Trials of High-friction Surfaces for Highways

Trials of High-friction Surfaces for Highways PDF Author: J.C. Nicholls
Publisher: Thomas Telford
ISBN: 9780727728050
Category : Pavements
Languages : en
Pages : 32

Book Description
High-friction surface systems are used to support the DETR`s skidding standard on high stress sites. Until recently an epoxy resin was used as a binder to obtain the necessary skid resistance, but with increased demand for high-friction surface systems, alternative systems have come onto the market using different resins as binders. This report describes a series of road trials, set up to compare the performance of a range of resin systems (epoxy-resin, polyurethane-resin, acrylic-resin and rosin-ester). Systems are ranked in terms of maintained skid resistance, texture depth and longevity. Consideration of the different laying techniques employed for different resins indicates that the choice of resin type may be influenced by constraints imposed while laying as well as the performance requirements in service. The results from a series of laboratory tests which have been devised to simulate accelerated wear under trafficking support the road trial conclusions. The results have been used to develop performance-related criteria for a Highway Authorities Product Approval Scheme (HAPAS) certification procedure which can be used to assess existing systems and systems that may be developed in future.

Laboratory Tests on High-Friction Surfaces for Highways

Laboratory Tests on High-Friction Surfaces for Highways PDF Author: J.C. Nicholls
Publisher: Thomas Telford
ISBN: 9780727727947
Category : Motor vehicles
Languages : en
Pages : 48

Book Description
- Executive summary - Abstract - Introduction - Test Methods - Test programme - Conclusion - Acknowledgements - References - Appendix A: Requirements for Asphalt slabs - Appendix B: Requirements for Concrete slabs - Appendix C: Procedure for applying High-friction surfaces and the measurement of the surfacing thickness - Appendix D: Test procedure for determination of texture depth - Appendix E: Test procedure for determination of skid resistance value - Appendix F: Test procedure for determination of the degree of erosion and visual observations - Appendix G: Test procedure for scuffing - Appendix H: Test procedure for wear - Appendix J: Test procedure for tensile adhesion - Appendix K: Procedure for heat-ageing conditioning - Appendix L: Procedure of freeze-thaw conditioning - Appendix M: Procedure for diesel susceptibility conditioning - Appendix N: Test procedure for determination of thermal movement - Appendix P: Test procedure for optional tests - Appendix Q: Test procedure for determination of resistance to peeling - Appendix R: Procedure for visual assessment of trial sites

Specification Trials of High-performance Hot Rolled Asphalt Wearing Courses

Specification Trials of High-performance Hot Rolled Asphalt Wearing Courses PDF Author: J.C. Nicholls
Publisher: Thomas Telford
ISBN: 9780727728043
Category : Asphalt cement
Languages : en
Pages : 40

Book Description
- Executive Summary - Introduction - Specification - Trial sites - Compliance testing and analysis - Monitoring - Conclusions - Acknowledgements - References - Appendix A: Summary of results from compliance test - Appendix B: Results from survey by high speed survey vehicle - Abstract - Related publications

8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements

8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements PDF Author: Armelle Chabot
Publisher: Springer
ISBN: 9402408673
Category : Technology & Engineering
Languages : en
Pages : 774

Book Description
This book presents the latest advances in research to analyze mechanical damage and its detection in multilayer systems. The contents are linked to the Rilem TC241 - MCD scientific activities and the proceedings of the 8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements (MCD2016). MCD2016 was hosted by Ifsttar and took place in Nantes, France, on June 7-9, 2016. In their lifetime, pavements undergo degradation due to different mechanisms of which cracking is among the most important ones. The damage and the fracture behavior of all its material layers as well as interfaces must be understood. In that field, the research activities aims to develop a deeper fundamental understanding of the mechanisms responsible for cracking and debonding in asphalt concrete and composite (e.g. asphalt overlays placed on PCC or thin cement concrete overlay placed on asphalt layer) pavement systems.

Polished Stone Value of Aggregates and In-Service Skidding Resistance

Polished Stone Value of Aggregates and In-Service Skidding Resistance PDF Author: P. G. Roe
Publisher: Thomas Telford
ISBN: 9780727728081
Category : Pavements
Languages : en
Pages : 36

Book Description
- Executive Summary - Introduction - Background - Studies of aggregate performance in-service - Discussion - implications of desk studies - Laboratory studies of polishing mechanism - Developing a revised standard - Proposed revision to HD28 - Further research - Conclusions - Acknowledgements - References - Appendix A: Laboratory studies of polishing mechanism - Appendix B: Comparison of PSV requirements in HD28/94 with proposed replacement - Abstract - Related publications

Asphalt Surfacings

Asphalt Surfacings PDF Author: J Cliff Nicholls
Publisher: CRC Press
ISBN: 0203477634
Category : Architecture
Languages : en
Pages : 425

Book Description
Asphalt Surfacings has been written as a reference to the various asphalt course materials and surfacing treatments that are currently available to engineers, enabling them to select the materials and/or treatment that are appropriate for use on specific sites. Appropriate reference is made to the lower structural layers as the properties of all layers interact in producing the required pavement. The current established position in the UK and the emerging developments throughout the UK and Europe are covered. The contributors are all acknowledged authorities on their particular topics selected from every part of the highway engineering industry to achieve a balance between the various approaches required by the different functions they perform.

Guide for Pavement Friction

Guide for Pavement Friction PDF Author:
Publisher: AASHTO
ISBN: 1560514280
Category : Pavements
Languages : en
Pages : 87

Book Description
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.

R & D Highway & Safety Transportation System Studies

R & D Highway & Safety Transportation System Studies PDF Author: United States. Federal Highway Administration
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 492

Book Description


Public Roads

Public Roads PDF Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 56

Book Description


Performance of Bituminous and Hydraulic Materials in Pavements

Performance of Bituminous and Hydraulic Materials in Pavements PDF Author: S.F. Brown
Publisher: Routledge
ISBN: 135142548X
Category : Technology & Engineering
Languages : en
Pages : 346

Book Description
This volume contains contributions from international experts, reflecting the rapid advances in the design of new improved bitumen and hydraulic bound composites, the trends in the use of waste and recycled materials and up-to-date methods of testing and evaluation.