…”Every year, companies that own railroad track across the United States spend millions of dollars maintaining ballast, the crushed rock underneath railroad ties and steel rails. In addition to the high cost, railroads must reroute trains around operations that maintain ballast, delaying the delivery of freight.
“A track reinforced with triaxial geogrid, a mesh material with triangular openings, is used to reinforce the ballast and trap the larger rocks in a layer that could prevent fouling by dust and small particles.”
Please visit this link to read the entire article: http://www.physorg.com/news/2011-11-boost-durability-railroad-tracks.html


