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Sampling Location Impact On Measured Asphalt Content Of Hot Mix Asphalt
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Book Synopsis Sampling Location Impact on Measured Asphalt Content of Hot Mix Asphalt by : Mohammad Abu-Hassan
Download or read book Sampling Location Impact on Measured Asphalt Content of Hot Mix Asphalt written by Mohammad Abu-Hassan and published by . This book was released on 2002 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: In May 2000, the Colorado Department of Transportation (CDOT) requested a forensic study of a project located on I-24 north of Denver. The request was made because, within a year of the 1997 overlay, longitudinal cracking appeared in the surface. Transverse cracks were attributed to reflective cracking. However, the longitudinal cracks appeared to be surface initiated. In October 2000, a forensic team reviewed the project and established a sampling and testing plan to take cores from the roadway. Based on data analysis of the cores, the higher than expected in-place air voids, the low effective asphalt, and segregation within the mat, all contributed to the early cracking.
Book Synopsis Superpave Mix Design by : Asphalt Institute
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:
Book Synopsis Asphalt Materials Science and Technology by : James G. Speight
Download or read book Asphalt Materials Science and Technology written by James G. Speight and published by Butterworth-Heinemann. This book was released on 2015-10-01 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt is a complex but popular civil engineering material. Design engineers must understand these complexities in order to optimize its use. Whether or not it is used to pave a busy highway, waterproof a rooftop or smooth out an airport runway, Asphalt Materials Science and Technology acquaints engineers with the issues and technologies surrounding the proper selection and uses of asphalts. With this book in hand, researchers and engineering will find a valuable guide to the production, use and environmental aspect of asphalt. Covers the Nomenclature and Terminology for Asphalt including: Performance Graded (PG) Binders, Asphalt Cement (AC), Asphalt-Rubber (A-R) Binder, Asphalt Emulsion and Cutback Asphalt Includes Material Selection Considerations, Testing, and applications Biodegradation of Asphalt and environmental aspects of asphalt use
Book Synopsis Occupational Exposure to Asphalt Fumes by : National Institute for Occupational Safety and Health
Download or read book Occupational Exposure to Asphalt Fumes written by National Institute for Occupational Safety and Health and published by . This book was released on 1977 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Behavior of Asphalt Pavements by : Lijun Sun
Download or read book Structural Behavior of Asphalt Pavements written by Lijun Sun and published by Butterworth-Heinemann. This book was released on 2016-08-09 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Behavior of Asphalt Pavements provides engineers and researchers with a detailed guide to the structural behavioral dynamics of asphalt pavement including: pavement temperature distribution, mechanistic response of pavement structure under the application of heavy vehicles, distress mechanism of pavement, and pavement deterioration performance and dynamic equations. An authoritative guide for understanding the key mechanisms for creating longer lasting pavements, Structural Behavior of Asphalt Pavements describes the intrinsic consistency between macroscopic performance and microscopic response, structure and material, as well as global and local performances, and demonstrates the process of pavement analyses and designs, approaching science from empirical analyses. Analyzes the external and internal factors influencing pavement temperature field, and provide a review of existing pavement temperature prediction models Introduces a “Bridge Principle through which pavement performance and fatigue properties are consolidated Defines the intrinsic consistency between macroscopic performance and microscopic response, structure and material, as well as global and local performance Summaries the mechanistic response of pavement structure under the application of heavy vehicle, distress mechanism of pavement, pavement deterioration performance and dynamic equations, and life cycle analysis of pavement
Book Synopsis Effect of Segregation on Hot Mix Asphalt Using the Asphalt Pavement Analyzer by : Stephen Alan Cross
Download or read book Effect of Segregation on Hot Mix Asphalt Using the Asphalt Pavement Analyzer written by Stephen Alan Cross and published by . This book was released on 2000 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Segregation of hot mix asphalt is a recurring problem in the paving industry. There is little documented research that quantifies the effects of segregation on mix properties and performance. The Asphalt Pavement Analyzer (APA) is a new class of pavement tester available to evaluate pavement performance. The APA can evaluate the rutting potential, moisture susceptibility and fatigue life of bituminous mixtures. Materials were available from a previous study (K-TRAN: KU-96-6) on segregation for use in evaluating the use of the APA with Kansas mixtures and materials. Two surface mixes, a BM-1B and BM-2, were fabricated to different levels of segregation as determined in the K-TRAN: KU-96-6 study. The mixtures were tested in the APA for rutting, moisture damage and fatigue life.
Book Synopsis Comparing the Volumetric and Mechanical Properties of Laboratory and Field Specimens of Asphalt Concrete by : Louay Nadhim Mohammad
Download or read book Comparing the Volumetric and Mechanical Properties of Laboratory and Field Specimens of Asphalt Concrete written by Louay Nadhim Mohammad and published by . This book was released on 2016 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reports document research that was performed to (1) determine causes of variability and tolerances for volumetric and mechanical properties of dense-graded asphalt mixtures measured within and among the three specimen types; and (2) propose a practice for state departments of transportation to incorporate these results in specifications and criteria for quality assurance, mix design verification or validation, and structural design and forensic studies. The research was conducted in two phases. In Phase I, datasets of laboratory and field test data were collected and pooled in a meta-analysis in an attempt to determine levels of variability in asphalt mixtures and the factors causing variability among and between the three specimen types. Despite the inclusion of 25 extensive datasets representing roughly 8,000 individual mixtures in the meta-analysis, the results of the analysis were inconclusive. Phase II was then undertaken--a program testing specimens from paving projects across the United States to quantify the effects of process-based factors on the variability of volumetric and mechanical properties of the specimen types. The key outcome of the research is a proposed practice for evaluating the cause and magnitude of variability within and among the three specimen types. In addition, tolerances of volumetric and conversion factors between the three specimen types of mechanical properties evaluated are proposed based on the average difference between specimen comparisons for the mixtures evaluated in Phase II. Agencies may use these proposed values to evaluate and adjust their current tolerances.
Download or read book Hot-mix Asphalt Mixtures written by and published by . This book was released on 1999 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Manual for Design of Hot Mix Asphalt with Commentary by :
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:
Book Synopsis Segregation in Hot-mix Asphalt Pavements by : Mary Stroup-Gardiner
Download or read book Segregation in Hot-mix Asphalt Pavements written by Mary Stroup-Gardiner and published by Transportation Research Board. This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bearing Capacity of Roads, Railways and Airfields by : Andreas Loizos
Download or read book Bearing Capacity of Roads, Railways and Airfields written by Andreas Loizos and published by CRC Press. This book was released on 2017-07-20 with total page 3209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bearing Capacity of Roads, Railways and Airfields includes the contributions to the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields (BCRRA 2017, 28-30 June 2017, Athens, Greece). The papers cover aspects related to materials, laboratory testing, design, construction, maintenance and management systems of transport infrastructure, and focus on roads, railways and airfields. Additional aspects that concern new materials and characterization, alternative rehabilitation techniques, technological advances as well as pavement and railway track substructure sustainability are included. The contributions discuss new concepts and innovative solutions, and are concentrated but not limited on the following topics: · Unbound aggregate materials and soil properties · Bound materials characteritics, mechanical properties and testing · Effect of traffic loading · In-situ measurements techniques and monitoring · Structural evaluation · Pavement serviceability condition · Rehabilitation and maintenance issues · Geophysical assessment · Stabilization and reinforcement · Performance modeling · Environmental challenges · Life cycle assessment and sustainability Bearing Capacity of Roads, Railways and Airfields is essential reading for academics and professionals involved or interested in transport infrastructure systems, in particular roads, railways and airfields.
Book Synopsis Mechanisms of Cracking and Debonding in Asphalt and Composite Pavements by : William G. Buttlar
Download or read book Mechanisms of Cracking and Debonding in Asphalt and Composite Pavements written by William G. Buttlar and published by Springer. This book was released on 2018-05-26 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Premature cracking in asphalt pavements and overlays continues to shorten pavement lifecycles and creates significant economic and environmental burden. In response, RILEM Technical Committee TC 241-MCD on Mechanisms of Cracking and Debonding in Asphalt and Composite Pavements has conducted a State-of-the-Art Review (STAR), as detailed in this comprehensive book. Cutting-edge research performed by RILEM members and their international partners is presented, along with summaries of open research questions and recommendations for future research. This book is organized according to the theme areas of TC 241-MCD - i.e., fracture in the asphalt bulk material, interface debonding behaviour, and advanced measurement systems. This STAR is expected to serve as a long term reference for researchers and practitioners, as it contributes to a deeper fundamental understanding of the mechanisms behind cracking and debonding in asphalt concrete and composite pavement systems.
Book Synopsis Evaluation of the Effect of Aggregate Properties of Samples Extracted Using the Ignition Furnace by : Brian D. Prowell
Download or read book Evaluation of the Effect of Aggregate Properties of Samples Extracted Using the Ignition Furnace written by Brian D. Prowell and published by . This book was released on 2000 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Superpave mix design system includes four consensus aggregate properties to ensure aggregate quality: coarse aggregate angularity, flat and elongated particles, fine aggregate angularity, and sand equivalent. In addition to determining these consensus aggregate properties, ascertaining aggregate gradations and specific gravities are also required to complete an optimal mix design. A method of extracting the asphalt from recycled asphalt pavement (or from quality control/quality assurance samples) that would produce a clean aggregate sample for analysis was needed. VDOT has used the ignition method for determining asphalt content and for the recovery of aggregates for gradation analysis since 1995. This study evaluated the effect on aggregate properties of samples extracted using the ignition furnace. For the purposes of the study, recycled asphalt pavement was artificially produced by mixing virgin aggregates with asphalt and aging the mixture prior to extraction in the ignition furnace. Consensus aggregate properties, specific gravity tests, and gradation analysis were performed on three replicates each of the virgin and recovered aggregates. Only the sand equivalent test and aggregate-specific gravities showed regular significant differences. It was found that the specific gravity values measured for aggregates recovered using the ignition furnace were closer to the measured values for the virgin aggregates than the effective specific gravity method which has been traditionally used for estimating a bulk gravity for recycled asphalt pavement. As a result of this study, recommendations were made to the Virginia Department of Transportation to change testing requirements on recycled asphalt pavement.
Book Synopsis Advances in Transportation Geotechnics 2 by : Seiichi Miura
Download or read book Advances in Transportation Geotechnics 2 written by Seiichi Miura and published by CRC Press. This book was released on 2012-08-31 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book (including a 969 pages full paper USB device) deals with the geotechnics of roads, railways and airfields. Providing economic and sustainable transportation infrastructures for societies is highly dependent on progress made in this field, and the contributions are of interest to professionals and academics involved in geotechnical and pavement engineering of roads, railways and airfields.
Book Synopsis Aggregate Contribution to Hot Mix Asphalt (HMA) Performance by :
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:
Book Synopsis Relationship of Air Voids, Lift Thickness, and Permeability in Hot Mix Asphalt Pavements by : E. Ray Brown
Download or read book Relationship of Air Voids, Lift Thickness, and Permeability in Hot Mix Asphalt Pavements written by E. Ray Brown and published by Transportation Research Board. This book was released on 2004 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 531: Relationship of Air Voids, Lift Thickness, and Permeability in Hot-Mix Asphalt Pavements provides guidance for hot-mix asphalt pavement construction designed to achieve satisfactory levels of in-place air voids and permeability. This guidance was developed from the findings of a research project that examined the relationship of air voids content to permeability and hot-mix asphalt lift thickness. The full finding of the research were published as NCHRP Web Document 68"--Publisher's description.
Book Synopsis Aggregate Contribution to Hot Mix Asphalt (HMA) Performance by : Thomas D. White
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
