(19)

(11)

EP 2 084 328 A1

(12)

(43) Date of publication: 05.08.2009 Bulletin 2009/32 (21) Application number: 07815457.2 (22) Date of filing: 31.10.2007

(51) International Patent Classification (IPC):  E01C 11/10(2006.01) E04F 21/165(2006.01) E04B 1/684(2006.01) (86) International application number: PCT/AU2007/001653 (87) International publication number: WO 2008/058311 (22.05.2008 Gazette 2008/21)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 14.11.2006 AU 2006906338 P (71) Applicant: SRB Construction Technologies Pty Ltd. Blackwood SA 5051 (AU)	(72) Inventor: SLADOJEVIC, Robert Blackwood, S.A. 5051 (AU) (74) Representative: Pawlyn, Anthony Neil  Urquhart-Dykes & Lord LLP Tower North Central Merrion Way Leeds LS2 8PA Merrion Way Leeds LS2 8PA (GB)