G12-503146/FWD

SINGLE SIDE LOCKED WHEEL FRICTION TESTER WITH GPS

Shall meet the build and accuracy requirements as specified in AASHTO T242-18(2022), “Standard Method of Test for Frictional Properties of Paved Surfaces using a Full-Scale Tire”

Including:

Braking System
Wheel Load
Tire and Rim
Force and torque transducers and resistors
Vehicle speed transducers
Signal conditioning Wetting nozzle design and positioning
GPS

COMPLIANCE WITH INDUSTRY STANDARDS
AASHTO T242-18(2022) Standard Method of Test for Frictional Properties of Paved Surfaces Using a Full-Scale Tire
AASHTO M261-22 Standard Specification for Rib-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests
AASHTO M286-22 Standard Specification for Smooth-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests
AASHTO T282M/T282-24 Standard Method of Test for Calibrating a Wheel Force or Torque Transducer Using a Calibration Platform (User Level)

SYSTEM HARDWARE AND SOFTWARE FEATURES
Two-axis transducer provides direct measurement of both horizontal traction force and vertical load on the test wheels Trailer equipped with a parallelogram suspension, non-resonant combination of coil springs with heavy duty air shocks and disc brakes
Solid state electronics and instrumentation
Simple trim system calibration
Full system diagnostics of transducers, encoders, brakes, and water system
Test headers: friction numbers, peak friction values can be printed and/or stored
On-board computer calculates Friction Number (FN) and displays friction vs. time graph in real time
GPS should have centimeter accuracy without external correction (Trimble BX992 or equivalent)
300 to 350-gallon water tank

OTHER ITEMS
ALDOT will provide a Ford F-350 Dual Rear Wheel 4X4 tow vehicle with camper shell.
Manufacturer shall provide a one-year warranty covering parts and labor for test vehicle after delivery to ALDOT including, but not limited to, frame, transducer, wheel encoder, braking system, and data processing unit.
ALDOT will transport system to the Transportation Research Center for certification after delivery. Vehicle must pass certification.

NO SUBSTITUTE!
Vendor must upload quote into the Alabama Buys System. Vendor must be tax-exempt and must include shipping to 3704 Fairground Rd., Montgomery, AL  36110.