Rheologic Characteristics of Slurry Shotcrete Machine

Shotcrete machine provide a lot of help in our life, shotcreting machine work needs slurry, conditioning of the slurry also need to pay attention to a lot of matters, to avoid the jet engine in the process of failure. Generally use heological equation of slurry and flow deformation characteristics of Curve description, and applied it to the theoretical formula of permeability, influence of consideration on grouting parameters, this is the purpose of studying the rheological properties of the slurry. Because of the different size of the slurry, the rheological properties of the slurry are different. Generally, the slurry is divided into Newtonian and non Newtonian, the latter shows that the shear rate of slurry flow is not proportional to the shear stress. A good fluidity of chemical grout is Newtonian, the poor fluidity of cement suspension belongs to this kind of non Newtonian fluid. Therefore, under normal conditions, the movement of groundwater and slurry is laminar flow. The movement of slurry in strata is very similar to the law of groundwater movement. The difference is that the slurry has a viscosity, it is not easy to flow like water, the rheological behavior of the slurry is a reflection of the fluidity of the slurry under the action of external force. The better the fluidity of the slurry, the smaller the pressure loss in the process of slurry flow, the farther the diffusion of the slurry in the rock and soil. On the contrary, the pressure loss in the process of slurry flow is large, and the slurry is not easy to spread.