Western Pacific has standardized on use of self-sealing type pad constructed of alternate layers of heavy cotton duck and woven burlap, impregnated with waterproofing saturates, laminated with thin films of asphalt, and fastened together with copper-weld stapling; notes on preliminary tests.
Tie pads help solve tie problem
Ry Track Structures
Railway Track and Structures ; 52 , n 5
1956
2 pages
Aufsatz (Zeitschrift)
Englisch
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