Title:
Replacing Timber Decks on Railroad
Bridges With Prestressed Concrete Slabs
Author(s):
W.R. Hyma
Publication:
Concrete International
Volume:
1
Issue:
5
Appears on pages(s):
18-21
Keywords:
bonding; bridge decks; composite con-
struction (concrete and steel); concrete slabs; epoxy
resins; precast concrete; prestressed concrete; rail-road
bridges; renovating; wood.
DOI:
Date:
5/1/1979
Abstract:
Thirty-two miles of bridges owned by a major railroad are steel-deck girder spans with timber-ballasted decks. The Atchinson, Topeka and Santa Fe is im-mersed in a program of replacing 50- to 60-year-old timber decks with precast-prestressed concrete slabs which are bonded to the steel with an epoxy grout. Transverse joints between slabs also are epoxy-grouted. The result: a monolithic, watertight deck which protects the steel and should greatly extend the painting cycle.