Anchoring of tension members

US4443132A · kind A · utility

Assignees

• BAYER HEALTHCARE LLC · DE
• Strabag Bau-AG · DE

Inventors

• Bernhard Kotulla · Cologne, DE
• Martin Weiser · Sinsheim, DE
• Jurgen Faltin · Langenfeld, DE
• Lothar Preis · Bensberg, DE
• Rudolf Schmidt · Giengen an der Brenz, DE
• Eberhard Born · Cologne, DE

Key dates

• Filing date: Jan 18, 1982
• Grant date: Apr 17, 1984
• Expiry date: Jan 18, 2002

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21D20/025
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

By using a packer which is pushed as far over an anchor as the intended length of the moulding, the cavity in a borehole in the region of the bond can be completely filled with a reactive resin. Overhead work is possible even with slowly reacting resins. By using a catalyst on the packer, the reactive resin injected into the borehole behind the packer can be made to harden very rapidly.