![Autogenous Linear Deformation: Traditionally, there are two main approaches used to detect the autogenous shrinkage strains i.e. Free and Restrained Shrinkage testing. [5] has proposed a typical layout scheme for such measurements as shown in Fig. 4](https://figures.academia-assets.com/41477560/figure_004.jpg)
Figure 4 Autogenous Linear Deformation: Traditionally, there are two main approaches used to detect the autogenous shrinkage strains i.e. Free and Restrained Shrinkage testing. [5] has proposed a typical layout scheme for such measurements as shown in Fig. 4
Related Figures (5)
![A graphical representation of concrete’s internal composition change as a result of hydration of cement particles has been shown in Fig. 2 Figure 2: Hydration Reaction Imparting Shrinkage Phases [2]](https://figures.academia-assets.com/41477560/figure_003.jpg)
![Figure 6: Model of Test Rig [16] proposed a testing apparatus for determining autogenous deformation measurements of concrete at early ages of casting as shown in Fig. 6. The frame is immersed in water which is filled in a tank. The temperature of water inside the tank has been controlled with the aid of a circulation bath. Displacement and temperature data is recorded automatically. The deformations occurring in the concrete member are recorded from one hour maximum after the time elapsed from concrete casting. The time of setting must be measured by adopting some other procedure as it is not convenient to be recorded during this experimental session.](https://figures.academia-assets.com/41477560/figure_005.jpg)
![Corrugated Mould System: A_ specially designed corrugated mould system mingles the advantages of both, Autogenous Linear Deformation and Autogenous Volumetric Deformation techniques, as stated by [13] as shown in Fig. 5 Figure 5: Corrugated Tube in a Dilatometer](https://figures.academia-assets.com/41477560/figure_006.jpg)