| 摘要 |
In a gypsum slurry which consists mainly of gypsum, water and dispersant and is pumpable at high solids content, the dispersant contains at least two different polymeric compounds, of which one is a polysaccharide derivative and the other is a polysaccharide, polyvinyl alcohol, polyalkene glycol (polyalkene oxide) or a polysaccharide derivative other than the first one. |
