Replication Data for: Effects of a Two-Stage Mixing Process on the Characteristics of Concrete: Part II - Fresh Concrete Rheology and Measurement Protocols

The data was originally used to explore the effects of a two-stage mixing process on the properties of fresh concrete. The data set represents experimental measurements taken with a modified ICAR Rheometer on three different concrete proportions with two different mixing configurations.

The data includes yield stress and plastic viscosity. Yield stress represents the minimum shear stress required to initiate flow of the fresh concrete, reflecting interparticle structure and cohesion (reported in Pa); Plastic viscosity represents the proportionality between shear stress above the yield and shear rate under a Bingham model, describing resistance to flow once movement has begun (reported in Pa·s). The measurements were conducted using two different measurement protocols, sequential and pointwise: Sequential protocol (SEQ): An uninterrupted staircase test where rotational speed is decreased from 0.45 to 0.05 rps with measurements taking place at five 10-s plateaus, yielding one continuous flow curve per run.