The term “set and stiffening” indicates an increase in stiffness of the fresh cement-based material as a result of hydration. Set is generally used to describe the transition from a liquid (or a slurry) to a solid state, whereas stiffening is used to describe the gradual increase in stiffness caused by development of solid microstructure. The concept of set and stiffening is important because it affects the workability, finishability, and load carrying capacity of the early age cement based materials. However, current standard procedures available for set and stiffening measurements have some drawbacks.