| 摘要 |
PROBLEM TO BE SOLVED: To provide a pin for confirming reinforcement covering thickness properness in a concrete floor base for detecting concrete covering thickness to a reinforcement in a dimensionally accurate manner by equipping the lowermost end reinforcement with the pin beforehand when placing concrete. SOLUTION: With a hanging pin with graduation as a subject, the upper face of the axis of the hanging pin is provided with a height reference face abutting against the lower face of the reinforcement to allow the hanging pin to pass beneath a concrete form and to be fitted to the lowermost end reinforcement. A tightening device is provided fitted to the reinforcement to press the height reference face, and the graduation is provided from the height reference face as a base point. The lowermost end reinforcement is equipped with the pin beforehand when placing concrete. The concrete covering thickness to the reinforcement can thereby be detected in the dimensionally accurate manner, and moreover since the pin is passed through beneath the concrete form, improperness of a reinforcement position can be easily recognized when placing concrete from the time when the form is built up. This can prevent inconvenience of manufacturing a floor base product improper in the covering thickness or the danger of using it. COPYRIGHT: (C)2004,JPO&NCIPI
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