CEN/TC 104/WG 16 - Joint Working Group CEN/TC 104/SC 1, CEN/TC 104/SC 2 and CEN/TC 288 - Concrete for special geotechnical works and foundations

(1) This document specifies additional requirements to prEN 206 1 for the constituents, specification and conformity control of concrete used in:
-   bored piles constructed in accordance with EN 1536;
-   diaphragm walls constructed in accordance with EN 1538;
-   cast-in-place displacement piles constructed in accordance with EN 12699;
-   micropiles constructed in accordance with EN 14199.
(2) The requirements provided in this document are specified in accordance with prEN 206 1:2024, 7.2 Specifications for designed concrete.
(3)  This document can also apply to applications in special geotechnical works other than those listed above.
NOTE 1   For special geotechnical works provisions on cement, minimum cement content, minimum fines content, maximum water/binder ratio, target values of fresh concrete properties and maximum tolerances for target values can deviate from the provisions for other works in prEN 206 1.
(4) This document is based on the assumption that the specification is based on considerations including the site conditions and the conditions for execution of concrete used in special geotechnical works.
NOTE 2   Guidance for the specification of concrete used in special geotechnical works can be found in the informative Annex A.