Ties used in China; tests made on 60-lb. rails with 6-coupled locomotive having 12-ton axle load, running at 15 m.p.h.; test on ties reinforced by boiler tubes or solid rod; former has shown cracks, latter none; in all cases tubes employed for reinforcement were scrap.
Reinforced concrete sleepers
Ry. Engr
Railway Engineer ; 49 , n 576
1928
2 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1929
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