Review Article
Structural Glass Systems under Fire: Overview of Design Issues, Experimental Research, and Developments
Table 1
Chemical and physical properties of SLS and BS glass types (at room temperature), in accordance with [
1].
| Chemical properties | Physical properties | | | | SLS | BS | | | SLS | BS |
| Silica sand | SiO2 | 69–74 | 70–87 | Density | ρ (kg/m3) | 2500 | 2200–2500 | Mechanical | Lime (calcium oxide) | CaO | 5–14 | — | Young’s modulus (MOE) | E (GPa) | 70 | 60–70 | Soda | Na2O | 10–16 | 0–8 | Poisson’s ratio | ν | 0.23 | 0.2 | Boron oxide | B2O3 | — | 7–15 | Tensile resistance | σkt (MPa)a | 45–120 | 45–120 | Potassium oxide | K2O | — | 0–8 | Compressive resistance | σkc (MPa)b | 1000 | 1000 |
| Magnesia | MgO | 0–6 | — | Coefficient of thermal expansion | αT (10−6C−1) (T < Tg) | 9 | 3.1–6.0 (class 1 to 3) | Thermal | Alumina | Al2O3 | 0–3 | 0–8 | Specific heat capacity | cp (Jkg−1C−1) | 720 | 800 | Others | — | 0–5 | 0–8 | Thermal conductivity | λ (Wm−1C−1) | 1 | 1 | | | | | Emissivity (corrected value) | ε | 0.837 | 0.837 | | | | | Transition temperature | Tg (°C) | 530 | 530 | | | | | Maximum thermal stress | σT (MPa)a | 40–250 | 40–250 |
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aDepending on the treatment of glass; btheoretical value, in accordance with [29].
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