| 摘要 |
<p>A levelling agent intended for smoothing off an uneven substructure, including a hydraulic binder, filler and sand together with an elasticity-increasing agent and an agent for rheologic control flow additive. The liquid filler contains gypsum in an amount active for reduced shrinkage, preferably together with a gypsum retarder for delaying setting of the gypsum.</p> |
