| 摘要 |
PURPOSE: A structure for waterproofing a slab floor with an expanding joint is provided to increase durability and to keep waterproof and airtight effect by rapidly sealing the crack between slab floors or a floor and a wall. CONSTITUTION: Jute thread(200) infiltrated with urethane solution is filled into a crack(110) between a floor(100) and a floor(100a). Then, little water is sprayed on the yellow hemp to convert the urethane solution to a foaming urethane(210). A cover plate(300) is covered over both ends of both floors or flexible epoxy or concrete is charged on both floors to hide the foaming urethane. The foaming urethane is automatically shrunk fitted with the crack when the floors are heated. Thus, durability and waterproof property of slab floors are enhanced.
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