'Sectra’ was a French prefabricated steel formwork design for flats which John Laing and Son Ltd acquired the British rights to in 1962. It was a method of using precision made steel formwork for the placing of structural concrete in 'tunnel' sections in room unit widths and ceiling heights. The units were bolted together in rows on special tracks, with the concrete poured to form the walls and floors in one operation.
This image was catalogued as part of the Breaking New Ground Project in partnership with the John Laing Charitable Trust in 2019-20.
This is part of the Volume: JLP01/01/058 Examples of 'Sectra' housing, a French prefabricated steel formwork design for blocks of flats; within the Series: JLP01/01 John Laing Photographic Collection Project Albums; within the Collection: JLP01 John Laing Photographic Collection
Contact Historic England Archive
Mid 20th Century Flats, Construction
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