Download or read book Evaluation of the Texas Tier System for Seal Coat Binder Specification written by David E. Newcomb and published by . This book was released on 2013 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seal Coat Binder Performance Specifications written by Amy Epps Martin and published by . This book was released on 2015 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statewide Implementation of the Surface Performance graded SPG Specification for Seal Coat Binders in Service Products P1 P4 P5 written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project includes three documents. (1) Seal Coat Binder Performance Specifications, 87th Annual Transportation Short Course, October 2013, 3p., PowerPoint slides covering objective, history, recommended Surface Performance Grading (SPG) specification, and implementation project. (2) SPG Specification for 2015 Implementation, 8p. (3) Texas Seal Coat Binder Utilization maps for 2013 and 2014, 4p.
Download or read book Seal Coat Specification Recommendations written by Darlene C. Goehl and published by . This book was released on 2020 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensive literature review was conducted in this project, including review of Texas Department of Transportation (TxDOT), national, and international specifications. Based on the findings and results from prior tasks, several specification changes are recommended. This report contains the proposed specifications and a summary of the key changes. Along with the specification recommendations, new test procedures are also needed as part of the specification requirements. This research focused on developing a new design procedure for application rates. It is proposed that the new design procedure be outlined in a TxDOT test procedure format, then that procedure referenced in the specificat
Download or read book Statewide Implementation of the Surface Performance Graded SPG Specification for Chip Seal Binders in Service written by Amy Epps Martin and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past almost 20 years, a Surface Performance-Graded (SPG) specification for chip seal binders was developed and validated using laboratory measurements and visual field performance of 141 highway sections. This SPG specification was established in an effort to extend the service life of chip seals and save approximately $9 million per year by providing a binder grading system and associated selection guidelines that: (1) accounts for differences in climate and (2) uses existing equipment and performance-based properties that preclude bleeding and aggregate loss in the critical first year of service after construction. This report documents a multi-year implementation effort that includes: (1) further validation and (2) industry interaction including outreach, state round robin testing programs, laboratory characterization efforts with private laboratories, and associated work with a national task force. The SPG specification now available as a special provision to Texas Department of Transportation (TxDOT) Item 300 (SP 300-011) will replace the TxDOT Chip Seal Binder Material Selection Table with the tiered system and conventional chip seal binder specifications for materials in service provided in TxDOT Item 300.
Download or read book Field Evaluation of a Seal Coat Design Method written by Jon A. Epps and published by . This book was released on 1980* with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Evaluation of the Texas Seal Coat Design Method written by R. J. Holmgreen and published by . This book was released on 1985 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seal Coat Binder Rate Adjustments Using LiDAR Data written by Darlene C. Goehl and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Texas continues to see the same recurring problems in seal coat construction, such as rock loss, flushing, and bleeding. Because of a loss of experienced inspectors and a shift in inspection forces, an increased risk to the Texas Department of Transportation (TxDOT) exists when making the appropriate field adjustments for construction. Better methods to identify changing pavement conditions and subsequently adjust construction binder rates have become available through the recently completed research project 0-6963 by using mobile light detecting and ranging (LiDAR) reflectivity data. In this study, researchers worked with the Bryan District on six 2019 and five 2020 seal coat projects, and with the Brownwood and Waco Districts on five projects in each district's 2020 summer seal coat contract using LiDAR equipment. The evaluation included applying the algorithm to provide the district with suggested shot rates. Researchers applied the algorithm to the LiDAR data and recommended binder rate adjustments. Researchers analyzed actual shot rates and compared those rates to the predicted rates. According to the generated results, researchers recommend determining the starting rate from the design procedure developed in TxDOT research project 0-6989 and determining the binder rate adjustments from LiDAR data analysis. This procedure can help field engineers make real-time decisions and can lead to better seal coat performance.
Download or read book Evaluation of a System for Measuring Seal Coat Quality written by Mariano Miguel Martino and published by . This book was released on 2007 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Chip Seal Best Practices written by Douglas D. Gransberg and published by Transportation Research Board. This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 342: Chip Seal Best Practices examines ways to assist in the development and implementation of pavement preservation programs by identifying the benefits of using chip seal as part of a preventive maintenance program and by highlighting advanced chip seal programs in use around the world. The report includes approximately 40 best practices in the areas of chip seal design methods, contract administration, equipment practices, construction practices, and performance measures. According to the report, the increased use of chip seals for maintenance can be a successful, cost-effective way of using preventive maintenance to preserve both low-volume and higher-volume pavements.
Download or read book Strengthening Forensic Science in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-07-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.
Download or read book Capital Preventive Maintenance written by and published by . This book was released on 2004 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering and Design written by Us Army Corps Of Engineers and published by Military Bookshop. This book was released on 1995-06 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual provides guidance on evaluating the condition of the concrete in a structure, relating the condition of the concrete to the underlying cause or causes of that condition, selecting an appropriate repair material and method for any deficiency found, and using the selected materials and methods to repair or rehabilitate the structure. Guidance is also included on maintenance of concrete and on preparation of concrete investigation reports for repair and rehabilitation projects. Considerations for certain specialized types of rehabilitation projects are also given.
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:
Download or read book The Conservation of Cave 85 at the Mogao Grottoes Dunhuang written by Neville Agnew and published by Getty Publications. This book was released on 2014-02-01 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mogao Grottoes, a World Heritage Site in northwestern China, are located along the ancient caravan routes—collectively known as the Silk Road—that once linked China with the West. Founded by a Buddhist monk in the late fourth century, Mogao flourished over the following millennium, as monks, local rulers, and travelers commissioned hundreds of cave temples cut into a mile-long rock cliff and adorned them with vibrant murals. More than 490 decorated grottoes remain, containing thousands of sculptures and some 45,000 square meters of wall paintings, making Mogao one of the world’s most significant sites of Buddhist art. In 1997 the Getty Conservation Institute, which had been working with the Dunhuang Academy since 1989, began a case study using the Late–Tang dynasty Cave 85 to develop a methodology that would stabilize the deteriorating wall paintings. This abundantly illustrated volume is the definitive report on the project, which was completed in 2010.
Download or read book Monitored Natural Attenuation of Inorganic Contaminants in Ground Water written by and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: V.3 ... consists of individual chapters that describe 1) the conceptual background for radionuclides, including tritium, radon, strontium, technetium, uranium, iodine, radium, thorium, cesium, plutonium-americium and 2) data requirements to be met during site characterization.
