Index-Based Tests for Performance Engineered Mixture Designs for Asphalt Pavements
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Authors
Hajj, Elie Y.
Hand, Adam J. T.
Chkaiban, Rami
Aschenbrener, Timothy B.
Issue Date
2019-12
Type
Technical Report
Language
en_US
Keywords
Asphalt mixture , PEMD , performance test , pavement , stability , rutting , durability , cracking , moisture damage , stripping , WRSC
Alternative Title
Abstract
There is a widespread recognition and desire need by agencies and asphalt paving industry to use performance
testing to complement volumetric properties and help ensure satisfactory asphalt pavement performance.
Accordingly, there has been several initiatives throughout the nation to develop Performance Engineered
Mixture Design (PEMD) processes for asphalt pavements. This informational brief provides practitioners with
information about index-based performance tests that can be implemented within a PEMD process to help
improve performance and prolong service life of asphalt pavements. It is aimed to serve as a general overview
and to provide context for PEMD process and how it fits into the big picture.
A five-step procedure guideline is presented in this document for the selection and incorporation of performance
tests in an index-based PEMD process for asphalt mixture design and acceptance. Seven evaluation factors and
associated hierarchical levels are identified and presented as part of an approach for screening and assessing the
overall appropriateness of specific performance tests for use in an index-based PEMD process. The approach is
demonstrated on selected performance tests using illustrative examples and following certain assumptions. State
highway agencies (SHAs) and contractors can make use of the suggested five-step procedure guideline
presented in this informational brief for their own selection of performance tests, depending on their specific
needs, goals, capabilities, and resources, as part of an index-based PEMD process.
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In Copyright (All Rights Reserved)