The present invention concerns a cable anchorage comprising at least one axial channel (6) for accommodating an elongated element (5) with a sheathed portion (5a) and an unsheathed end portion (5b), wherein the channel (6) between a first channel end (3), proximal to a running part of the elongated element, and a second channel end (1) equipped with immobilising device (12), a seal element (26) in the channel (6), a stop element (9) having an end facing said seal element (26) which defines a shoulder (9a), so that an axial displacement of the of the elongated element (5) with respect to the stop element (9) in said channel (6) is possible up to the abutment of the end of the sheathed portion (5a) against the shoulder (9a), creating thereby an abutment position of the elongated element (5) in said channel (6).