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EP 4 771 254 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24782624.1 (22) Date of filing: 28.08.2024

(51) International Patent Classification (IPC):  E21D 11/08(2006.01) E21D 11/38(2006.01) E21D 11/10(2006.01) (52) Cooperative Patent Classification (CPC): E21D 11/08; E21D 11/083; E21D 11/105; E21D 11/38 (86) International application number: PCT/IB2024/058356 (87) International publication number: WO 2025/046482 (06.03.2025 Gazette 2025/10)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 01.09.2023 IT 202300018042 (71) Applicants: Paver S.p.A. 29122 Piacenza (PC) (IT) Autostrade per L'Italia S.p.A. 00159 Roma (IT) Tecne Gruppo Autostrade per l'Italia S.p.A. 00159 Roma (RM) (IT) Amplia Infrastructures S.p.A. 00156 Roma (RM) (IT)

(72) Inventors: ALESSIO, Carlo 00159 Roma (RM) (IT) MENEGOLA, Italo 00159 Roma (RM) (IT) MONTENET, Cesare 29122 Piacenza (PC) (IT) STECCONI, Nicoletta 29122 Piacenza (PC) (IT) FARINA, Claudio 00159 Roma (RM) (IT) (74) Representative: Pietra, Giulia et al Marchi & Partners S.r.l. Via Vittor Pisani, 13 20124 Milano 20124 Milano (IT)