Trade Journals for the Concrete Industry

The consistency of fresh concrete is a measure of its rigidity and workability. In the European Standards, concrete consistency is divided into the following consistency classes: very rigid, rigid, plastic, soft, very soft, flowable, and highly flowable. These classes are described using the classifications for the degree of compactability ranging from C0 (very rigid) to C3 (soft) and the flow spread classes F1 (rigid, flow spread < 340 mm) to F6 (highly flowable, flow spread ≥ 630 mm); F6 is now followed by the class SCC, which has a flow spread of > 700 mm. When concrete is mixed in a precast factory, it is essential that the recipe-specific consistency remains constant over a long period of time. But when it comes to developing new concrete types, it is also important to understand the relative impact of e.g. additives and admixtures on the concrete quickly and easily. Eirich has suitable solutions for both scenarios.