Aggregate Quality Requirements for Pavements (2018) / Chapter Skim
Currently Skimming:
Pages 3-7
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 3... ...
3 1.1 Introduction and Background Aggregates constitute 70% to 100% by weight of all bound and unbound pavement layers in road applications and, accordingly, their types and properties significantly affect the end performance. This synthesis topic addresses the need to organize and compress available information related to different aggregate approval procedures and testing methods for construction of pavement layers.
|
From page 4... ...
4 Aggregate Quality Requirements for Pavements granular layers are constructed in both rigid and flexible pavements for primarily drainage and frost protection purposes. Unbound aggregate base/subbase layers used in rigid pavement structures primarily provide uniform support conditions to the concrete slabs; the structural contribution of such layers is often not the primary design aspect.
|
From page 5... ...
Introduction 5 different aspects of aggregate quality requirements to satisfy desired pavement performance. The survey questionnaire had separate parts relevant to different aggregate quality requirements and approval procedures.
|
From page 6... ...
6 Aggregate Quality Requirements for Pavements quality perspectives are reviewed. Moreover, material sampling and laboratory testing procedures adopted by agencies, aggregate geology and mineralogy assessment, project acceptance criteria and performance requirements, prequalification, disqualification, and requalification techniques are included.
|
From page 7... ...
Introduction 7 aggregate sources are also discussed by presenting performance metrics and case histories from previous and ongoing projects. Chapter 6 includes the conclusion and suggestions for future research, as well as knowledge gaps.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.