| 摘要 |
Concrete railroad ties are made having steel plates cast directly into the concrete railroad tie so that the top surface of each steel plate is even wi th the top surface of the concrete railroad tie. Fasteners for the rails can be welded to anywhere within the steel plate. Additionally, each steel plate ca n be cast into one of two different positions of the concrete railroad tie thu s, creating more flexibility as to the positions of the rail fasteners on the railroad tie and reducing the length of the steel plate needed by half to three inches. By utilizing this assembly, the amount of concrete the pattern s needed in a turnout is reduced.
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