| 摘要 |
The present invention concerns a manufactured article impervious to water, the water being rain water, water coming from a water-bearing stratum, and/or from concrete. The manufactured article of the invention may be used in building of habitations, factories, tunnels, and/or submarine structures and the like, the article comprising a leakproofing material. The manufactured article further includes a coating constituted by a film made of a material, the water-solubility of which is kept under control, the film delaying the leakproofing material hydration process for a predetermined period of time from between 1 and 30 days. |
