Table 4.
Results of research on self-healing technologies applicable to geopolymer concrete [202,203,206,207,208,209,210,211].
| Ref. Number | Healing Agent | Addition by Weight of Cement, % | Self-Healing Performance |
|---|---|---|---|
| [202] | Bacterial spores | 2 | Compressive strength restoration (19.7%); cracks filling |
| [203] | Bacterial spores | 15 | Depth of water penetration decrease (59%); cracks filling |
| [207] | Hollow fibers | 2 | Compressive strength restoration (33.1%); cracks filling |
| [209] | Microcapsules | 4 | Compressive strength restoration (60%); cracks filling; |
| [211] | High temperature activated agents | 50 | Cracks filling |