Soundness
Soundness test was conducted in this study. As shown in Table 4 and Fig. 4, it can be observed that the expansion
considerably decreases with addition of olive waste into Portland cement as compared to the ordinary cement paste and it is
less than the specification limit (0.8%).
This result indicates less chances of cracking. This effect can be attributed to the high content of MgO and free CaO. Slow
hydration of MgO or CaO leads expansion of cement pastes.