(19)
(11) EP 2 669 434 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.12.2015 Bulletin 2015/49

(43) Date of publication A2:
04.12.2013 Bulletin 2013/49

(21) Application number: 13169677.5

(22) Date of filing: 29.05.2013
(51) International Patent Classification (IPC): 
E01B 3/28(2006.01)
E01B 29/00(2006.01)
 E01B 29/06(2006.01)
E01B 37/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 29.05.2012 EP 12169824

(71) Applicant: Abetong AB
351 03 Växjö (SE)

(72) Inventors:
  • Bolmsvik, Rikard
    352 42 Växjö (SE)
  • Thuresson, Mikael
    342 92 Alvesta (SE)

(74) Representative: Nilsson, Lars 
Awapatent AB P.O. Box 665 Studiegången 3
831 27 Östersund
831 27 Östersund (SE)

   


(54) A method and an apparatus for tuning concrete railway sleepers


(57) A method of tuning a concrete sleeper, comprising deforming the reinforced concrete sleeper beyond its elasticity limits by bending at least a portion of the reinforced concrete sleeper about a transverse axis thereof, thereby generating cracks in the reinforced concrete sleeper, before mounting it at a rail.
An apparatus for tuning reinforced concrete sleepers, comprising means for deforming a concrete sleeper beyond its elasticity limits by forcing at least a portion of the concrete sleeper to bend about a transverse axis thereof, thereby causing cracks in the concrete sleeper.







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