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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 Zinc-Coated Steel Wire Rope and Fittings for Highway Guardrail (ASTM A741-98)
$22.00 $44.00
Standard Method of Test for Determining the Asphalt Binder Content of Hot-Mix Asphalt (HMA) by the Ignition Method
$60.00 $120.00
Standard Method of Test for Water Content of Freshly Mixed Concrete Using Microwave Oven Drying
$26.00 $52.00
Standard Method of Test for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine (ASTM Designation: C131-01)
$126.00 $252.86
