Download or read book Simple Performance Test for Superpave Mix Design written by Matthew W. Witzcak and published by Transportation Research Board. This book was released on 2002 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simple Performance Tester for Superpave Mix Design written by Ramon Francis Bonaquist and published by Transportation Research Board. This book was released on 2003 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global response to COVID-19 has demonstrated the importance of vigilance and preparedness for infectious diseases, particularly influenza. There is a need for more effective influenza vaccines and modern manufacturing technologies that are adaptable and scalable to meet demand during a pandemic. The rapid development of COVID-19 vaccines has demonstrated what is possible with extensive data sharing, researchers who have the necessary resources and novel technologies to conduct and apply their research, rolling review by regulators, and public-private partnerships. As demonstrated throughout the response to COVID-19, the process of research and development of novel vaccines can be significantly optimized when stakeholders are provided with the resources and technologies needed to support their response. Vaccine Research and Development to Advance Pandemic and Seasonal Influenza Preparedness and Response focuses on how to leverage the knowledge gained from the COVID-19 pandemic to optimize vaccine research and development (R&D) to support the prevention and control of seasonal and pandemic influenza. The committee's findings address four dimensions of vaccine R&D: (1) basic and translational science, (2) clinical science, (3) manufacturing science, and (4) regulatory science.

Download or read book The SUPERPAVE Mix Design System Manual of Specifications Test Methods and Practices written by Edward T. Harrigan and published by Strategic Highway Research Program (Shrp). This book was released on 1994 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final product of the Strategic Highway Research Program (SHRP) Asphalt Research Program is the SUPERPAVE (registered trademark) mix design system for new construction and overlays. This system employs a series of new performance-based specifications, test methods, and practices for material selection, accelerated performance testing, and mix design. This report documents these new specifications and procedures in a format suitable for eventual American Association of State Highway and Transportation Officials (AASHTO) standardization.

Download or read book Simple Performance Tests written by Matthew W. Witczak and published by Transportation Research Board. This book was released on 2005 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."

Download or read book Superpave Mix Design written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Specification Criteria for Simple Performance Tests for Rutting written by Matthew W. Witczak and published by Transportation Research Board. This book was released on 2007 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Tests for Hot Mix Asphalt HMA Including Fundamental and Empirical Procedures written by Louay Nadhim Mohammad and published by ASTM International. This book was released on 2006 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improved Conditioning and Testing Procedures for HMA Moisture Susceptibility written by Mansour Solaimanian and published by Transportation Research Board. This book was released on 2007 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores whether combining the environmental conditioning system with the simple performance test would provide a superior procedure for determining the moisture susceptibility of hot-mix asphalt (HMA).

Download or read book Refining the Simple Performance Tester for Use in Routine Practice written by Ramon Francis Bonaquist and published by Transportation Research Board. This book was released on 2008 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB¿s National Cooperative Highway Research Program (NCHRP) Report 614: Refining the Simple Performance Tester for Use in Routine Practice explores the develop of a practical, economical simple performance tester (SPT) for use in routine hot-mix asphalt (HMA) mix design and in the characterization of HMA materials for pavement structural design with the Mechanistic-Empirical Pavement Design Guide.

Download or read book Public Roads written by and published by . This book was released on 1999 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wisconsin Mixture Characterization Using the Asphalt Mixture Performance Tester AMPT on Historical Aggregate Structures written by Ramon Francis Bonaquist and published by . This book was released on 2010 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Civil Engineering and Urban Planning III written by Kouros Mohammadian and published by CRC Press. This book was released on 2014-07-23 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Civil Engineering and Urban Planning III addresses civil engineering and urban planning issues associated with transportation and the environment. The contributions not only highlight current practices in these areas, but also pay attention to future research and applications, and provide an overview of the progress made in a wide variety of topics

Download or read book Evaluation of Flow Number Fn as a Discriminating HMA Mixture Property written by Ramon Francis Bonaquist and published by . This book was released on 2012 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mix Design Practices for Warm Mix Asphalt written by Ramon Francis Bonaquist and published by Transportation Research Board. This book was released on 2011 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 691: Mix Design Practices for Warm-Mix Asphalt explores a mix design method tailored to the unique material properties of warm mix asphalt technologies. Warm mix asphalt (WMA) refers to asphalt concrete mixtures that are produced at temperatures approximately 50°F (28°C) or more cooler than typically used in the production of hot mix asphalt (HMA). The goal of WMA is to produce mixtures with similar strength, durability, and performance characteristics as HMA using substantially reduced production temperatures. There are important environmental and health benefits associated with reduced production temperatures including lower greenhouse gas emissions, lower fuel consumption, and reduced exposure of workers to asphalt fumes. Lower production temperatures can also potentially improve pavement performance by reducing binder aging, providing added time for mixture compaction, and allowing improved compaction during cold weather paving. Appendices to NCHRP Report 691 include the following. Appendices A, B, and D are included in the printed and PDF version of the report. Appendices C and E are available only online.

Download or read book A Manual for Design of Hot Mix Asphalt with Commentary written by and published by Transportation Research Board. This book was released on 2011 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asphalt Paving Technology 2011 written by Eugene L. Skok and published by DEStech Publications, Inc. This book was released on 2011-06-28 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Rapid Performance Test for Superpave HMA Mixtures written by Il-Seok Oh and published by . This book was released on 2003 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent deformation and shear instability of Hot-Mix Asphalt (HMA) have been major concerns in the asphalt paving industry for a long time because permanent deformation failure, e.g., rutting and shoving, significantly reduces the ride quality of asphalt pavements and may even cause hazardous hydroplaning of vehicles. Furthermore, the fact that truck tire pressures are increasing and most of rutting occurs in the top 3 [difference] 4 inches of the HMA layer requires the production of more rut-resistant and stable mixtures. HMA mix design has escaped from its empirical stage and become more rational with the advent of the Superpave system. Superpave Level-I mix design, however, entirely depends on the volumetric properties of the mixture, without evaluating the potential performance of mixtures. In order to cope with the increasing demand for a simple performance test, extensive research has been conducted recently across the U.S. and new test methods and/or testing equipment have been introduced. Unfortunately the equipment is expensive, and the test procedures and sample preparations are rather complicated. This study sought to develop a performance test that is rapid and easy to perform so that it can be routinely used during mix design and during construction to differentiate stable from unstable or rut-susceptible mixtures. In order to be cost-effective, the Rapid Performance Test (RPT) presented in this study utilizes the existing Superpave Gyratory Compactor (SGC), without the need for new, elaborate or sophisticated equipment. However, it has been recognized that the behavior of HMA mixtures observed during the conventional compaction procedure cannot properly represent the performance of the mixture due to the unrealistically elevated compaction temperatures used in testing, and the confined movements of the mixture inside the rigid mold. Therefore the indenter of 4"--Diameter is inserted between the SGC loading platen and the mixture in order to allow plastic flow or lateral/upward movements of the mixture. Also, the RPT is performed at in-service temperatures to better capture realistic shear strength of HMA mixtures. Extensive experiments were conducted on Iowa mixes and the RPT was evaluated by the dynamic creep test using the Nottingham Asphalt Tester (NAT).