TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 445: Practices for Unbound Aggregate Pavement Layers consolidates information on the state-of-the-art and state-of-the-practice of designing and constructing unbound aggregate pavement layers. The report summarizes effective practices related to material selection, design, and construction of unbound aggregate layers to potentially improve pavement performance and longevity.
Table of Contents
|Chapter One - Introduction||3-8|
|Chapter Two - Aggregate Types and Material Selection||9-39|
|Chapter Three - Granular Base and Subbase Construction Practices||40-54|
|Chapter Four - Unbound Aggregate Base Characterization for Design||55-100|
|Chapter Five - Compaction, Quality Control, and Field Performance||101-118|
|Chapter Six - Summary of Current Practice and Effective Practices||119-124|
|Appendix A - Questionnaire||127-141|
|Appendix B - Respondent Information||142-143|
|Appendix C - Survey Responses||144-171|
|Appendix D - Review of Current Resilient Modulus Models||172-175|
|Appendix E - Review of Current Permanent Deformation Models||176-178|
|Appendix F - Follow-up Survey on Resilient Modulus Testing||179-181|
The National Academies Press and the Transportation Research Board have partnered with Copyright Clearance Center to offer a variety of options for reusing our content. You may request permission to:
For most Academic and Educational uses no royalties will be charged although you are required to obtain a license and comply with the license terms and conditions.
For information on how to request permission to translate our work and for any other rights related query please click here.
For questions about using the Copyright.com service, please contact:
Copyright Clearance Center
22 Rosewood Drive
Danvers, MA 01923
Tel (toll free): 855/239-3415 (select option 1)
Loading stats for Practices for Unbound Aggregate Pavement Layers...