Download or read book Performance of Recycled Asphalt Concrete Airport Pavement Surfaces written by G. D. Cline and published by . This book was released on 1986 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to make an assessment of the relative performance of recycled versus new asphalt concrete pavement surfaces constructed for airport facilities. To make this assessment, pavement condition index (PCI) surveys and tests on core samples from the hot-mix recycled pavements located on the airports at Needles, California and Valley City, North Dakota were conducted. Both pavements have a condition rating of very good. The survey and test data were compared with those for recycled highway and virgin material Navy airfield pavements. The recycled pavement at Needles is performing as good as those Navy pavements constructed with virgin material. The recycled pavement at Valley City has a higher deterioration rate than the Navy pavements but this could be attributed to the harsh climate found in North Dakota. The results of this study show that hot-mix recycling was successful at these airports but additional studies are required to determine the applicability of Asphalt Concrete (AC) recycling for reconstruction at all airports. Keywords: Recycled concrete, asphalt, pavement surfaces, airport facilities, Navy airfield pavements, hot-mix recycling.

Download or read book Impact of Reclaimed Asphalt Pavement in Asphalt Concrete Mixes Used for Airfield Pavement written by Patricia Chavez and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of reclaimed asphalt pavement (RAP) in new asphalt mixes replaces a portion of the virgin aggregate and binder, which will help with cost saving in pavement construction as well provide several environmental benefits. Currently, the Federal Aviation Administration (FAA) has no requirements and specifications for the use of RAP in accordance to the FAA Specification P401 and this research will help with the development of such specifications. The objective of this study is to create Superpave mix designs for airfields using RAP and subject them to performance related testing to provide information regarding any issues with the mix design procedure. Another objective of this project is to perform and interpret the results of laboratory testing with regard to the behavior/performance of asphalt mixes containing RAP and evaluate their suitability for use in airport pavements The experimental plan in this study included 10 different hot mix asphalt (HMA) mixes made with three different binder grades (PG 64-22, PG58-28, PG76-22PM), three RAP sources (New York, California, Alabama), and two RAP percentages (25%, 40%). A control mix with no RAP was also tested for comparison. The results of this study will be used to develop mix designs for accelerated pavement testing at the FAA National Aviation Pavement Test Facility (NAPTF) in Atlantic City, New Jersey. The results indicate that meeting the FAA's voids in mineral aggregate (VMA) requirement was problematic and while developing the mix designs with RAP the total binder content had to be reduced in order to meet the current FAA air void and VMA requirements. Performance testing showed that incorporation of RAP will improve the performance properties when compared to their respective control mixes. The statistical analysis showed that percent of RAP (by binder replacement rate) is the most significant factor affecting all performance testing and that binder grade is the least significant factor on all performance testing. It is recommended that results from this study be validated with more performance testing, including additional testing with different binder grades and performance testing for low temperature cracking. There also needs to be more testing on mix designs for airfield pavement with the addition of RAP to develop voids filled with asphalt (VFA) and dust proportion (DP) specifications.

Download or read book Evaluation of the Performance of Cold mix Recycled Asphalt Concrete Pavement in Washington written by Khossrow Babaei and published by . This book was released on 1989 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Roads and Airports Pavement Surface Characteristics written by Maurizio Crispino and published by CRC Press. This book was released on 2023-06-05 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roads and Airports Pavement Surface Characteristics contains the papers presented at the 9th International Symposium on Pavement Surface Characteristics (SURF 2022, Milan, Italy, 12-14 September 2022). The symposium was jointly organized by the Italian company that manages Italy’s National Roads (ANAS –Ferrovie dello Stato Italiane Group), the World Road Association (PIARC) and Politecnico di Milano. The contributions aim to improve the quality of pavement surface characteristics while accomplishing efficiency, safety, sustainability, and addressing new generation mobility needs. The book covers topics from emerging research to engineering practice, and is divided in the following sections: Advanced and performing construction methods and equipment Next generation mobility Data monitoring and performance assessment Surface features and performances| Maintenance and preservation treatments Pavement management Economic and political strategies Safety and risk issues Minimizing road impacts Sustainability and performances issues about materials and design Pavements surfaces and urban heat islands Weather conditions impact Airport pavements Roads and Airports Pavement Surface Characteristics is of interest to academics, engineers and professionals in the fields of pavement engineering, transport infrastructure, and related disciplines.

Download or read book Hot In place Recycling of Asphalt Concrete written by Joe W. Button and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to administrators, pavement designers, highway, material, research, and specification engineers, and others interested in economical methods for reconstructing or rehabilitating asphalt concrete pavements. It describes the processes and equipment used for hot in-place recycling of asphalt concrete and provides information on mix designs, performance, and guidelines for its effective use. A significant amount of the information provided is based on the current practices of state highway agencies. As such, numerous case histories are included in the report.

Download or read book Recycling of Asphalt Concrete Airfield Pavement A Laboratory Study written by and published by . This book was released on 1979 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory experiments have been conducted on aged asphalt concrete (AC) pavement samples obtained from three Naval airfields and two civil airports to develop and establish criteria and design guidelines for recycling such pavements. In these experiments, tests were conducted on nine agents for softening residual asphalt cements and designed hot- and cold-mix samples. It was found that aged AC pavement materials can be recycled to meet FAA and Navy specifications for new pavement surfaces and base courses by hot-mix recycling procedures and new base courses by cold-mix recycling procedures. Based on the results of this investigation, criteria and design guidelines for recycling aged AC pavements by hot-mix and cold-mix procedures have been established. (Author).

Download or read book Recycling of Portland Cement Concrete Airport Pavements written by M. C. Hironaka and published by . This book was released on 1987 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to develop criteria and guidelines for recycling portland cement concrete (PCC) airport aprons. Included in this study are all aspects of the recycling process including breakup and removal, steel reinforcement removal, crushing, screening, stockpiling, mix design, testing, placing, finishing, and performance. Recycling of PCC requires some specialized equipment such as pavement breakers and electromagnets for steel removal; however, all of the other equipment and procedures are those commonly used in the construction industry. Based on the regression experimental design procedure and laboratory tests conducted on pavement samples from six airports of widely varying age and conditions, it has been conclusively shown that aged PCC pavements can be recycled into new surface courses that meet strength requirements and have the same cyclic load carrying (fatigue) characteristics as those constructed with virgin sand content - 42 percent.

Download or read book Pavement Performance of Asphalt Surface Course Containing Reclaimed Asphalt Pavement RAP written by Xudong Hu and published by . This book was released on 2012 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reclaimed asphalt pavement (RAP) provides many advantages. The performance of a provincial road with an asphalt surface course containing RAP in Zhejiang, China was evaluated. The surface course was prepared by central plant hot mix recycling and virgin asphalt concrete. An AC-13 was chosen as gradation design in all mixes. The performance of asphalt mixture (containing 0 %, 10 %, 20 %, and 30 % RAP) was evaluated in the laboratory for fatigue resistance condition, moisture susceptibility, high-temperature stability, and low-temperature anti-cracking. Based on the laboratory results, the provincial road was constructed consisting of three sections (corresponding to 0 %, 10 %, and 20 % RAP content) in surface course with a 30-mm depth. The field site has been inspected and observed for 4 years. The field testing included deflection, skid resistance, permeable performance, and evenness evaluations. The laboratory test results show that all the testing indices satisfied the demand of the specifications, except moisture susceptibility and low temperature anti-cracking performance of the recycled asphalt concrete, including 30 % RAP. The inspection data proved that a small percentage of RAP unaffected the surface course performance, but RAP ratios greater than 20 % are not suitable in the mainline for high-volume roadways.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recycling Asphalt Concrete experimental Construction written by Thomas Scrimsher and published by . This book was released on 1986 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the construction and performance of hot asphalt concrete recycling on three projects located on Route I-5 at Weed, Route I-80 at Gold Run and Route I-10 at Blythe. In addition, various cold and one hot surface recycled projects are discussed. Also, information is presented on recycling pavements containing various fabrics and use of the nuclear gage to determine asphalt contents for recycling. Two California test methods for design of recycled mixture are presented, one for hot and one for cold recycling.

Download or read book Select List of Airport related Research Development Reports 1972 1987 written by and published by . This book was released on 1987 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of recycled asphalt concretes in airport pavement surface courses written by Yoshitaka Hachiya and published by . This book was released on 2003 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement Construction and Maintenance of Skid Resistant Airport Pavement Surfaces written by United States. Federal Aviation Administration and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Concepts and Practices for Considering GA Airport Pavement Performance and Longevity written by and published by . This book was released on 1994 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of Asphalt Concrete Airport Pavements During Thaw Weakening Periods written by Vincent C. Janoo and published by . This book was released on 1991 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pavement Life Cycle Assessment written by Imad L. Al-Qadi and published by CRC Press. This book was released on 2017-04-11 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: An increasing number of agencies, academic institutes, and governmental and industrial bodies are embracing the principles of sustainability in managing their activities and conducting business. Pavement Life-Cycle Assessment contains contributions to the Pavement Life-Cycle Assessment Symposium 2017 (Champaign, IL, USA, 12-13 April 2017) and discusses the current status of as well as future developments for LCA implementation in project- and network-level applications. The papers cover a wide variety of topics: - Recent developments for the regional inventory databases for materials, construction, and maintenance and rehabilitation life-cycle stages and critical challenges - Review of methodological choices and impact on LCA results - Use of LCA in decision making for project selection - Implementation of case studies and lessons learned: agency perspectives - Integration of LCA into pavement management systems (PMS) - Project-level LCA implementation case studies - Network-level LCA applications and critical challenges - Use-phase rolling resistance models and field validation - Uncertainty assessment in all life-cycle stages - Role of PCR and EPDs in the implementation of LCA Pavement Life-Cycle Assessment will be of interest to academics, professionals, and policymakers involved or interested in Highway and Airport Pavements.

Download or read book Concrete Containing Recycled Asphalt Pavement for Use in Concrete Pavement written by Nabil Hossiney and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Our study evaluated the feasibility of using concrete containing recycled asphalt pavement (RAP) in concrete pavement applications. Concrete containing 0[percent], 10 [percent], 20[percent] and 40[percent] of RAP were produced in the laboratory, and evaluated for their properties which are relevant to performance of concrete pavements. Using the measured properties of these concretes containing RAP, finite element analysis was then performed to determine how the concretes containing different amounts of RAP would perform if it were used in a typical concrete pavement in Florida. Results of the laboratory testing program indicate that compressive strength, splitting tensile strength, flexural strength and elastic modulus of the concrete decrease as the percentage of RAP increases. The coefficient of thermal expansion appears to increase slightly with the use of one RAP, and decrease slightly with the use of a second RAP. The drying shrinkage appears to increase slightly with increasing RAP content. When analysis was performed to determine the maximum stresses in a typical concrete pavement in Florida under critical temperature and load conditions, the maximum stress in the pavement was found to decrease as the RAP content of the mix increases, due to a decrease in its elastic modulus. This indicates that using a concrete containing RAP can result in improvement in the performance of concrete pavements.