composite railroad cross ties

plastic composite materials. thousands of plastic crossties are currently in service in a wide variety of railroad applications. several researchers have been studying and testing these new materials, specifically high-density polyethylene, however, their behavior when subjected to rail loading is not yet fully .

composite crossties for rail applications, has opened a new 50,000-ft² (4,645m²) production plant in houston, texas. the new facility complements the company's flagship manufacturing facility in nearby marshall. tietek expects the facility to increase the production of its composite crossties by 50 .

plastic railroad ties meet or exceed all of the technical specifications recommended by the american railway engineers maintenance-of-way association (arema) committee 30 for composite cross ties.

composite railroad crossties. u.s. railroads replace about 15 million wood crossties each year, and increasing wheel loads are accelerating this deterioration every year. environmental restrictions on .

railroad crossties in service in the u.s. alone, 15 million require renewal or replacement every year. in a study sponsored by the federal railroad administration (fra), researchers at west virginia university (morgantown, w.va., u.s.a.) investigated the benefits of wrapping creosote-treated.

rail systems around the world signal a potential boon for composites. article post: 1/21/2009. vicki mcconnell. cta el. in the el loop: the chicago transit authority has installed composite cross-ties in its historic commuter rail system's elevated track, including some of its .

ties are made of extremely tough, cross-linked plastic materials that none of our competitors are equipped to handle. because there is no competition for this superior product, our initial cost is lower than other railroad tie manufacturers. therefore, our customers get a superior product at a lower price than our .

composite crossties. richard lampo. us army . when railroads first developed in u.s., had. abundance of . composite rr ties. mid-1990's realizing the need for a reinforced. product, two independent groups began developing. composite ties based on glass-fiber reinforced. high-density .

composite ties. research needs are listed relative to the further understanding of the long-term performance and safety issues associated with their use. introduction. background. since the early days of building railroads in the united states, wood has been the traditional material used for crossties. in recent years .

railroad crossties (sleepers) are replaced annually on class 1 railroads in the united states at an approximate cost of $500 million. therefore, a need exists to develop innovative means for improving the performance and .

composite railroad cross tie supporting railroad track rails on a ballast or concrete roadbed is provided comprising an elongated wooden core, an end cap positioned over each end of the core and an outer shell or coating. the wooden core consists of virgin or recycled natural wood or of man made engineered wood such .