Fundamental Properties of Asphalts and Modified Asphalts, III

Table 2-2.2.4b. Experiment status matrix for laboratory aged field asphalts.
Sample 1
Solution FTIR
Analysis
(total peak ht.)
PA FTIR
Analysis
(total peak ht.)
23
DSR - G*, 10 rad/s
(Pa)
DSR - δ, 10 rad/s
carbonyl, au 2 carbonyl, au 2 20°C 60°C 20°C 60°C
AZ1-3 Unaged 0.04 0.43
AZ1-3 RTFO only
AZ1-3 100°C 20hrs
0.12 1.12E+07 25076 46.103 75.457
AZ1-3 60°C 96hrs 0.19 1.96E+07 67533 38.522 69.777
AZ1-3 60°C 192hrs 0.22 2.17E+07 77308 37.022 68.479
AZ1-3 60°C 336hrs 0.26 2.73E+07 1.04E+05 34.2 67.606
AZ1-3 60°C 504hrs 0.29 2.71E+07 1.52E+05 33.643 63.44
AZ1-3 80°C 96hrs 0.25 0.64 2.86E+07 90512 34.11 67.19
AZ1-3 80°C 210hrs 0.37 0.85 4.32E+07 2.40E+05 28.27 58.962
AZ1-3 80°C 336hrs 0.47 1.16 5.10E+07 4.84E+05 25.288 51.064
AZ1-3 80°C 504hrs 0.53 1.39 5.85E+07 1.54E+06 21.564 40.257
AZ1-4 Unaged 0.05 0.39
AZ1-4 RTFO only 0.11 1.40E+07 30451 44.626 77.583
AZ1-4 100°C 20hrs
AZ1-4 60°C 96hrs 0.19 2.50E+07 83266 36.66 71.775
AZ1-4 60°C 192hrs 0.23 2.73E+07 92662 35.033 70.424
AZ1-4 60°C 336hrs 0.29 3.49E+07 1.25E+05 32.66 68.536
AZ1-4 60°C 504hrs 0.32 3.78E+07 2.10E+05 30.861 64.494
AZ1-4 80°C 96hrs 0.24 0.79 2.97E+07 86300 34.134 70.153
AZ1-4 80°C 210hrs 0.39 0.88 5.22E+07 3.42E+05 27.01 58.226
AZ1-4 80°C 336hrs 0.49 1.13 5.70E+07 5.44E+05 24.19 53.537
AZ1-4 80°C 504hrs 0.52 1.31 6.60E+07 1.63E+06 20.777 41.164
1 All samples displaying temperatures and times are PAV aged.
2 au = absorption units
FTIR-PA Spectra
Since the strong C-H stretching absorption in the region from 2800 to 3100 cm -1 appeared
truncated below a velocity of 0.5 cm/sec, asphalt PA spectra were collected at an OPD velocity
of 0.5 cm/sec. All PA and liquid-cell spectra are available for review; two are shown here
(figures 2-2.2.5 and 2-2.2.6) for inspection. Functional groups apparent in the unaged and aged
liquid-cell spectra are also apparent in PA spectra as shown in figure 2-2.2.7.