Vol.8, No2, 2008, pp. 99-106
UDC 620.193: 625.143.4

CORROSION EFFECTS OF RAIL FASTENING DEVICE ELEMENTS ON JOINT INTEGRITY

Dragutin Georgijević, Zijah Burzić

Military Technical Institute, Belgrade

Abstract

The paper indicates on the corrosion effects of fastening device elements, sleeper screw and spring, on rail fastening force. Laboratory and in-situ testing shows that corrosion increases the friction coefficient, thus requiring a higher torque on sleeper screw to achieve necessary fastening force. Weak joint of rail and sleeper disarrange fastening device integrity and reduce life of its elements.

Keywords: testing, railroad rail, corrosion, fastening moment, friction

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