EP 0009607 B1 19810930 - CLOSURE FOR A PRE-STRESS CHANNEL OF A PRE-STRESSED CONCRETE ELEMENT
Title (en)
CLOSURE FOR A PRE-STRESS CHANNEL OF A PRE-STRESSED CONCRETE ELEMENT
Publication
Application
Priority
DE 2838638 A 19780905
Abstract (en)
[origin: EP0009607A1] 1. Closure for ventilation openings (5, 5') of a cable duct in a prestressed concrete member or of a pressing chamber, into which injection material (10), for example cement or intrusion mortar, is moved under pressure through an injection opening (4), characterized in that the closure (V) includes a closure part (6, 11, 12) of porous material, which covers the ventilation opening and the pores of which are chosen such that air and thin-liquid materials can pass therethrough, but injection material (10) of the thinnest desired consistency cannot pass through.
IPC 1-7
IPC 8 full level
E04C 5/10 (2006.01); E04G 21/12 (2006.01)
CPC (source: EP)
E04C 5/10 (2013.01); E04G 21/12 (2013.01)
Designated contracting state (EPC)
AT CH FR IT NL
DOCDB simple family (publication)
EP 0009607 A1 19800416; EP 0009607 B1 19810930; AT E265 T1 19811015; DE 2838638 B1 19791018; DE 2838638 C2 19800703
DOCDB simple family (application)
EP 79103113 A 19790824; AT 79103113 T 19790824; DE 2838638 A 19780905