GlasGrid mesh, introduced in 1989, was developed to address the challenges of pavement cracking on highways, roads, runways and parking areas. The product is a stiff fiberglass material, coated with an elastomeric polymer that reinforces asphalt concrete overlays. GlasGrid dissipates stress concentrated in the asphalt layer to reduce reflective cracking caused by traffic loads, age hardening and temperature fluctuations.
GlasGrid products will be marketed with Tensar Biaxial (BX) Geogrids, the key component of TET’s Spectra Roadway Improvement System, used to stabilize subgrade layers and reinforce base course layers.
Invention said to revolutionize polymer industry
Blacklidge Emulsions Inc. has completed a License Agreement with PRIME Plex LLC, an affiliate of Ecostar Science and Technology (Lockheed Missiles & Space Company spin-off), to build polymer handling facilities throughout the Southeastern United States to integrate a new polymer composite of “worldwide significance,” says the company.
The new invention, P2GTR, uses recycled tires ground up to a 30 mesh size particle (about the size of a small grain of sand) as the base material. The process uses an electro magnetic reactor and water to disintegrate the ground tire rubber into a nano size devulcanized polymer composite made up of Styrene Butadiene Rubber (SBR), Styrene Butadiene Styrene (SBS), and other tire components.
The process allows the polymer to retain elastomeric and durability characteristics that are present in tires. Until now, these characteristics have not been able to be retained in other tire recycling or devulcanizing methods.
Over 50 billion pounds of virgin polymers are used per year worldwide, primarily in roads, roofing, car parts and new tires. The new recycled composite P2GTR may be cross linked to accommodate any of these industrial uses at a considerable cost savings.
Tests have revealed performance of the P2GTR composite can perform better than that of the original manufactured polymer due to specialized crosslink technology used to alter and finalize characteristics of the polymer composite for specific uses.
Manufacturers of asphalts such as Marathon, Citgo, Valero, and Calumet are enthused about the new polymer composite invention that will allow the use of the recycled elastomeric polymer to be used in roads and roofs which may lead to near perpetual roads and roofs, sooner than anticipated due to the endless supply of scrap tires in landfills, performance of the polymers, and economics of the process.
The first polymer blending facility will be placed in South Mississippi and is expected to asphalt react up to 80,000 pounds of polymer composite daily and is targeted to be online the first quarter of 2006. Other tentative polymer blending sites scheduled for 2006 are Tampa, FL, Corpus Christi, TX, and Greensboro, NC, where Blacklidge already has existing or planned plants that modify asphalt base products.
Ritalka Inc. was recently recognized as Southwest Minnesota Entrepreneurial Business of the Year. The award was presented to Kevin Wald for outstanding accomplishments as the president of engineering and manufacturing firm, SpecSys Inc.
Southwest Minnesota Workforce Council and the Minnesota Department of Employment and Economic Development recognized Wald and the employees of SpecSys Inc. for the company’s achievements in “willingness to assume risk, success in innovation, response to adversity, and community involvement.”