US 12,331,519 B2
Structure and construction method
Joel Baur, Cape Town (ZA); Benno Büeler, Winterthur (CH); and Andreas Graf, Pieterlen (CH)
Assigned to Citra Group AG, Winterthur (CH)
Filed by Citra Group AG, Winterthur (CH)
Filed on Nov. 19, 2024, as Appl. No. 18/951,815.
Application 18/951,815 is a continuation of application No. PCT/IB2023/060338, filed on Oct. 13, 2023.
Claims priority of application No. 2301325 (GB), filed on Jan. 30, 2023; and application No. 2023/08056 (ZA), filed on Aug. 21, 2023.
Prior Publication US 2025/0075497 A1, Mar. 6, 2025
Int. Cl. B32B 13/00 (2006.01); B32B 13/02 (2006.01); B32B 13/04 (2006.01); E04C 2/288 (2006.01)
CPC E04C 2/2885 (2013.01) [B32B 13/02 (2013.01); B32B 13/04 (2013.01); B32B 2250/03 (2013.01); B32B 2250/40 (2013.01); B32B 2307/304 (2013.01); B32B 2607/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A structure comprising:
a core wall structure comprising elements of lightweight thermal insulation material and rigid mineral boards, said core wall structure having two opposing outer surfaces and at least some of said rigid mineral boards being positioned between the elements of lightweight material at spaced intervals to extend transversely across the core wall structure, with opposing edges of the mineral boards being exposed on the opposing outer surfaces of the core wall structure; and
skins of cement-based plaster extending on the opposing outer surfaces of the core wall structure to cover opposing sides of core wall structure at least in part;
wherein the exposed edges of the mineral boards are embedded at least in part in the skins of cement-based plaster on the opposing sides of the core wall structure, each of the mineral boards forming a rigid structural connection between the opposing skins of cement-based plaster wherein edges of the elements of lightweight thermal insulation material are recessed adjacent the exposed edges of the mineral boards, to provide space for the reinforcement of the skins of cement-based plaster.