Spray Applied Polymer Surface Seals - TSP2
Spray Applied Polymer Surface Seals - TSP2
Spray Applied Polymer Surface Seals - TSP2
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Lessons Learned<br />
Fog Seal<br />
Binder Properties<br />
Binder Extraction<br />
• Toluene/95% Ethanol<br />
Binder Rheology<br />
• DSR; G*, phase angle, MSCR<br />
• BBR: S, “m-value”, physical hardening<br />
Binder Chemistry<br />
• Infrared spectroscopy (IR) - carbonyl<br />
• Nuclear magnetic resonance (NMR) - branching<br />
• Differential scanning calorimetry (DSC)– wax<br />
• Elemental analysis – chemical fingerprint<br />
• HPLC - EH&S issues<br />
• Rostler, Corbett, asphaltenes<br />
Test results: characterizations did not relate much to performance<br />
The Western Research Institute ran several chemical analyses on products used for<br />
the initial trials. From the field trial results, physical performance testing of mix<br />
properties appears to give more reliable information regarding rejuvenator<br />
effectiveness than the chemical or physical testing of extracted binders.<br />
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