Flow behavior of cementitious-like suspension with nano-Fe3O4 particles under external magnetic field

Abstract The flow behavior of cementitious-like (limestone powder) suspension containing nano-Fe 3 O 4 particles at constant shear rate 10 s −1 , characterized by the evolution apparent viscosity over time, is investigated under various magnetic fields. Results show that limestone powder flow-state exhibits remarkable magneto-rheological responses, reflected a significant increase in after applying an external field. A higher field strength corresponds to more rapid and pronounced response. experiences sudden alteration with stepwise change due formation or disintegration clusters. Linearly increasing low ranges (e.g. 0 T–0.3 T) shows less influences on viscosity, while relatively high field, gradually increases comparable obtained 0.75 T. When removed, sharp reduction. If linearly decreases zero, however, continuously until reaching peak then decreases. This research different ways how desired level can be reached means