(19)

(11)

EP 2 882 905 A1

(12)

(43) Date of publication: 17.06.2015 Bulletin 2015/25 (21) Application number: 13750098.9 (22) Date of filing: 06.08.2013

(51) International Patent Classification (IPC):  E04B 5/02(2006.01) E04B 5/21(2006.01) E04B 5/19(2006.01) E04B 5/10(2006.01) E04C 5/06(2006.01) (86) International application number: PCT/GB2013/052094 (87) International publication number: WO 2014/023948 (13.02.2014 Gazette 2014/07)

(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: 07.08.2012 GB 201214123 (71) Applicant: Laing O'Rourke Plc Dartford, Kent DA2 6SN (GB)	(72) Inventor: STEHLE, John, Siegfried Crossways Dartford Kent DA2 6SN (GB) (74) Representative: Cookson, Barbara Elizabeth  Filemot Technology Law Ltd., 25 Souhampton Buildings London WC2A 1AL London WC2A 1AL (GB)