Fundamental Properties of Asphalts and Modified Asphalts, III
Fundamental Properties of Asphalts and Modified Asphalts, III
Fundamental Properties of Asphalts and Modified Asphalts, III
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(a)<br />
(b)<br />
PA Intensity (arbitray units)<br />
PA Intensity (arbitray units)<br />
7.42<br />
7.0<br />
6.5<br />
6.0<br />
5.5<br />
5.0<br />
4.5<br />
4.0<br />
3.5<br />
3.0<br />
2.5<br />
2.0<br />
1.5<br />
1.0<br />
0.5<br />
0.03<br />
4000.0 3600 3200 2800 2400 2000 1800<br />
cm-1<br />
1600 1400 1200 1000 800 600.0<br />
5.00<br />
4.8<br />
4.6<br />
4.4<br />
4.2<br />
4.0<br />
3.8<br />
3.6<br />
3.4<br />
3.2<br />
3.0<br />
2.8<br />
2.6<br />
2.4<br />
2.2<br />
2.0<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0.03<br />
1800.0 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700.0<br />
cm-1<br />
Figure 2-2.2.5. PA spectra changes on oxidation <strong>of</strong> a thermally thick (1 mm ±) sample <strong>of</strong> AAD-1<br />
(unaged, RTFO, <strong>and</strong> various PAV aging times at 80˚C). (a) Blue: Unaged. Green: RTFO only.<br />
Black: RTFO/PAV 20hours. Brown: RTFO/PAV 144 hours. Pink: RTFO/PAV 240 hours.<br />
Red: RTFO/PAV 480 hours. OPD velocity 0.5 cm/sec, 512 co-added scans, gain (4).<br />
(b) exp<strong>and</strong>ed view - fingerprint region.<br />
24
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