EP 0733757 B1 20010627 - Method for protecting concrete-embedded reinforcing elements against oxidation effects
Title (en)
Method for protecting concrete-embedded reinforcing elements against oxidation effects
Title (de)
Verfahren zum Schützen gegen Oxydations-Effekte von in Beton eingebettete Bewährungselemente
Title (fr)
Procédé de protection contre les effets de l'oxydation sur des armatures actives noyées dans une masse de béton
Publication
Application
Priority
- EP 95870020 A 19950306
- US 70967896 A 19960909
Abstract (en)
[origin: EP0733757A1] The reinforcements (2) to be protected are assemblies of wires or rods in a duct, within the mass of concrete. To overcome imperfections from the concrete production, such as porosity or voids, a hole (4) is bored in the concrete up to the reinforcement. A corrosion inhibiting solution is then injected into the bore and a pulsating wave of high power applied. This ensures penetration of the solution. The reinforcement may be pre or post stressed and after injection of inhibiting solution, the voids may be filled by injection with cement. The solution may be introduced under pressure, using a pulsating pump (5). Alternatively, an ultrasonic high power emitter may be used, instead of a pulsating pump.
IPC 1-7
IPC 8 full level
E04G 23/02 (2006.01)
CPC (source: EP US)
E04G 23/02 (2013.01 - EP US); E04G 23/0203 (2013.01 - EP US); E04G 23/0211 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0733757 A1 19960925; EP 0733757 B1 20010627; AT E202613 T1 20010715; DE 69521492 D1 20010802; DE 69521492 T2 20020606; DK 0733757 T3 20011029; ES 2158065 T3 20010901; GR 3036465 T3 20011130; PT 733757 E 20011228; US 5840247 A 19981124
DOCDB simple family (application)
EP 95870020 A 19950306; AT 95870020 T 19950306; DE 69521492 T 19950306; DK 95870020 T 19950306; ES 95870020 T 19950306; GR 20010401316 T 20010830; PT 95870020 T 19950306; US 70967896 A 19960909