| 摘要 |
PROBLEM TO BE SOLVED: To secure waterstopping properties by preventing waterproofing from being damaged in execution. SOLUTION: In the waterproofing weight board 1, a weir board body 4 comprises a weir board section 2 and an internal thread section 3 that is integrated with the weir board section by a specific waterproof material. A screw section 5 for joining a support for fixing the support is provided at the rear side (left side in Figure (b)) of the internal thread section 3 in the weir board body. The internal thread section 3 is formed so that it projects at one side of the weir board body 4, namely a concrete placement region, and at the same time a hollow recess 6 is provided so that it is exposed to a side facing the concrete placement region of the weir board body 4. In the screw section 5 for joining the support, a truncated-cone-shaped projection body 14 as in the internal thread section 3 projects at the other side of the weir board body 4, namely at the opposite rear side of a side where concrete is placed, and at the same time a hollow recess 15 is formed in the truncated-cone-shaped projection body.
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