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International Journal of Concrete Structures and Materials

Table 4 Hydration products.

From: Resistance Properties to Chloride Ingress of Standard-Cured Concrete Made with an Admixture Incorporating Rich SiO2 and Al2O3

Hydration product

Symbol

2θ

Ettringite (C3A·3CaSO4·32H2O)

Et

9.1

Monosulfate (C3A·CaSO4·12H2O)

Ms

9.9

Kuzel’s salt (C3A·0.5CaSO4·0.5CaCl2·10H2O)

KS

10.6

Friedel’s salt (C3A·CaCl2·12H2O)

FS

11.2

Monocarbonate (C3A·CaCO3·11H2O)

Mc

11.6

Portlandite (Ca(OH)2)

CH

18.0

  1. Tube voltage: 30 kV; tube current: 100 mA; interval: 0.02°; time: 2 s/step; start–end positions: 5°–70° (for XRD measurement and Rietveld analysis).
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