| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide flexible joint structure having excellent workability, in which the side face hole of a manhole and a water flow pipe are connected with elasticity in cooperation with a rubber gasket, anew. SOLUTION: A proper quantity of a curing agent consisting of clay such as acidic clay or a mineral, etc., such as zeolite and having crystallization water are admixed with one-component moisture absorption type pasty sealing material 6 cured as the elasticity of a urethane, a silicon, a modified silicon, an epoxy/modified silicon, etc., is maintained as it is, the sealing material 6 is changed into an instantaneous curing type by moisture-absorption promotion, and the internal-surface side of a rubber gasket-filled ring-shaped clearance 5 between the side face hole 2 of the manhole 1 and the water flow pipe 4 is filled with the sealing material 6. The ring-shaped clearance 5 is sealed with elasticity together with the rubber gasket 3 at that time.</p> |
