Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories (2020) / Chapter Skim
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3 Introduction This chapter introduces background information on practices related to the fabrication of asphalt-mixture specimens for performance testing. The survey and interview processes and organization of the report will also be described.
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4 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories reference to transportation agencies and other entities regarding existing practices for fabrication of performance test specimens. Study Approach A multifaceted approach was taken to document the various activities that have been conducted in recent years by both agencies and partner lab entities with respect to specimen fabrication for asphalt performance testing and related procedures.
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Introduction 5 completed the agency survey, along with specific agencies that were selected to serve as case examples, to be presented in Chapter 4 of this report. Survey of Partner Laboratories The partner laboratory survey consisted of 25 questions (included in Appendix A)
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6 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories At least one representative from each of the organizations was interviewed over the phone to gather their input on issues and practices in their state or province related to practices for fabricating asphalt performance test specimens. A sampling of documents obtained as examples of current practice are included in Appendix E
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Introduction 7 state of the practice in terms of the use of asphalt laboratory performance tests and in regard to which performance tests are conducted and for what purpose [mix design approval, quality assurance (QA) , research]
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8 Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories mixtures to determine a fundamental engineering or empirical property (e.g., resilient modulus, creep properties, and cracking properties) that can predict pavement performance and/or appear in primary performance-prediction relationships.
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