Research Article

Large Ring Test for Evaluation of Restrained Shrinkage Cracking: Calibration and Experimental Trial

Figure 3

The calibration setup of the steel ring is illustrated with (a) a photograph of the setup and (b) a graphical presentation where P (in Newtons) is the point load applied by the hydraulic jack, RIS (m) is the inner radius of the steel ring, and θ (in degrees) is the angle measured from the line perpendicular to the line of action passing through the centre of the ring, where no displacement occurs in the direction of the line of action.
(a)
(b)