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American Association of State and Highway Transportation Officials, 2020
Publisher: AASHTO
File Format: PDF
$39.00$78.00
Pages:10
File Size:1 file , 2.3 MB
Note:This product is unavailable in Ukraine, Russia, Belarus
AASHTO PP 98-20 (2021) specifies the equipment and software requirements for a dielectric profiling system (DPS). Calibration and verification procedures are also detailed. A DPS uses ground penetrating radar (GPR) technology to continuously measure asphalt compaction quality up to highway speeds. The DPS system reports the asphalt surface dielectric constant which is strongly correlated to asphalt air void content (FHWA/TX-92/1233-1). As the dielectric constant increases, air void content decreases.
Standard Practice for Technician Training and Certification Programs
$44.00 $89.00
Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete (ASTM Designation: C490/C490M-17)
$39.00 $78.00
Standard Specification for Porous Concrete Pipe (ASTM Designation C 654M-05a and C 654-05)
$27.00 $54.00
Standard Specification for Concrete Drain Tile (ASTM Designation C 412M-15 and C 412-15)
$30.00 $61.00
