Asphalt Pavement Analyzer Junior (APA JR)
APA Jr. is a two-wheel multi-functional Loaded Wheel Tester (LWT) used for evaluating permanent deformation (rutting), fatigue cracking and moisture susceptibility of both hot mix and cold mix. The APA Jr can be used as a Design or Quality Control Tool. The APA Jr. meets the provisions of the APA Jr. Rut Test, AASHTO- 340-23, and Hamburg Wheel Tracking Test AASHTO 324-23
Tester (LWT) used for evaluating permanent deformation (rutting), fatigue cracking and moisture susceptibility of both hot mix and cold mix. The APA Jr can be used as a Design or Quality Control Tool. The APA Jr. meets the provisions of the APA Jr. Rut Test, AASHTO- 340-10 and Hamburg Wheel Tracking Test AASHTO 324-22
The APA Jr. can test mixes at multiple speeds and multiple rates of loading and has a “High Pressure Feature” that allows a user to perform rut testing at high contact pressures for mixes that are used on Federal Aviation Administration (FAA) P401, etc. airport runways/taxiways.
The APA Jr. can also be equipped with a Chiller that will allow a user to perform Low Temperature Fatigue Testing on Beam Specimens and Low Temperature Studded Wheel Testing on Cylindrical Specimens.
In addition, the APA Jr can also be equipped to Perform Microsurfacing/Slurry Seal Testing (ISSA T147 and T109).
Purwheel Testing utilizing solid rubber wheels and pneumatic wheels can also be performed with the APA Jr for Airport and Highway Applications.
The APA Jr can also be used to perform Friction Testing on Asphalt Samples. The APA Jr is operated utilizing a PLC PC Based Control System.
The operating system allows a user to perform all calibrations and functions directly with a Laptop Computer.
Documents/Test Methods
- APA Junior Brochure with Specifications
- AASHTO T340-23-Determining Rutting Susceptibility of Hot Mix Asphalt (HMA) Using the Asphalt Pavement Analyzer (APA)
- AASHTO T324-23-Standard Method of Test for Hamburg Wheel Track Testing of Compacted Asphalt Mixture
- Asphalt Pavement Analyzer Used to Assess Rutting Susceptibility of Hot-Mix Asphalt Designed for High Tire Pressure Aircraft-FAA/P401, Etc.
- Characterizing Fatigue Behavior of Asphalt Mixtures Utilizing Loaded Wheel Tester
- Twenty-Five Years of Rubber Tire Wheel Tracking of Asphalt Pavements in a Laboratory
- NCAT Report-Performance Testing For Hot Mix Asphalt
- NCHRP Report 508: Accelerated Laboratory Rutting Tests: Evaluation of the Asphalt Pavement Analyzer
- A Ruggedness Study for the Asphalt Pavement Analyzer Rutting Test
- Test Method T147 and T109-Slurry Seal/Microsurfacing Testing
- PUR Wheel Test Method for Highway and Airfield Test Protocols
- Pavement Evaluation Summary