Widely used by architects and builders for its many qualities: strength, durability and also for its great adaptability to shapes, the self-compacting concrete (SCC) remains a material of great future both for major infrastructure works and for quality architectural achievements. Currently, to measure the rheological properties of the fresh concrete (plastic viscosity μ p and yield stress τ 0 ), the widely adopted test is the "concrete rheometer." However, the use of a rheometer on site is a very complex operation, because it is too expensive, and in addition, it requires a qualified person to move, handle or repair it. Hence, many laboratories use other empirical tests to predict the rheological behavior of concrete. Each of these tests characterizes only one of the two rheological