timber Bridges written by Michael A. Ritter and published by Datamotion Publishing LLC. This book was released on 1990 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a comprehensive analysis of the design, construction, inspection, and maintenance of timber bridges.
Download or read book Gravel Roads written by Ken Skorseth and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Book Synopsis Guidelines for earthquake resistant non-engineered construction by : Arya, Anand S
Download or read book Guidelines for earthquake resistant non-engineered construction written by Arya, Anand S and published by UNESCO. This book was released on 2014-08-25 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alaska Log Building Construction Guide by : Mike Musick
Download or read book Alaska Log Building Construction Guide written by Mike Musick and published by Prepper Press. This book was released on 2017-03-12 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book contains useful information for anyone interested in building or renovating energy-efficient, quality log structures in Alaska. A number of basic procedures and techniques are described in detail to help even the novice log builder get started building his or her first log project"--Page 1.
Book Synopsis Applied Metallurgy and Corrosion Control by : Amiya Kumar Lahiri
Download or read book Applied Metallurgy and Corrosion Control written by Amiya Kumar Lahiri and published by Springer. This book was released on 2017-08-23 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as a comprehensive resource on metals and materials selection for the petrochemical industrial sector. The petrochemical industry involves large scale investments, and to maintain profitability the plants are to be operated with minimum downtime and failure of equipment, which can also cause safety hazards. To achieve this objective proper selection of materials, corrosion control, and good engineering practices must be followed in both the design and the operation of plants. Engineers and professional of different disciplines involved in these activities are required to have some basic understanding of metallurgy and corrosion. This book is written with the objective of servings as a one-stop shop for these engineering professionals. The book first covers different metallic materials and their properties, metal forming processes, welding, and corrosion and corrosion control measures. This is followed by considerations in material selection and corrosion control in three major industrial sectors, oil & gas production, oil refinery, and fertilizers. The importance of pressure vessel codes as well as inspection and maintenance repair practices have also been highlighted. The book will be useful for technicians and entry level engineers in these industrial sectors. Additionally, the book may also be used as primary or secondary reading for graduate and professional coursework.
Book Synopsis Design of Highway Bridges by : Richard M. Barker
Download or read book Design of Highway Bridges written by Richard M. Barker and published by John Wiley & Sons. This book was released on 2013-02-04 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date coverage of bridge design and analysis revised to reflect the fifth edition of the AASHTO LRFD specifications Design of Highway Bridges, Third Edition offers detailed coverage of engineering basics for the design of short- and medium-span bridges. Revised to conform with the latest fifth edition of the American Association of State Highway and Transportation Officials (AASHTO) LRFD Bridge Design Specifications, it is an excellent engineering resource for both professionals and students. This updated edition has been reorganized throughout, spreading the material into twenty shorter, more focused chapters that make information even easier to find and navigate. It also features: Expanded coverage of computer modeling, calibration of service limit states, rigid method system analysis, and concrete shear Information on key bridge types, selection principles, and aesthetic issues Dozens of worked problems that allow techniques to be applied to real-world problems and design specifications A new color insert of bridge photographs, including examples of historical and aesthetic significance New coverage of the "green" aspects of recycled steel Selected references for further study From gaining a quick familiarity with the AASHTO LRFD specifications to seeking broader guidance on highway bridge design Design of Highway Bridges is the one-stop, ready reference that puts information at your fingertips, while also serving as an excellent study guide and reference for the U.S. Professional Engineering Examination.
