NIST Civil Infrastructure Showcase 3-14-14 Gaithersburg, MD Development of High-Toughness, Low- Viscosity Resin for Reinforcing Pothole Patching Materials BruinPatch, Inc. A UCLA Startup for Improving National Infrastructure Larry Carlson UCLA Institute for Technology Advancement President, Bruinpatch, Inc.
[email protected] (818) 970-5532 Engineering Institute for Technology Advancement Product Product: A long lasting pothole repair method that utilizes a low viscosity resin, a patented catalyst and UCLA’s patented approach Integrated Dual Phase Approach Porous asphalt with Top Phase: infiltrated DCPD layer • Moisture resistant • High toughness Interface • Durable, rutting resistant Densely compacted Bottom Phase: asphalt layer • Compacted standard materials • Low Cost Cross-section DCPD Resin Curing Schematic illustration of aggregate-asphalt mix Ring-opening Metathesis Polymerization infiltrated with DCPD and formed a hardened continuous network within • Capable of infiltrating into the voids, and Reduction of continuous and interconnected voids • Reinforce the continuous phase of the aggregate composites Curing Profile cold mix 160 'C Interface of cold mix and D2 mix 120 D2 160 'C 1.5 min 100 4 min 80 60 Surface of cold mix Temperature 'C 40 Resin added 20 0 2 4 6 8 10 12 Time Minute Curing profiles were recorded by measuring temperature profile on the surface and at the interface of the porous mix and dense mix. Catalyst Development 180 160 180 C831 0 TPP 140 C831 160 -20'C to RT C727 0.03% TPP -11'C -3'C 140 120 0 TPP -5'C 120