From: Modeling life expectancy and cost effectiveness for UHPC bridge retrofitting techniques
Variable | Unit | Mean value | Standard Deviation | Distribution Type | Reference |
---|---|---|---|---|---|
Surface Chloride Concentration | kg/m3 | 5.47 | 1.83 | Lognormal | |
Diffusion Coefficient | mm2/year | 3.15 | 0.5 | Normal | Farzad 2018 |
Water Cement Ratio | n/a | 0.25 | n/a | Fixed value | Federal Highway Administration (FHWA) 2019 |
Concrete Cover | mm | 51 mm (2 inch) | 2 | Normal | |
Threshold Value | kg/m3 | 1.35 | 0.135 | lognormal | (Lounis 2003) |
Propagation Time | Years | 6 | 4 | Normal | Used in Life 365 software |