An equivalent amount of metallurgical slag, water-quenched slag powder and activator was substituted for a part of cement to prepare concretes at strength grades ofC25, C30 and C40. Thanks to the filling effect, pozzo...An equivalent amount of metallurgical slag, water-quenched slag powder and activator was substituted for a part of cement to prepare concretes at strength grades ofC25, C30 and C40. Thanks to the filling effect, pozzolanic effect, raicro-aggregate effect, and improvement of pore structure, the prepared concretes not only had greater strength compared with reference concrete, but also had greater impermeability and frost-resistance. Moreover, the expansion reactions between alkali and aggregates were effectively inhibited. The slag and activator can serve as the raw materials for green concretes.展开更多
文摘An equivalent amount of metallurgical slag, water-quenched slag powder and activator was substituted for a part of cement to prepare concretes at strength grades ofC25, C30 and C40. Thanks to the filling effect, pozzolanic effect, raicro-aggregate effect, and improvement of pore structure, the prepared concretes not only had greater strength compared with reference concrete, but also had greater impermeability and frost-resistance. Moreover, the expansion reactions between alkali and aggregates were effectively inhibited. The slag and activator can serve as the raw materials for green concretes.
