| 摘要 |
The waterstop joining tool is a two piece tool in which each piece is a nonsuperimposable mirror image of the other piece. Each piece is composed of a flat, planar body having depending side flanges defining a bottom channel adapted for sliding engagement with a section of waterstop. One end of each piece is formed at a 90 DEG angle with respect to the longitudinal axis of the tool, and the opposite end is formed at a 45 DEG angle, both ends having a vertical flange extending superiorly to the plane of the body. The body of each piece is bisected by an arch along the medial longitudinal axis, the arch being adapted for supporting the walls of the center bulb of the waterstop. In an alternative embodiment, each piece is arched on both sides, and optionally hinged to a bottom tool, to accommodate waterstop sections having a dumbbell shape in cross section. In use, the tool pieces are used as templates to cut the ends of two waterstop sections at either 90 DEG or 45 DEG angles. A heating iron is applied to the ends of the waterstop sections to create meltback, the two ends of the waterstop are approximated, and the two pieces of the tool are pressed together, the vertical flanges compressing the meltback into a uniform ridge, and held until the waterstop sections cool into a rigid joint.
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