| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of forming a waterproofing membrane in a building, according to which a urethane waterproofing film having suitable water vapor permeability is formed over the entire waterproofing objective surface having a large area, while adjusting the film so as to have a positively uniform thickness of 10 mm or more, preferably 20 mm or more. SOLUTION: According to the method, a film thickness setting member 52 which has a mat-like outer shape of a predetermined thickness D2 and has a number 52 of cylindrical holes penetrating in parallel with each other in a thickness direction, is placed on the waterproofing objective surface 23. Then a liquid mixture 22 containing a base compound liquid 3 and a hardener 4 thereof which are mixed beforehand in an ejecting machine 21, is ejected from the ejecting machine 21 along a current of compressed air, and sprayed to the waterproofing objective surface 23. The spraying is continued until the accumulated height of the liquid mixture 22 becomes almost the same as the thickness D2 of the film thickness setting member 52, and by hardening the liquid mixture 22 accumulated until the film thickness setting member 52 is embedded therein, the urethane waterproofing film 57 is formed. COPYRIGHT: (C)2006,JPO&NCIPI
|
