| 摘要 |
<p>A method for the provision of moisture migration barring layer within brick work walls and structures, comprising drilling holes (11) in the structure and drying the same to permit introduction of a hydrophobing agent. The drying is carried out by blowing into at least certain of the holes of a drying medium having a low relative humidity, preferably hot compressed air and under optimal control of at least two essential parameters for the drying result, viz. the difference of relative humidity between the drying medium and the superficial layer immediately adjacent the hole walls, the velocity of the drying medium and the evaporation. The hydrophobing agent is admitted in atomized or gaseous state during the drying step. An equipment for the provision of a moisture migration barring layer in building structures or the like by drilling holes (11) in the structure and providing a dried zone, that is hydrophobied, comprises means (12, 17) for the provision of drying air, preferably compressed air having a low relative humidity, and means for the provision of a hydrophobing agent in atomized or gaseous state.</p> |
