| 摘要 |
The present application is directed at a multi-component cementitious composition with at least a binder and a hardener component, wherein the binder component comprises ground granulated blast furnace slag and water and wherein the hardener component comprises a sodium silicate solution containing at least 42 wt.-%, preferably at least 45 wt.-% or sodium silicate (Na2SiO3). Such multi-component cementitious compositions have been found to provide excellent early strength in excess of 0.5 m Pa after hardening for just 2 h with a gel time in the range of 10 to 20 s. In addition the binder components are stable or at least remixable for up to 4d in the absence of the hardener, which makes them particularly suitable for back filled grouts. |
