Research Article
Research on the Anti-Leakage System for Reinforced Concrete Flat Roofs in Cold Areas
Table 2
Material thermodynamic parameters.
| | Material | Thermal conductivity/(W/(m·K)) | Specific heat capacity/(J/(kg°C)) | Density/(kg/m3) | Modulus of elasticity/(MPa) | Linear expansion coefficient/(m/°C) |
| | C30 concrete | 1.74 | 0.92 | 2500 | 30000 | 8 × 10−6 | | Cement pearl rock | 0.21 | 1.17 | 600 | — | — | | Cement mortar | 0.93 | 1.05 | 1800 | — | — | | Waterproofing roll roofing | 0.17 | 1.47 | 600 | — | — | | Iron casting | 49.9 | 0.48 | 7250 | — | — |
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