Enhanced Capabilities of the Illinois Accelerated Pavement Tester

Renshaw, Greg; Al-Qadi, Imad L.; Kohler, Erwin R

doi:10.36501/0197-9191/24-020

i

Enhanced Capabilities of the Illinois Accelerated Pavement Tester

2024-08-01
By Renshaw, Greg ; Al-Qadi, Imad L. ; Kohler, Erwin R

File Language:

English

Details

Creators:

Renshaw, Greg ; Al-Qadi, Imad L. ; Kohler, Erwin R
Corporate Creators:

Illinois Center for Transportation ; University of Illinois at Urbana-Champaign
Corporate Contributors:

Illinois Department of Transportation. Bureau of Research ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Accelerated Loading Accelerated Tests Airport Pavements Airport Runways Breaking Loads Highway Pavements Pavements Temperature Control Accelerated Pavement Testing
Publication/ Report Number:

FHWA-ICT-24-017;ICT-24-020;UILU-2024-2020
DOI:

https://doi.org/10.36501/0197-9191/24-020
Resource Type:

Tech Report
Geographical Coverage:

Illinois;United States
Edition:

Final Report 8/1/20–08/31/24
Corporate Publisher:

Illinois Center for Transportation
Abstract:

After being in service for nearly 20 years, the Illinois Accelerated Pavement Tester (I-APT) was upgraded to provide enhanced capabilities for accelerated pavement testing. In addition to a new control system, the improvement included a newly designed load carriage, which allows for testing with a tandem half-axle, axle yaw, and shear loading (breaking and accelerating). The new I-APT design could be fitted with various tire configurations (e.g., single, dual, wide-base, and aircraft). In addition, a tandem axle can be used that has the ability to vary axle spacing between 37 and 68 in. and wander tracking up to 18 in. Loading at a yaw angle of up to 6 degrees will now be possible, simulating lateral force, along shear force simulating skidding on pavement, which requires torque variations. Other improvements include the following: i) replacing the original electrically activated winch with a hydraulic power system, which will minimize electrical noise interferences with sensor signals; ii) advanced computing system file management using LabView codes; and iii) a new control trailer to operate the device.
Format:

PDF
Funding:

R27-ALS
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:31faf2a3eba5934b4f5d3177cd283260d572c86bf30cbd51018805408cf156b74d60f1fa3d12b75b887ede47ea94af0684790a9ccab22e6057afd67e553a0953
Download URL:

https://rosap.ntl.bts.gov/view/dot/76985/dot_76985_DS1.pdf
File Type:

[PDF - 5.13 MB ]

File Language:

English

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