| 摘要 |
<p>Hydrophizing fly ash by coating with an organosilicon compound which can be monomeric or polymeric, numerous examples being given. The material can be used in cement and concrete mixtures; or as a canal lining; or as a cable surround; on water to minimize evaporation, e.g. in reservoirs; or as an aid to sinking oil patches on water.</p> |
