Asphalt Alternative May Offer Cost and Environmental Benefits
Asphalt Alternative May Offer Cost and Environmental Benefits, Pigment Can Be Added for Bicycle Lanes and Other Special Purpose Lanes; Terra Pave Working with University of Texas on Pavement Products Members of the Pflugerville City Council are the latest Texans to put a new asphalt alternative to the test. The city joins Austin and the Texas Department of Transportation (TxDOT) in deciding to experiment with Terra Pave for jobs where asphalt would have been used in the past. Joe Graff, Director of Marketing for Terra Pave, says the Terra Pave products have several qualities that make them better than asphalt. The products are water based and include no volatile organic com- pounds (VOCs). As Graff explains, “Only water is evaporated into the atmosphere, therefore, they are very safe and good for the environment.” In addition, he notes that since the products are placed at ambient temperatures and do not need to be heated, “they save the cost of heating and keeping them hot.” Terra Pave says its products are “much stronger” than asphalt and stay flexible at most temperatures. That allows them to “remain strong and resistant to deformation by both traffic loading and environmental forces such as heat, cold, rain and freezing.” Finally, Graff points out that no special equipment is necessary to apply Terra Pave. It can be placed with conventional paving equipment. Because the polymers used in Terra Pave are clear when they dry, the products can take on the color of any pigment added. Graff says carbon black is added to many of the Terra Pave products to make them look like conventional asphalt pavements and give them good UV light resistance. However, the company expects to develop some material in blue or green in the near future for a test bicycle lane. Earlier this year, Pflugerville voted to go with Terra Pave to save money on the construction of 37 new parking spaces and test its spirit of innovation by taking a risk on what it viewed as a more environmentally friendly product. Austin is currently testing Terra Pave in one of its parking lots, too, and TxDOT applied it last year on SH195. Terra Pave’s products are developed and patented by the Center for Transportation Research at the University of Texas at Austin, and Graff points out “that certainly gives them great credibility.” However, because of the great variety of ways in which asphalt is used, Terra Pave cannot currently be used to replace asphalt in all situations. Graff says more experience will be necessary and additional research on the products still needs to be done. Though the company did not offer specifics on its pricing, it says Terra Pave costs are “very competitive” with asphalt and in many cases less costly. In addition, it expects its prices to remain more stable because costs are not based on the more “volatile” asphalt market. It also anticipates that Terra Pave will last “as long or longer” than asphalt. Graff sees a broad market for Terra Pave. It can be used worldwide on large projects by transportation agencies or small projects by homeowners. The first sections of Terra Pave products were installed about two years ago, and Graff says the reaction to all test sections and installations has been promising. http://www.urban-transportation-monitor.com/ View full article...
Read MoreCity Plans to Use Top-Seal White at Lake Pflugerville
Recently on the City of Pflugerville website, plans were announced for the paving of 37 new parking spaces around Lake Pflugerville. Terra Pave International’s Top-Seal White will be used to cover parking spaces.
Read MoreCity of Austin – Chip Retention – Terra Fog
Background On Thursday, March 6, 2014, Cox Paving Co. performed preventative maintenance on traffic lanes on 1st Street near Slaughter Lane in Austin, Texas with Terra Fog from Terra Pave International. Terra Fog is a special water based eco- friendly polymer compound. Application Area Terra Fog was applied to sections of 1st Street for a distance of about one mile south from the intersection with Slaughter Lane. The road surface was originally covered with a grade #5 chipseal, and substantial amounts of loose aggregate rock from the failing sections of the old seal where visible along the curbs of the street. Loose chips were also visible on the road surface itself, in addition to holes and gashes in the chipseal. Daren Duncan, P. E. City of Austin “We have a test section [of Terra Fog] in the backyard of the Streets and Bridges Department, and we wanted to use that to see how the material held up under heavy equipment and lots of turning movements. And that test section held up pretty well, with all the heavy equipment and turning. The most interesting thing is how quick it set up––about 15 minutes. Also, we were very interested in the tire tracking, because of how hard it is to keep people from driving over and tracking.” Advantages of Terra Fog The advantages of Terra Fog are multi fold: Environmentally Safe – Terra Fog includes no VOC’s and evaporates only water. Surface Strength – Terra Fog will do an excellent job of locking down all of the aggregate and additional aggregate loss is unlikely. Curing Time – When placed with good drying conditions, Terra Fog could be crossed with no tracking in less than 10 minutes and was ready for traffic in approximately an hour. Continued curing will occur for 24-48 hours. Impermeability – The surface is completely impermeable, very effectively shedding water. It will penetrate into pavement cracks and will do an excellent job at sealing minor cracking. Aging – Terra Fog includes carbon black and has excellent ageing characteristics. By sealing air and water out of the asphalt pavement, it will substantially reduce oxidation of the asphalt and extend pavement life. Here is the video of the application. ...
Read MoreCity of Pflugerville Chooses Terra Pave Products
Article by Christina Peña, Austin Community Newspapers Staff: Pflugerville has recently prided itself in cutting the city tax rate for 10 years in a row and with recent construction projects, city staff is showcasing how the city cuts spending while maintaining quality of life. The Pflugerville City Council awarded a construction contract at its Jan. 14 meeting to Terra Pave International, which will construct 37 new parking spaces at Lake Pflugerville. The company specializes in a water-based polymer alternative to asphalt, which saved the city $20,000. The $129,000 project will begin Feb. 3 and is funded by the General Capital Reserve budget. The company, sponsored by the University of Texas, has sold its product to multiple Texas municipalities, including Austin, which is testing the product in a parking lot. The Texas Department of Transportation is also testing the product on a section of state Highway 195 in Florence. Pflugerville Assistant City Manager Trey Fletcher said the lake parking lot was an ideal location for the new product because of the parking lot’s predictable traffic pattern without high traffic or heavy loads. “There’s always a risk in trying something new, but we are working regionally to look at innovative ways to construct,” he said. “The city maintains many parking lots and this provided an opportunity to use a more innovative product in a lower-risk environment.” Pflugerville Engineer Dan Franz learned about the product through a presentation by Terra Pave at a Capital Area Pavement Engineering Council meeting. While the product is still fairly new, he said testing out new developments in engineering is an effective way to save money and stay in-the-know with engineering trends. “It is important to use and explore new products because engineering, development and construction are forever evolving,” he said. “Building methods used today are different than in years past. Private development has been using this type of product for years while government agencies like Pflugerville, TxDOT, Travis County and Austin are exploring its use with samples and test sections.” According to Terra Pave International, the product is non-petroleum-based and eco-friendly by “evaporating only water during the curing process and emitting no volatile organic compounds.” “(It) provides many of the same qualities of asphalt with less material and therefore a lower cost,” Franz said. “The polymer is water-based, which has many environmental benefits, compared to oil-based primers and asphalt.” The product also comes in multiple colors, which could be used by various organizations or schools. But the Lake Pflugerville parking lot will be a traditional black and white to mesh with the current theme in the area. View full article...
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