Effect Of Surface Macrotexture On Skid Resistance Measurements By The British Pendulum Test
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Effect Of Surface Macrotexture On Skid Resistance Measurements By The British Pendulum Test
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Author : Y. Liu
language : en
Publisher:
Release Date : 2004
Effect Of Surface Macrotexture On Skid Resistance Measurements By The British Pendulum Test written by Y. Liu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with British pendulum test categories.
The British pendulum test is a common procedure for laboratory as well as field measurement of the low-speed friction of a road surface material. It is widely suggested that the measured low-speed friction is largely governed by the surface microtexture of the road material, and many researchers and practitioners have considered the friction measurements made by the British pendulum test to be an indirect form of measurement of available microtexture of the road material. The experimental results presented in this paper show that this general view is not always correct. This study investigated the effects of test surface macrotexture represented by the following two geometric parameters: the size of subcontact areas and the magnitude of gaps between subcontact areas. The test results demonstrated that the low-speed friction measurements by the British pendulum tester were significantly affected by test surface macrotexture. This finding also implies that the closely packed aggregate condition required for the laboratory British pendulum test may not produce a correct assessment of the skid resistance of the true road surface. Laboratory measurements are likely to overestimate the skid resistance of a road surface if the surface aggregate spacing is wider than the spacing of the manually-packed laboratory specimens.
Guide For Pavement Friction
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Author :
language : en
Publisher: AASHTO
Release Date : 2008
Guide For Pavement Friction written by and has been published by AASHTO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Pavements categories.
This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.
The Design And Performance Of Road Pavements
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Author : Paul Croney
language : en
Publisher: McGraw Hill Professional
Release Date : 1997
The Design And Performance Of Road Pavements written by Paul Croney and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Pavements categories.
Aims to enable engineers to design, specify and construct pavements with regard to available materials and their most economic use. US and European research for forecasting pavement life on the basis of deflections under standard wheel loads is included as well as more detailed comparisons between US and European specifications and design procedures. SI/Metric units are used throughout.
Eleventh International Conference On The Bearing Capacity Of Roads Railways And Airfields
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Author : Inge Hoff
language : en
Publisher: CRC Press
Release Date : 2021-11-10
Eleventh International Conference On The Bearing Capacity Of Roads Railways And Airfields written by Inge Hoff and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-10 with Technology & Engineering categories.
Innovations in Road, Railway and Airfield Bearing Capacity – Volume 1 comprises the first part of contributions to the 11th International Conference on Bearing Capacity of Roads, Railways and Airfields (2022). In anticipation of the event, it unveils state-of-the-art information and research on the latest policies, traffic loading measurements, in-situ measurements and condition surveys, functional testing, deflection measurement evaluation, structural performance prediction for pavements and tracks, new construction and rehabilitation design systems, frost affected areas, drainage and environmental effects, reinforcement, traditional and recycled materials, full scale testing and on case histories of road, railways and airfields. This edited work is intended for a global audience of road, railway and airfield engineers, researchers and consultants, as well as building and maintenance companies looking to further upgrade their practices in the field.
Urban High Resolution Remote Sensing
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Author : Guoqing Zhou
language : en
Publisher: CRC Press
Release Date : 2020-12-21
Urban High Resolution Remote Sensing written by Guoqing Zhou and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-21 with Technology & Engineering categories.
Provides advances in emerging methods and algorithms in image processing and technology Uses algorithms and methodologies for handling high-resolution imagery from a ground sampling distance (GSD) less than 1.0 meter Focuses on 3D urban modelling, orthorectification methodologies, and urban feature extraction algorithms from high-resolution remotely sensed imagery Demonstrates how to apply up-to-date techniques to the problems identified and how to analyze research results Presents methods and algorithms for monitoring, analyzing, and modeling urban growth, urban planning, and socio-economic developments
Macrotexture And Drainage Measurements On A Variety Of Concrete And Asphalt Surfaces
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Author : TJ. Yager
language : en
Publisher:
Release Date : 1982
Macrotexture And Drainage Measurements On A Variety Of Concrete And Asphalt Surfaces written by TJ. Yager and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Correlation categories.
As part of a major study to develop methods for predicting tire friction performance on all types of pavements, macrotexture measurements were taken on a variety of concrete and asphalt surfaces using several different volumetric and drainage techniques. Expressions are developed which relate data obtained with each technique. Factors influencing these measurements, including operator technique and type of equipment, are identified. Comparisons also are given with skid resistance values obtained using a British portable pendulum tester. Outflowmeter measurements are presented to show the effect of surface finishes and treatments on drainage characteristics. The need to measure other surface texture parameters, such as microtexture, is suggested from comparative tire friction and surface macrotexture data obtained on two different wet surfaces. The paper concludes with comments relative to the necessity for additional studies to evaluate different surface microtexture measurement techniques in an effort to provide sufficient information to enable researchers to predict tire-pavement friction performance.
International Advanced Researches Engineering Congress 2017 Proceeding Book
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Author : Recep HALICIOGLU
language : en
Publisher: Dr. R. HALICIOGLU
Release Date : 2017-12-29
International Advanced Researches Engineering Congress 2017 Proceeding Book written by Recep HALICIOGLU and has been published by Dr. R. HALICIOGLU this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-29 with Technology & Engineering categories.
INTERNATIONAL WORKSHOPS (at IAREC'17) (This book inclueds English (main) and Turkish languages) International Workshop on Mechanical Engineering International Workshop on Mechatronics Engineering International Workshop on Energy Systems Engineering International Workshop on Automotive Engineering and Aerospace Engineering International Workshop on Material Engineering International Workshop on Manufacturing Engineering International Workshop on Physics Engineering International Workshop on Electrical and Electronics Engineering International Workshop on Computer Engineering and Software Engineering International Workshop on Chemical Engineering International Workshop on Textile Engineering International Workshop on Architecture International Workshop on Civil Engineering International Workshop on Geomatics Engineering International Workshop on Industrial Engineering International Workshop on Food Engineering International Workshop on Aquaculture Engineering International Workshop on Agriculture Engineering International Workshop on Mathematics Engineering International Workshop on Bioengineering Engineering International Workshop on Biomedical Engineering International Workshop on Genetic Engineering International Workshop on Environmental Engineering International Workshop on Other Engineering Science
Evaluation Of Pavement Friction Characteristics
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Author : John Jewett Henry
language : en
Publisher: Transportation Research Board
Release Date : 2000
Evaluation Of Pavement Friction Characteristics written by John Jewett Henry and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Technology & Engineering categories.
This synthesis report will be of interest to pavement design, construction, management, and research engineers, highway safety officials, and others concerned with pavement friction characteristics. It describes the current state of the practice and discusses the methods used for evaluating wet pavement friction characteristics of new and restored pavements. This synthesis reviews models used for measuring and evaluating friction and texture, causes for friction changes over time, and aggregate and mix design to provide adequate friction. Also presented are construction and surface restoration practices for providing good pavement surface characteristics. In addition, considerations of noise and ride quality are discussed when compromise may be required.
Engineered Cementitious Composites For Electrified Roadway In Megacities
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Author : Ali Aryo Bawono
language : en
Publisher: Springer Nature
Release Date : 2022-01-03
Engineered Cementitious Composites For Electrified Roadway In Megacities written by Ali Aryo Bawono and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-03 with Technology & Engineering categories.
This book describes the development of an innovative solution for electrified roadway pavements based on engineered cementitious composites, which are exhibiting an extreme tensile strain capacity that is much higher than conventional concrete. This enables the pavement to work without steel reinforcement and to embed a dynamic wireless power transfer technology for charging electric vehicles. At first, the book presents a modified performance-driven design approach to improve the composites to achieve the optimum pavement design in terms of functional and structural performance. It shows that the modified composites can be used to fulfil the safety and comfort factors without neglecting the characteristics of conventional ones. Further, 3D finite element and fluid dynamics models are used to analyse the pavement properties. The validated models can predict the functional performance, including skid resistance, surface water drainage, and noise. In the remaining part of the thesis, an environmentally-friendly photocatalytic function for pavement made of engineered cementitious composites is investigated. In turn, a multi-criteria design analysis is proposed to identify the optimum functional performance of the pavements. All in all, this book reports on a comprehensive approach to design, analyse and optimize engineered cementitious composites for electrified road pavement application. A special emphasis is given on applications in Singapore and other tropical megacities.
Bituminous Mixtures And Pavements Vii
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Author : A.F. Nikolaides
language : en
Publisher: CRC Press
Release Date : 2019-05-24
Bituminous Mixtures And Pavements Vii written by A.F. Nikolaides and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-24 with Technology & Engineering categories.
Highway engineers are facing the challenge not only to design and construct sustainable and safe pavements properly and economically. This implies a thorough understanding of materials behaviour, their appropriate use in the continuously changing environment, and implementation of constantly improved technologies and methodologies. Bituminous Mixtures and Pavements VII contains more than 100 contributions that were presented at the 7th International Conference ‘Bituminous Mixtures and Pavements’ (7ICONFBMP, Thessaloniki, Greece 12-14 June 2019). The papers cover a wide range of topics: - Bituminous binders - Aggregates, unbound layers and subgrade - Bituminous mixtures (Hot, Warm and Cold) - Pavements (Design, Construction, Maintenance, Sustainability, Energy and environment consideration) - Pavement management - Pavement recycling - Geosynthetics - Pavement assessment, surface characteristics and safety - Posters Bituminous Mixtures and Pavements VII reflects recent advances in highway materials technology and pavement engineering, and will be of interest to academics and professionals interested or involved in these areas.