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The National Academies

NCHRP Synthesis 20-05/Topic 50-14 [Final (Synthesis)]

Practices for Fabrication Asphalt Specimens for Testing in Laboratories
[ NCHRP 20-05 (Synthesis of Information Related to Highway Practices) ]

  Project Data
Funds: $45,000
Authorization to Begin Work: 5/1/2018 -- estimated
Staff Responsibility: Jo Allen Gause
Research Agency: University of New Hampshire
Principal Investigator: Jo Sias
Effective Date: 10/30/2018
Completion Date: 6/22/2020
Fiscal Year: 2018

Performance testing of asphalt mixtures is becoming more widespread for a variety of reasons and with a variety of testing devices. The tests results are sensitive to the procedures used in preparation of the specimens. Guidelines exist for conducting the tests; however, they do not all provide uniform or comprehensive direction for fabricating test specimens.

The TRB National Cooperative Highway Research Program's
NCHRP Synthesis 552: Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories documents procedures related to laboratory fabrication of asphalt performance test specimens at state departments of transportation (DOTs) and at partner laboratories that conduct performance testing on behalf of DOTs.

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