The Strategic
Highway Research Program (SHRP) was a $50-million research effort
that led to the development of performance-based tests and prediction
models for the design of asphaltic paving mixtures. However, there
are many obstacles standing in the path of full implementation
of the new methodologies, particularly the cost and complexity
of the new test devices. A hollow-cylinder tensile test device
is being developed to serve as a low-cost, easy-to-operate device
for the control of low-temperature cracking of asphalt pavements.
Viscoelastic and fracture-related properties of standard laboratory
cylinders will be determined at low and intermediate temperatures
using the new device. |