| 摘要 |
<p>The invention relates to a slag cement having an improved early strength and containing aluminosilicates, blast furnace slag, clinker and CaSO4. The inventive slag cement is characterized by comprising a content of 70 to 95 wt. % blast furnace slag provided in ground form with gt; 4500 Blaine (cm2/g), whereby up to half of this proportion can be substituted by aluminosilcates such as fly ash, alumina, marl or the like. The slag cement also comprises 0.1 to 2 wt. % clinker, sulfate provided in quantities of less than 5 wt. %, calculated as SO3, and 0.3 to 1 wt. % of a superliquifier such as naphthalene sulfonate.</p> |
