Ca₄Al₆SO₁₆ is a calcium aluminate sulfate ceramic compound belonging to the family of ettringite-related phases, which are important hydrated sulfate minerals. This material is primarily investigated in cement chemistry and concrete science, where it forms as a hydration product in Portland cement systems and influences early-age strength development and durability characteristics. Engineers consider this phase when designing high-performance concrete, sulfate-resistant formulations, and understanding cement hydration mechanisms, as it plays a critical role in controlling setting time, volume stability, and long-term resistance to external sulfate attack.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.09588 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.914 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -139.3 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.04060 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.070 | eV/atom | — |