Table 5.
Constitutive equations and variables for the model. Data for mortars with w/c = 0.30 and w/c = 0.45 is provided.
| Eq. number | Variable | w/c=0.30 | w/c=0.45 | Source | ||
|---|---|---|---|---|---|---|
| Maturity equation and equivalent time | ||||||
|
| ||||||
| Tr | 23°C | 23°C | [11] | |||
| αu | 0.50 | 0.69 | [11] | |||
| τ | 10.09 h | 12.75 h | [11] | |||
| β | 0.98 | 0.898 | [11] | |||
| E | For 23 °C 32800 (J/mol) | For 23 °C 27400 (J/mol) | [16] [6] | |||
| For 60 °C 25700 (J/mol) | For 60 °C 27400 (J/mol) | |||||
|
| ||||||
| Mass conservation equation | ||||||
|
| ||||||
| Dv | 0.0155 g/(m*d) | 0.0004 g/(m*d) | [27] | |||
| (11) | Dl = | b exp(cw) | b exp(cw) | [27] | ||
| b=0.0055 | b=0.0033 | |||||
| c= 144 | c= 155 | |||||
| ρs | 2390 kg/m3 | 2304 kg/m3 | [16] | |||
| wn | 0.23055 g water/g cement | [17] | ||||
|
|
0.271 | 0.229 | [11] | |||
|
| ||||||
| Heat conservation equation | ||||||
|
| ||||||
| k | 2.9 W/(m·K) | 2.8 W/(m·K) | [16] | |||
| (12) |
|
|
[21] | |||
| (13) | λvap | λvap=2500000+1859TJ/(kg·K) | [6] | |||
| hm | 5×10-3 g/(m2·h) | 10×10-3 g/(m2·h) | [20] | |||
| hc | 36 W/(m2·K) | [20] | ||||