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Railroad Tie

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Аннотация к книге "Railroad Tie"

High Quality Content by WIKIPEDIA articles! A railroad tie is a rectangular object used as a base for railroad tracks. Ties are members generally laid transverse to the rails, on which the rails are supported and fixed, to transfer the loads from rails to the ballast and subgrade, and to hold the rails to the correct gauge. Traditionally, ties have been made of wood, but concrete is now widely used. Steel ties and plastic composite ties are currently used as well, although far less than wood or...

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Издательство: Книга по требованию
Дата выхода: июль 2011
ISBN: 978-6-1304-6947-4
Объём: 128 страниц
Масса: 215 г
Размеры(высота, ширина, толщина), см: 23 x 16 x 1

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