Corrosion protected tensioning member for a prestressable...

Details Corrosion protected tensioning member for a prestressable... Corrosion protected tensioning member for a prestressable...

E - Fixed Constructions

21

D

85/2

E21D 21/00 (2006.01) E02D 5/76 (2006.01) E21D 20/02 (2006.01)

Patent

CA 1064745

ABSTRACT OF THE DISCLOSURE A profiled tensioning rod or combination of rods is provided at the end which is to be inserted into the bore hole of a rock, with a corro- sion protective jacket formed in three parts, an anchoring part adapted to extend over the greater portion of the anchored end of the rod, a "free part" adapted to extend over the (initially) unconnected part of the anchoring rod which extends into the bore hole and a junction part to which the other two parts are connected. The junction part extends beyond the periphery of the other parts of the jacket and is large enough to prevent any substantial flow of cement outwardly from the space between the anchoring part and the bore hole. The "free" part of the jacket contains a deaerating conduit so that when the rock formation is stabilized after the various borings, etc., the free part of the bore hole may be cemented.

297181

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