AASHTO

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AcronymDefinition
AASHTOAmerican Association of State Highway and Transportation Officials
AASHTOAssociation of State Highway Transportation Officials
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Fortiflex CP52-35 from Solvay Polymers, Inc., Houston, is similar in melt index (0.35) and density (0.952 g/cc) to standard corrugated-pipe resins but exceeds the new NCTL (notched constant tensile load) ESCR test soon to be required by the American Association of State Highway and Transportation Officials (AASHTO), which regulates highway drainage pipe.
The American Society for Testing and Materials (ASTM) is developing guidelines for rubberized-asphalt use, while the American Association of State Highway and Transportation Officials (AASHTO) has developed a task force for rubber-modified asphalt.
Also, the Transportation Department warned at a meeting of the American Association of State Highway and Transportation Officials that RABA funding, which has been increasing steadily for several years, may begin to slide.
Carlson, president of the American Association of State Highway and Transportation Officials; Barbara Harsha, executive director of the National Association of Governors' Highway Safety Representatives; Larry Emig of the National Society of Professional Engineers; William Wilkins of The Road Information Program (TRIP); Susan Pikrallidas of the American Automobile Association (AAA); and William Fay of the Roadway Safety Foundation.
That requirement runs contrary to existing standards of AASHTO (American Association of State Highway and Transportation Officials), which requires only virgin resin to be used.
FHWA, the Transportation Research Board (TRB), and the American Association of State Highway and Transportation Officials (AASHTO) sponsored the tour.
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