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American Association of State and Highway Transportation Officials, 2017
Publisher: AASHTO
File Format: PDF
$39.00$78.00
Pages:9
File Size:1 file , 1.4 MB
Note:This product is unavailable in Ukraine, Russia, Belarus
This method covers the measurement of the oxidation signal in an asphalt mixture by a portable infrared spectrometer (PIRS) equipped with a diffuse reflectance accessory. Three oxidation signals are compared: (1) the in-place pavement, (2) asphalt mixture production sample, and (3) the approved job mixture formula specimen. The oxidation signals are determined from a specified peak value from the absorbance spectrum of the asphalt samples.
The in-place pavement PIRS oxidation signal can be used to assess its aging rate. The pavement aging rate is determined by comparing its initial PIRS oxidation signal with successive PIRS oxidation signals obtained at some defined frequency.
Standard Method of Test for Evaluation of Oxidation Level of Asphalt Mixtures by a Portable Infrared Spectrometer
$39.00 $78.00
Standard Method of Test for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency (ASTM Designation: C305-20)
$32.00 $65.00
Standard Method of Test for Determining In-Place Density and Moisture Content of Soil and Soil-Aggregate Using Complex Impedance Methodology
$43.00 $86.00
Standard Method of Test for Fineness of Hydraulic Cement by Air Permeability Apparatus (ASTM Designation: C204-18ε1)
$36.00 $73.00
Standard Method of Test for Specific Gravity or API Gravity of Liquid Asphalts by Hydrometer Method (ASTM Designation: D3142/D3142M-11)
