High Performance Building

Dow Performance Silicones DOT Finds Cost-Effective Solution to Water Damage with Dow and Silicone Specialties Inc.

Case Study: I-70 in Glenwood Canyon

City and Country Glenwood Canyon, Colorado, USA Products* • DOWSIL™ 902 RCS Joint Sealant • X.J.S. Expansion Joint System Key Participants • Colorado Department of Transportation (Denver, Colorado) • G.A. Western Construction Co. (Palisade, Colorado) • Silicone Specialties Inc. (SSI) (Tulsa, Oklahoma) • Dow (Midland, Michigan)

*Prior to February 2018, products listed were branded as Dow Corning.

The bridge joints along I-70 in Glenwood Canyon are subject to high traffic loads and extreme temperature changes.

seal joints, which typically begin to fail I-70 in Glenwood Canyon. It wanted a Dow’s rapid cure silicone helped Colorado after only a few years. This leads to water cost-effective, easy installation that would highway officials cost effectively protect its leaks and accumulation of de-icing salts prevent water from entering the joint and bridges in Glenwood Canyon while keeping and debris, which can rust or corrode the not require long road closure times. the road closure time to a minimum. substructure components, columns and piers of a bridge or elevated roadway. Dow and SSI Joint System Bridges and elevated sections of highway Replacing these seals can be an expensive Provides Solution have to perform in extreme conditions. and laborious process, especially when CDOT turned to Silicone Specialties, Inc. Handling changing weather conditions the likelihood that the new seals will fail (SSI), a nosing material manufacturer and and high traffic loads means fixed and again and require another replacement Dow Sealant Distributor, and Dow to learn expansion joints need to allow for is considered. more about the benefits of structure fluctuations, while being sealed the X.J.S. Expansion Joint to protect structure integrity. The Colorado Department of Transportation (CDOT) was looking for a better solution System, which combines Most bridges built after the late 1960s when it needed to reseal the joints along the tough, wear-resistance use preformed rubber compression to of SSI’s Silspec 900 Polymer

C A S E S T U DY | United States of America Nosing System (PNS) with the rapid-curing, The X.J.S. system has been in use since high movement capability of DOWSIL™ the early 1990s throughout the United 902 RCS Joint Sealant. States in a wide variety of climates and configurations, proving their versatility. “There was a rubber seal in place when “Some of the joints are up to five years old we began the project,” said Joe Kelly of and as of January 2008 have performed G.A. Western Construction. “We removed well in the harsh conditions experienced the rubber, replaced it with an epoxy and on this stretch of I-70,” reported then applied the X.J.S. system to the two- CDOT’s French. inch expansion joint. So far the project has done an excellent job of solving The product has been used successfully CDOT’s perennial problem with faulty by DOTs and transportations authorities two-inch joints.” throughout the United States. The X.J.S. system enhances joint “We will definitely be working with the performance without complicated product on current and future projects,” installation or extensive road closures. said Kelly of G.A. Western Construction The X.J.S. joint seals gave CDOT a cost- “The X.J.S. system has provided a relatively effective, easy installation that is simple solution for joint replacement Contact Us performing well. and repair,” said Delmon French of the Dow is collaborating with industry Colorado Department of Transportation. professionals around the world to develop Road closures are a particular concern solutions to improve the energy efficiency in remote areas, like Glenwood Canyon, of buildings for a more comfortable where alternate routes are not available. environment. Learn more about Dow’s “We worked closely with CDOT’s bridge full range of High Performance Building engineers to find ways to complete solutions by visiting us online at needed repairs with minimal impact on consumer.dow.com/construction. the traveling public,” noted Dale Baker Dow has sales offices, manufacturing sites of SSI Highway Products Sales. “The X.J.S. and science and technology laboratories Joint System gave CDOT a flexible solution around the globe. Find local contact in terms of joint configuration and traffic information at consumer.dow.com/ accommodation when repairing bridge ContactUs. expansion joints in Glenwood Canyon.”

Images: dow_8658420611, dow_40268349568, dow_40268348757

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