EP 0499572 B1 19971008 - Apparatus for cutting up fibre string into fibre cuts and dosing the latter into a concrete mixture
Title (en)
Apparatus for cutting up fibre string into fibre cuts and dosing the latter into a concrete mixture
Title (de)
Vorrichtung zum Schneiden eines Faserstranges in Faserstücke und Dosieren der letzteren in eine Betonmischung
Title (fr)
Installation pour la coupe du fil continu en fibres coupées et dosant les dernières dans un mélange béton
Publication
Application
Priority
DK 23491 A 19910212
Abstract (en)
[origin: EP0499572A1] A method and an apparatus for adding to a concrete mixer a desired quantity of fibre cut e.g. of plastic. The apparatus comprises a concrete mixer (5), a magazine (16) for storing a number of spools (15) with fibre string (12), and a cutter (9) for advancing during the dry mixing the fibre string and cutting it into predetermined lengths which are fed to the concrete mixture in an even and uniform flow. The apparatus also comprises at least one sensor (20) for sensing the feeding speed of the fibre string and giving off signal to a control unit (not shown) which again controls the feeding speed. By way of the invention it is possible to achieve a far more even and more uniform distribution of the plastic fibres in the finished concrete than known before, whereby the material improving properties of the plastic fibres are optimally exploited. <IMAGE>
IPC 1-7
IPC 8 full level
B28C 5/40 (2006.01)
CPC (source: EP)
B28C 5/404 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0499572 A1 19920819; EP 0499572 B1 19971008; AT E158977 T1 19971015; DE 69222547 D1 19971113; DE 69222547 T2 19980423; DK 23491 D0 19910212
DOCDB simple family (application)
EP 92610009 A 19920211; AT 92610009 T 19920211; DE 69222547 T 19920211; DK 23491 A 19910212