Impact of Connection between Specimen and Load Plate on Viscoelastic Material Response of Hot Mix Asphalt

Cyclic compression tests (CCT) on hot mix asphalt (HMA) can be employed for determining the linear viscoelastic (LVE) material response. This paper investigates whether CCTs produce comparable results in terms of LVE material reaction. Test data evaluation is carried out by means of regression analysis with a standard sine and an advanced function containing the first harmonic oscillation term. From the findings it can be concluded that CCTs produce results that are comparable to results of the 4-point-bending (4PBB) tests. It is shown that the advanced regression analysis can be employed to analyze the response quality of the test machine.