ERI KUAB 10-20-2010
ERI used a KUAB HWD testing vehicle at the Round-Up. The following outlines many of the vehicle parameters during the testing of the Round-Up pavement. The plate is a 4-segmented plate with a radius of 5.91 inches. The drop sequence followed the recommended testing load levels for a FWD vehicle with a slight change to the highest load level. A seating drop of 17191 lbs was followed by 9k, 12k, and 17191 lbs test drops. It should be noted that by setting the highest load level to 17191 lbs most drops provided loads in the low 16000 lbs range. Data from the seating drop was collected along with the test drops. The ERI KUAB has 9 sensors measuring deflections. 1 sensor is positioned at the center of the plate with 6 other sensors positioned behind the plate at 12" spacing. The two remaining sensors are also positioned behind the plate at 8" and 18". The vehicle is operator by a driver in the truck cabin and a spotter outside the vehicle for positioning of the plate.
Testing of Cycle 1 and Cycle 2 with the ERI KUAB was performed on 10-20-2010. Instrumentation embedded within the pavement also acquired data during testing. The KUAB deflection data was collected as a single .fwd file readable in Notepad. The .fwd file was converted into a .pddx file after testing using a separate conversion program. Both file formats are available for download.