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American Association of State and Highway Transportation Officials, 2009
Publisher: AASHTO
File Format: PDF
$26.00$52.00
Pages:4
File Size:1 file , 1.5 MB
Note:This product is unavailable in Ukraine, Russia, Belarus
This qualitative test method can be used to identify the presence of polyphosphoric acid (PPA) in asphalt binder or residue. If PPA is present in the binder, a blue color is developed in approximately 5 min. The test method is not quantitative, but it can detect PPA at concentrations as low as 0.1 percent. The test method can only determine the presence of phosphorus. It is not specific for the presence of PPA. A positive test result assumes that the phosphorus is from PPA. Any additive that contains phosphorus will give a false positive for the presence of PPA.
Standard Specification for Metallic-Coated (Carbon) Steel Barbed Wire (ASTM Designation: A121-19)
$36.00 $73.00
Standard Method of Test for Float Test for Bituminous Materials (ASTM Designation: D139-16)
$135.00 $270.38
Standard Practice for Design Considerations When Using Reclaimed Asphalt Shingles (RAS) in Asphalt Mixtures
$43.00 $86.00
Standard Method of Test for Determination of Asphalt Binder Resistance to Ductile Failure Using Double-Edge-Notched Tension (DENT) Test
