| 摘要 |
The invention relates to a concrete, comprising a hydraulic binder, water, an aggregate, a mineral admixture and a chemical admixture acting as a superplasticiser, characterized in that said mineral admixture comprises colloidal silica, and clay with a blain value in the range of from 2000 to 8000 cm<SUP>2</SUP>/g. The invention also relates to a method for obtaining such a concrete, comprising a first step of mixing the dry compounds and a final step of adding the water. According to another embodiment the method comprises adding a part of the total amount of water added, after mixing some of the dry compounds and in a later step adding the rest of the water. |
