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 />
Emulsion Residue Properties<br />
Need for Rheology-Based Specs.<br />
• Modulus/Viscosity – DSR<br />
• Stiffness/m-value – BBR<br />
• Failure stress/strain – DTT<br />
Need for chemical/physical<br />
controls for Rejuvenator Base Oils<br />
• Current specs use Rostler<br />
• Need performance-based standards<br />
Not enough testing in this<br />
study for any conclusions<br />
While there is probably an ideal emulsion viscosity for adequate film thickness and<br />
infiltration into a pavement, the surface tension of the emulsion is a better indicator<br />
of the ability of the emulsion to infiltrate the surface. Because this testing was<br />
initiated very late in the study, there was insufficient data collected to reach<br />
definitive conclusions about optimal surface tension. Similarly, the particle size of<br />
the emulsion should equate with its ability to enter small pores in the pavement<br />
surface. Emulsified rejuvenator oil particles should be easier to deform and enter<br />
pores than higher viscosity asphalt droplets. However, only limited particle size<br />
data was collected for this study.<br />
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