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Book Evaluation of Long term Pavement Performance and Noise Characteristics of the Next Generation Concrete Surface

Download or read book Evaluation of Long term Pavement Performance and Noise Characteristics of the Next Generation Concrete Surface written by and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the construction of the first Next Generation Concrete Surface (NGCS) by the Washington State Department of Transportation (WSDOT). A 1,500 foot test section was installed on the eastbound lanes of I-82 near Sunnyside, WA in October of 2010. Baseline measurements of noise, friction, wear and smoothness are reported. The sound intensity levels of 101.6 and 99.6 for the outside and inside lanes, respectively, are within the range reported for other NGCS projects. A literature review is provided that documents the development of the NGCS process as well as descriptions and results from the initial field trials in the U.S.

Book Evaluation of Long term Pavement Performance and Noise Characteristics of Open graded Friction Courses

Download or read book Evaluation of Long term Pavement Performance and Noise Characteristics of Open graded Friction Courses written by and published by . This book was released on 2013 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report describes ... installations of open-graded friction course (OGFC) "quieter pavements" designed to reduce the noise generated at the tire/pavement interface."

Book Nanotechnology Applied in the Design of the Next Generation of Canadian Concrete Pavement Surfaces

Download or read book Nanotechnology Applied in the Design of the Next Generation of Canadian Concrete Pavement Surfaces written by Marcelo Andres Gonzalez Hormazabal and published by . This book was released on 2014 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: High friction response in pavement improves road safety, while reduced noise production from the tire-pavement interface benefits public health and the economy of a country. According to Transport Canada, highway crashes cost Canadians approximately $67 billion annually. The economic impact of noise is difficult to quantify; however, billions of dollars have been invested in noise barriers as noise mitigation alternatives. Roadway safety is related to many factors including the friction characteristics or skid resistance of pavements. Lack of sufficient friction at the tire-pavement interface is a significant contributing factor to vehicle crashes. Skid resistance of pavement is affected by both: the microtexture of the pavement as related to the fine and coarse aggregate properties in the mortar phase of the concrete mixture; and by the macrotexture, which is defined as the measurable grooves formed in the plastic concrete during the finishing operation, or created in the hardened pavement with cutting heads consisting of uniformly spaced circular diamond saw blades. Traffic noise is also a growing concern for public health and the country's economy. Tire-pavement noise predominates over the other sources of roadway noise in many circumstances. Under accelerating conditions, the tire-pavement noise is dominant at speeds greater than 35 to 45 km/h for cars, and 45 to 55 km/h for trucks. Although the tire-pavement noise is generated through a variety of mechanisms at the tire-pavement contact patch, it is recognized that a proper design of Portland cement concrete (PCC) pavement surface may assist in reducing noise levels and thus has prompted the evaluation of new macrotextures. However, an optimization process must be carried out to achieve adequate friction while reducing noise generation through macrotexture because large macrotexture can increase friction and generate excessive noise due to an inadequate tire-pavement interaction. Next Generation Concrete Surface (NGCS) is the first new concrete pavement texture introduced in the United States in the last 20 to 30 years. NGCS also has the quietest texture developed for conventional concrete pavements, mainly through macrotexture modification. The construction process uses conventional diamond grinding equipment, but the blades have a different configuration in the drum. Currently, after the evaluations of long term pavement performance and noise characteristics of the NGCS, concerns have been reported regarding durability and increased noise level over time. In this research, a laboratory investigation examined how friction, noise absorption, and surface durability can be improved by modifying the concrete microtexture. The innovative approach of this research involved investigating those properties of concrete pavement through microtexture modification using nanotechnology. Nanotechnology involves manipulating materials at scales below 100 nm. Two different products were investigated: nanosilica applied in the cement paste, and a nano lotus leaf solution applied as a coating to mimic the lotus leaf effect. Several concrete mixes were prepared and tested in the laboratory. Results reveal that microtexture modification through the addition of nanosilica can change the properties of fresh concrete, hardened concrete, and concrete durability. In fresh concrete, the main findings indicate that nanosilica reduces the concrete slump and also reduces the air content for a given water cement ratio; however, the slump and air content can be adjusted using High Range Water Reduced and Air Entraining Admixtures. In hardened concrete, results reveal that a small amount of nanosilica can accelerate the hydration process and enhance the compressive strength and the friction response. Results also reveal that nanosilica cannot significantly modify the sound absorption coefficient. Scanning Electron Microscope (SEM) images in hardened concrete provide insight into the impact that the nanosilica has on the Interfacial Transition Zone (ITZ). Nanosilica can reduce ettringite crystal formation in voids and can also produce a denser and a more compact cement paste. Regarding durability, several abrasion tests using the rotating cutter method indicate that nanosilica can enhance the concrete's abrasion response, resulting in better wear resistance and durability of PCC road surfaces. Freezing and thawing, and scaling resistance results show that nanoconcrete is able to reduce the external damage on the PCC surface. Regarding the coating mimicking the lotus leaf effect, several concrete mixes were prepared and tested in the laboratory. Visual inspections demonstrate that it is possible to create the lotus leaf effect on concrete surfaces. Laboratory results reveal that the coating is able to maintain the friction response of concrete surfaces; however, results also reveal that the sound absorption coefficient is not significantly affected by the coating. Further research must be done to determine the coating impact on the hydroplaning effect when a heavy rainfall is present.

Book Evaluation of Long term Pavement Performance and Noise Characteristics of Open graded Friction Courses Project 2

Download or read book Evaluation of Long term Pavement Performance and Noise Characteristics of Open graded Friction Courses Project 2 written by Keith W. Anderson and published by . This book was released on 2008 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of Long term Pavement Performance and Noise Characteristics of Open graded Friction Courses Project 3

Download or read book Evaluation of Long term Pavement Performance and Noise Characteristics of Open graded Friction Courses Project 3 written by Mark A. Russell and published by . This book was released on 2010 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Vehicle Tire Road Dynamics

Download or read book Vehicle Tire Road Dynamics written by Tan Li and published by Elsevier. This book was released on 2022-11-24 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle/Tire/Road Dynamics: Handling, Ride, and NVH presents the connection between NVH and conventional vehicle dynamics where both tire and road play a key role. In this book, there is a chapter for handling dynamics that provides an introduction to ride dynamics and a chapter for ride dynamics that provides an introduction to NVH, presenting better coherence and synergy between these major areas of vehicle/tire dynamics. Accompanying the fundamental theories, case studies are given to facilitate comprehension. In addition to the experimental implementations, the state-of-the-art approaches to simulating vehicle/tire dynamics are presented from the viewpoint of both industry and academia. This new book bridges the gap for experts in tire or pavement NVH (also tire-pavement interaction noise) and those who are experts in vehicle dynamics. Conventional vehicle dynamics (e.g., handling/braking/cornering) is focused on low-frequency performance while NVH (noise/vibration/harshness) is focused on high-frequency performance. There is also another area called "ride" (comfort/stability) which focuses on mid-frequency. Presents a closed loop system for vehicle dynamics, covering handling, riden and NVH. Provides insights into how intelligent tires will enhance autonomous vehicle control and optimize multiple performances, especially for electric vehicles. Demonstrates how pavement characteristics could greatly influence vehicle handling/ride/NVH and improve/balance these performances.

Book Pavement Engineering

Download or read book Pavement Engineering written by Rajib B. Mallick and published by CRC Press. This book was released on 2022-12-30 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement Engineering: Principles and Practice examines a wide range of topics in asphalt and concrete pavements from soil preparation and structural design to life cycle costing and economic analysis. This updated Fourth Edition covers all concepts and practices of pavement engineering in terms of materials, design, and construction methods for both flexible and rigid pavements and includes the latest developments in recycling, sustainable pavement materials, and resilient infrastructure. New and updated topics include material characterization concepts and tests, pavement management concepts, probabilistic examples of life cycle cost analysis, end-of-life considerations, waste plastic in asphalt, pervious concrete, pavement monitoring instrumentation and data acquisition, and more. The latest updated references, state of the art reviews, and online resources have also been included.

Book Concrete pavement surface characteristics

Download or read book Concrete pavement surface characteristics written by and published by . This book was released on 2006 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book High Performance Concrete Pavement

Download or read book High Performance Concrete Pavement written by Todd E. Hoerner and published by . This book was released on 2002 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of U S and European Concrete Pavement Noise Reduction Materials

Download or read book Evaluation of U S and European Concrete Pavement Noise Reduction Materials written by E. Thomas Cackler and published by . This book was released on 2006 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Portland Cement Concrete Surface Characteristics

Download or read book Portland Cement Concrete Surface Characteristics written by W. James Wilde and published by . This book was released on 2013 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes an extensive data collection effort, spanning five years, and the subsequent data analysis to evaluate the performance of surface characteristics on portland cement concrete pavements that have been diamond ground with various grinding configurations. The data collected were analyzed and evaluated to observe the longterm performance of the surface characteristics of noise, friction, texture, and ride quality. In addition to the basic analysis and comparison of the performance with respect to the control cell, several other studies were performed such as the correction of noise data with ambient air temperatures at the individual third-octave frequencies and evaluation of trends in the data using various statistical analysis methods. In addition, other surface characteristics were measured to provide a baseline for comparison with potential future measurements, including rolling resistance and advanced texture characteristics. The surface characteristics evaluated indicated immediate changes were effected due to the grinding activity, and that over time (and due to the application of repetitive traffic) these immediate effects were diminished somewhat, in most cases. Based on the immediate and long-term performance of the various grinding configurations, recommendations are made in the report regarding the use of the configurations and areas suggested for further research.

Book Pavement Surface Characteristics Concrete New Construction MnROAD Study

Download or read book Pavement Surface Characteristics Concrete New Construction MnROAD Study written by and published by . This book was released on 2016 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: In pavement infrastructure, functional characteristics are mainly preponderant over structural characteristics as the former typically govern pavement rehabilitation, maintenance and reconstruction decisions. Evidently, agencies invest in provision or restoration of friction (skid resistance) and make policies to minimize traffic noise. Most agencies accept (or reject) construction projects based mainly on initial ride quality. Consequently, this study examined various concrete textures imparted on new pavements in the 2007, 2010 and 2011 MnROAD test cell construction and monitored their ride quality, friction, tire pavement noise, visual conditions and acoustic impedance over time. The study successfully developed an in-situ impedance tube evaluation method for pervious concrete for a proxy to material and hydraulic conductivity condition. It also created tenable time-series equations for the progression of the various texture characteristics and developed a friction degradation model based on traffic and texture type. Advanced data analysis showed that longitudinal texturing and negative textures were strongly associated with pavement quietness. Investment analysis revealed that certain surfaces produced noise reduction of 6 decibels over the transverse time. Those textures including pervious concrete and diamond grinding were found to be cost-beneficial for noise abatement consideration. This research also associated rectangular texturing with anomalous laser-induced ride-quality measurements. Further analysis also accentuated a correlation of pavement condition to surface acoustics thus recommending the development of impedance tube for pavement joint condition monitoring. Additionally, This research recommended drag pre-textured longitudinal-tining as the optimal texture for durability, quietness and skid resistance based on the overall research results.