(19)
(11) EP 2 844 798 A1

(12)

(43) Date of publication:
11.03.2015 Bulletin 2015/11

(21) Application number: 13772090.0

(22) Date of filing: 05.04.2013
(51) International Patent Classification (IPC): 
E01C 19/23(2006.01)
E01C 19/28(2006.01)
(86) International application number:
PCT/US2013/035504
(87) International publication number:
WO 2013/152321 (10.10.2013 Gazette 2013/41)
(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: 06.04.2012 US 201261621259 P

(71) Applicant: The Board of Regents of the University of Oklahoma
Norman, OK 73019 (US)

(72) Inventors:
  • COMMURI, Sesh
    Norman, OK 73019 (US)
  • ZAMAN, Musharraf
    Norman, OK 73019 (US)

(74) Representative: Roberts, Mark Peter 
J A Kemp 14 South Square Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)

   


(54) METHOD AND APPARATUS FOR DETERMINING STIFFNESS OF A ROADWAY