The major chemical compounds of cement are:
Fig. 1 SEM images of (A) concrete matrix, (B) struts formed by PAA in concrete matrix, (C) PAA-urea supramolecular scaffolds, (D) ZrO2 and TiO2 nanoparticles in concrete with no scaffolds and (E) ZrO2 and TiO2 nanoparticles within scaffolds, size of ZrO2 and TiO2 nanoparticles has been determined to be 54 and 30 nm, respectively, by using a scale bar inside SEM.
- Tricalcium silicate, C3S
- Dicalcium silicate, C2S
- Tricalcium aluminate, C3A
- Tetracalcium aluminoferrite, C4AF
- Gypsum, CSH2