Figure 3.
Micro-load system used in compression test: (a) selectable grip on lower part of the jig that is installed with a load cell on the upper part of the jig; (b) compression test jig—a jig cover was installed to prevent the broken pieces from popping when the specimens reached their breaking points; (c) compression test was performed after placing the specimens on the lower jig and lowering the upper jig.
