| 摘要 |
<p>The present invention relates to a flange for a concrete water tank. More specifically, the flange for a concrete water storage tank according to the present invention comprises: a flange body which is formed of an elastic material, and on which an accommodating portion having a first through hole into which a pipe is inserted and an external diameter extension portion of extending an external diameter from a first lateral end of the accommodating chamber are formed; a first fixated flange fixated in a concrete structure; and a second fixating flange to fixate the external diameter extension portion in the first fixated flange. It is possible to prevent a gap between the concrete structure and the pipe from being enlarged in a long-term usage in consideration of the economical efficiency and stability and to improve the durability of the concrete structure by protecting the concrete structure from an external shock.</p> |
