| 摘要 |
<p>A hydraulic binder containing finely ground moderately latent hydraulic blast-furnace slag with a Blaine factor higher than 5000 cm2 g, as well as a sulphate activator and activating additives. The moderately latent hydraulic blast-furnace slag has the following analytic values: vitreousness above 93 %; content SiO2 34 - 40 %; CaO 34 - 37 %; Al2O5 above 9 % and preferably under 13 %; (CaO + MgO)/(Al2O5 + SiO2) 0.88 - 0.98. These values can be achieved by mixing different types of slag. The binder embodying the invention preferentially contains 0.5 - 5 % Portland cement clinker or Portland cement.</p> |
