Detection and discrimination of paste filler. Paste comes from paste transition, but not all pastes can transition into paste. Only when the grading of materials constituting paste meets certain conditions, the paste belonging to two-phase flow can be transformed into paste belonging to structural flow through concentration. Whether the paste has been transformed into paste is specifically marked by the three characteristics of paste stability, plasticity and fluidity. Therefore, Detection and discrimination of whether the slurry has been transformed into paste. In essence, it is the detection and discrimination of the three characteristics of paste filler.

Paste filler is proposed in the world. There are many detection methods and discrimination indicators for performance characteristics, such as concentration, slump and saturation indicators for engineers and technicians in Canada, viscosity, yield stress consistency and structure index indicators for engineers and technicians in Germany, fine particle content, concentration and slump indicators for engineers and technicians in Australia, and concentration and consistency indicators for engineers and technicians in North America. In the textbook fundamentals of filling theory, Reynolds index is used to determine structural flow and so on. All these are based on concrete science and summed up under specific conditions. It should be said that they are applied to special. It is very correct under both material and engineering conditions.