| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for fixing a post in an embedded hole while preventing corrosion produced in a steel pipe serving as a post of a guardrail. SOLUTION: A part 13 of an embedded portion of a post 1 for 10-50 cm length downwards from the ground surface where corrosion is easy to be produced is covered, interposing a double-coated pressure-sensitive adhesive tape made of non-vulcanized butyl rubber 5, with a cylindrical sleeve 6A-C made of plastic such as polyolefine or the like. At the upper part of the sleeve, the upper end of the double-coated pressure-sensitive adhesive tape is located a little lower while a caulking material 9 is filled in a space between the post and the sleeve. The post is inserted into an embedded hole 2 provided in advance. Then, after sand 4 is filled around a base up to the ground surface, the portion between the part not embedded in the sand and the part a little above the ground surface is fixed with a road repair material 8 while the road repair material is filled up extra so that rainwater flows smoothly. Liquid rubber filler or cement mortar can be filled and fixed around the part requiring corrosion protection. COPYRIGHT: (C)2009,JPO&INPIT
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