| 摘要 |
PROBLEM TO BE SOLVED: To perform simple and reliable work by a method wherein a permeable waterproofing agent and a resin waterproofing agent is fed under pressure in the crack of concrete by using an aerosol type spray. SOLUTION: A permeable waterproofing agent and a resin waterproofing agent are sprayed in a crack spot 1 of concrete by an aerosol type spray can 2 and fed under pressure in the crack 1 to prevent penetration of rainwater. When alkali silicate or calcium silicate is used as the waterproofing agent, after drying, water is sprinkled to fill the crack 1. A nozzle 3 of the can 2 is formed of stainless, aluminum, and plastic and crushed by a nipper, matched with a crush width, and an injection pressure is regulated at a site. Further, since the tip art of the nozzle 3 is apt to be choked, folds are formed at intervals of a given distance and when the tip is choked, it is cut. Liquid LPG gas is sued in the can 2, water proofing agent is pressed in the crack 1 and a surplus water proofing agent is reacted to outside air to bring it into an air bubble-form state and prevent flying of the waterproofing agent and the waterproofing agent sprayed on a vertical surface is prevented from running. |
