(19)
(11) EP 0 851 067 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.10.2000 Bulletin 2000/42

(43) Date of publication A2:
01.07.1998 Bulletin 1998/27

(21) Application number: 97660153.4

(22) Date of filing: 29.12.1997
(51) International Patent Classification (IPC)7: E04B 1/16, E04B 1/90, E01F 8/00
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 30.12.1996 FI 960636 U
16.04.1997 FI 970196 U

(71) Applicant: Partek Concrete Development Oy Ab
03101 Nummela (FI)

(72) Inventors:
  • Järvinen, Lassi
    37600 Valkeakoski (FI)
  • Kaivola, Erkki
    03101 Nummela (FI)
  • Korander, Olli
    04200 Kerava (FI)
  • Kujala, Eero
    30100 Forssa (FI)
  • Lehtonen, Jukka
    00680 Helsinki (FI)
  • Murtonen, Jarmo
    02260 Espoo (FI)
  • Mäkelä, Reijo
    30420 Forssa (FI)
  • Sarin, Heikki
    02230 Espoo (FI)

(74) Representative: Langenskiöld, Tord Karl Walter et al
Ruska & Co. Oy, Runeberginkatu 5
00100 Helsinki
00100 Helsinki (FI)

   


(54) Joint structure and noise barrier


(57) A concrete joint slab structure comprising a first part (1) cast in advance, one surface thereof being provided with several parallel ridges (2), and a second part cast on top of said first part, extending into the grooves between the ridges of the first part. The ridges (2) are provided with a portion that is narrower than the outer portion thereof. The slab can be used also in a noise barrier consisting of a compact load-bearing concrete layer and a more porous noise absorbing concrete layer.






Search report