ABSTRACT
Figure 1 shows the healing process of the cracked three-component system paste [OPC90% + CSA5% + Geo-materials5%] under water supply. In this case, the crack with an initial width of 0.2 mm was almost healed after 28 days. Rehydration products between cracks were clearly observed after 14 days, and the self-healed perfectly even though there were small cracks between the rehydration products after 200 days, as shown in Figure 1 (f).
