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. 2021 Feb 13;14(4):885. doi: 10.3390/ma14040885

Table 5.

Modeling parameters used in the case study.

Parameters Values
Cement type Type I
Aggregate type Dense crushed limestone
Tri-calcium silicate (C3S) [%] 60.44
Di-calcium silicate (C2S) [%] 20.88
Tri-calcium aluminate (C3A) [%] 10.99
Tetra-calcium aluminoferrite (C4AF) [%] 7.69
Water-cement (w/c) ratio 0.50
Air content, ac [%] 6
Aggregate-to-cement (a/c) ratio 4.5
Curing duration, tcu [days] 14
RH during curing, RHcu [%] See Figure 10
Temperature during curing, Tcu [K] See Figure 10
Age of concrete at the start of the exposure [days] 14
Exposure duration, texp [years] 15
RH during exposure, RHexp [%] See Figure 10
Temperature during exposure, Texp [K] See Figure 10
Temporal function of surface Cl concentration, Cs (t) [M] See Equation (32)
Temporal function of surface O2 concentration, O2 (t) [M] 3 × 10−4
Cl diffusion coefficient in capillary water at 298 K, Dcw [m2/s] 2.03 × 10−9
Critical RH, RHc [%] 75
Activation energy for hydration reactions, ΔUhyd [kJ/mol] 22.44
Activation energy for Cl diffusion in capillary water, ΔUClDiff [kJ/mol] 17.0
Activation energy for RH diffusion, ΔURHDiff [kJ/mol] 38.9