Paper number 1281
|INTERFACE PROPERTIES BETWEEN A STEEL PRE-STRESSING STRAND AND AN EPOXY MATRIX.|
J. Van Vooren1, B. Van Vooren2, D. Van Hemelrijck1
1Free University of Brussel, Dept. of Mechanics of Materials and Constructions,
Pleinlaan 2, 1050 Brussels, Belgium.
2Dywidag-Systems International nv
Industrieweg 25 - B3190 Boortmeerbeek
|Summary||The mechanical properties of the interface between a steel pre-stressing strand and an epoxy matrix as used in a combined wedge-bond anchorage were studied. This type of anchorage transfers the loads between the bridge deck and the pylons. As for the fiber-matrix interface in composite materials the pull-out test was used to characterise the interface behaviour. The influence of the bondlength on important characteristics as for instance initial debonding and the pull-out force was investigated.
||Keywords|| interface, pre-stressing strand, pull-out test, gradual debonding.
Theme : Joints ; Bonded joints
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