| 摘要 |
<p>Storable, quick-setting, strong cement is obtd. by vibro-activating or pulverising cement in activating plants, esp. ball-, cage- or roller-mills. Setting times and also optimum storage stability are determined by selected grinding time, if necessary w.r.t. fineness of starting cement. Activating plant is pref. used as part of a grinding system for activating a definite grinding fraction (multi-chamber cpd. mills) or for recovered material (rotary mills).</p> |
