This test method is used for determining the passing ability (measured by the blocking step), the flow spread and flow time of the self compacting concrete as the concrete flows through the J-Ring. The J-Ring flow spread indicates the restricted deformability of SCC due to blocking effect of reinforcement bars and the flow time indicates the rate of deformation within a…
The L-Box test measures the ability of SCC mixes to flow between a set of obstructive bars. Final depth of the concrete at the gate and at the end of the trough is measured and the proportional difference expressed as a blocking ratio. Some test methods require timing the flow with a stopwatch.
U-box test measures the filling ability of self-compacting concrete. The U-box test originally developed in Japan and is sometimes referred to as the box-shaped test. Like other workability tests for self-compacting concrete, the U-box test is also applicable to highly flowable concretes and underwater concretes.
This instrument is used to assess the fluidity and segregation resistance of Self Compacting Concrete. Inverted cone shaped equipment with 75 mm square opening at the bottom is used to assess the properties of mix such as unacceptable viscosity, undesirable volume of coarse aggregate, stability etc. V-Funnel test is an important tool to assess the consistency of the mix.
