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[quote]QUOTE: Originally posted by trainheartedguy Id like to see some of these composite ties. CSX is slowly converting to Concrete in Maryland because unlike the wood ties, which need replaced every 7 years, they last 25 years. How long would composite ties last. [/quote] Major problem with concrete ties is they don't survive derailments. All must be replaced. With wood, a pretty good percentage will survive all but major derailments with some digs and gouges. Another issue with conmcrete is it doesn't work well in swampy areas as the concrete ties tend to settle more in soft soil conditions due to their weight. Concrete, plastic and steel ties are all significantly more expensive than wood. LC
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