EP 0471978 A3 19920422 - POROUS SURFACE COVERING ELEMENT AND ITS APPLICATION
Title (en)
POROUS SURFACE COVERING ELEMENT AND ITS APPLICATION
Publication
Application
Priority
DE 4022586 A 19900716
Abstract (en)
[origin: EP0471978A2] The invention relates to a water-permeable surface covering element (2) for road surfaces, having a body of mineral grains (22) bonded with a binder while leaving through-pores (20) free, in particular of concrete. According to the invention, a facing layer (6) covering the body (4) is provided with pores (20) which go through to the body and the average free permeating cross-section of which is less than the average free permeating cross-section of the pores (28) of the body. In addition, the invention relates to the application of a high-pressure water jet method of flushing out the through-pores (20) of the facing layer (6) in the composite road surface of the surface covering elements (2). <IMAGE>
IPC 1-7
IPC 8 full level
E01C 5/06 (2006.01); E01C 5/20 (2006.01); E01C 5/22 (2006.01); E01C 11/22 (2006.01)
CPC (source: EP)
E01C 5/065 (2013.01); E01C 5/22 (2013.01); E01C 11/225 (2013.01)
Citation (search report)
- DE 3909169 A1 19891005 - TAKAHASHI SABURO [JP], et al
- CH 569151 A5 19751114 - WELTY LLOYD G
- AT 388003 B 19890425 - KATZENBERGER HELMUT [ST]
- GB 2136470 A 19840919 - MOORE BARRIE PETER
- FR 2500025 A1 19820820 - SERVISPORT STE NLE FABR [FR]
- DE 8808104 U1 19880825
- FR 2143412 A3 19730202 - BAYER AG
- [X] NL 8802579 A 19900516
- WEGEN, Band 64, Nr. 6, Juni 1990, Seiten 30-31, Ede, NL; G. G. VAN BOCHOVE: "Nieuw concept voor zeer open asfaltbeton", das ganze Dokument.
Designated contracting state (EPC)
AT BE CH DE FR LI LU NL
DOCDB simple family (publication)
EP 0471978 A2 19920226; EP 0471978 A3 19920422; EP 0471978 B1 19940406; AT E104008 T1 19940415; DE 4022586 A1 19910808; DE 59101318 D1 19940511
DOCDB simple family (application)
EP 91111775 A 19910715; AT 91111775 T 19910715; DE 4022586 A 19900716; DE 59101318 T 19910715