| 摘要 |
<p>Injection system for the sealing of joints in concrete structures having joint surfaces arising from stepwise casting of such structures and extending between an outer or upper side (the water pressure side) and an inner or lower side (the dry side), for the purpose of preventing penetration of moisture from the water pressure side. The system comprises a per se known profile (1) having a lengthwise through injection passage (3) with an opening (4, 5) to that side of the profile which is to face the joint surface (6), in combination with a per se known swelling material (8, 9) attached to the profile on that side thereof which is to face the water pressure side of the concrete structure. The swelling material (8, 9) shall be disposed along the full length of the profile (1) and around at least one of the end faces of the profile. The opening (4, 5) from the injection passage (3) may be in the form of a continuous slot (4) opening into a widened portion (5) adapted to receive a porous barrier against the intrusion of concrete mass to the injection passage.</p> |
