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Patent Searching and Data


Title:
PADDING METHOD OF SLEEPER
Document Type and Number:
Japanese Patent JP2002275809
Kind Code:
A
Abstract:

To provide a padding method of a sleeper capable of quickly padding a hole by using a urethane resin even when water pools in the hole.

In this padding method of the sleeper, a liquid urethane resin composition is filled in an unrequired hole bored in the sleeper and hindering driving of a rail fixing screw spike, the hole is padded by reacting and hardening the urethane resin composition in the hole, and the screw spike can be driven in a padding part. A water absorptive high polymer is put in the bottom of the hole, and the urethane resin composition is filled in the hole in a state of absorbing moisture in the hole in the water absorptive high polymer.


Inventors:
Taniguchi, Ryoichi
Yamashita, Takashi
Application Number:
JP2001000076389
Publication Date:
September 25, 2002
Filing Date:
March 16, 2001
Export Citation:
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Assignee:
SEKISUI CHEM CO LTD
International Classes:
E01B31/24; (IPC1-7): E01B31/24