Research Article
Durability to Chemical Attack by Acids of Epoxy Microconcretes by Comparison to Cementitious Ones
Table 9
Characteristic FTIR bands before chemical attack.
| Band (cm) | Assignment | Cement hydrate |
| 1472 | O-H bending | Portlandite CH | 1086 | S-O stretching | sulfate ions | 1046 | Si-O stretching | Calcium silicate hydrate C-S-H | 875 | Al-O-H bending | Ettringite AFm | 778 | Si-O-Al bending | AFt, AFm | 680 | Al-O | AlO4 |
|
|