New ties of longitudinal reinforced concrete blocks are 4 ft 3 in. long with 8 in. spaces between for placement of steel tie bars; running rails are on corrugated rubber pads 3/16 in. thick in same width as base of rail, and are secured to ties by spring clips.
French railway try out concrete sleepers under welded rail
Ry Track Structures
Railway Track and Structures ; 49 , n 2
1953
2 pages
Article (Journal)
English
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