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 -5'C 100 C627 80 -20'C 100 80 60

Temperature ('C) 60 40 Temperature ('C) 20 40 0 20 -20 0 -20 -40 -40 0 10 20 30 40 50 Time (Minutes) 0 10 20 30 40 50 Time (Minutes) New catalysts C727, C627, C831 with inhibitor A, formulated for cold weather application

220 Catalysts for High Temp 200 200 60K: 1 30K:1, 180 C827-7 mg JHP 180 160 control C796 C827 160 C771 ) 140 C827-14 mg JHP

C749 'C 140 ( 120 120

C771 100 100 C749 80 Temperature 'C

80 Temperature C796 60 60 40 40 C827-21 mg JHP 20 20 0 -5 0 5 10 15 20 25 30 35 -50 0 50 100 150 200 250 300 350 Time (Minutes) Time (minutes) New catalysts C771 and C749 with inhibitor B, formulated for hot weather application

The selection of catalysts and inhibitors for different locations and seasonal requirements Example: Infiltration Profile with C827 Catalyst

The resin wrapped the hot mix from the top surface and two sides, with deeper penetration along the edges. Proof of Concept

TENSILE STRENGTH RUTTING RESISTANCE 0.0 3.0x103 6.0x103 9.0x103 1.2x104 1.5x104 5000 -1 -1 4X IMPROVEMENT Asphalt w/ pDCPD 4000 -2 -2

-3 -3 3000 Asphalt w/ pDCPD -4 -4

2000 -5 -5 Load (bts)

-6 -6 1000 Asphalt RuttingCPN Depth (mm) -7 -7 0 Asphalt -8 -8 3 3 3 4 4 0.0 0.1 0.2 0.3 0.0 3.0x10 6.0x10 9.0x10 1.2x10 1.5x10 CPN Rutting Cycles Displacement (inch)

RESULT: Stronger and longer life Edge Bonding Improvement

Fully compacted HMA-DCPD 250

200

150

100

HMA-Tar HMA only Indirect Tensile Strength (psi) 50

0

Indirect tensile test for interface bonding Indirect tensile strength

HMA (Hot Mix Asphalt) only HMA-Tar HMA-DCPD

The resin strongly reinforced the interface bond between the repair materials and the road, compared with standard hot-mix asphalt and t a r. Deployment Equipment

Resin dispensing system for pothole repair, can mounted on Dispensing wand with mixing head flatbed, pickup or dump truck for easy deployment and cleaning Competitive Advantage

Cold-Mix Material Curing Shelf Est. Fix Unit Price Per Yearly Time Life Lifespan Size Pothole Pothole (min) (yr) (yr) Cost

Standard Asphalt 3 days 15 Days 0.25 2200lb $2.01 $8.02

DuraPave <60 1 1 60lb $28.40 $28.40

EZ Street <60 1 1 50lb $9.13 $9.13

Instant Road Repair <60 1 1 50lb $15.72 $15.72

Perma-Patch <60 >1 1 60lb $10.99 $10.99

QPR-2000 <60 1 1 50lb $5.48 $5.48

UPM <60 1 1 50lb $12.7 $12.7

BruinPatch, Inc. <20 >2 4 2lb $16.07 $4.01 Company Status: BruinPatch, Inc.

• Company Formation − Incorporated 6/5/13 as S-Corp − Initial capitalization from five BruinPatch founders

• Intellectual Property − UCLA holds exclusive rights to use catalyst for pothole applications − UCLA filed application patents in the US and China for Pothole Repair − Materia, Inc. holds a patent on the catalyst used in the end-solution

• Ongoing Investment discussions

• 5 Year Projected IRR is 29%

Development and Funding

• Undergoing field trials • Currently in US • Potential expansion to China and Taiwan

• NIST sponsored $3.1 million, cost-shared development • Established basic technology over a wide range of conditions • Key to retiring product and deployment risk • Partnered with City of LA (GSD) for testing, and Materia, Inc. as supplier • Patents pending in US and China

• Technology expansion: • Quick structures for ballistic and blast protection with on-site materials (Partner: Sully Power, funding: US Army) • Smart roads and sidewalks with load-sensing capability (Partners: Group HI, BSG; funding: pending with several agencies) • Resin infusion concept is expandable to concrete surfacing/ protection

Summary

BruinPatch, Inc.

 Meets a major unsatisfied need in improving national and municipal infrastructure

 Saves customers millions in not continually replacing potholes

 Helps environment by reducing materials, trucks, and processing on roads

We are seeking investors who want to be a part of improving our infrastructure Acknowledgement

This work is supported by Technology Innovation Program (TIP), National Institute of Standards and Technology (NIST), Award Number: 70NANB10H019, We’d also like to thank Nelson Gibson and Gang Zhang at the Turner- Fairbank Highway Research Center for the CT inspection.