Table 3 Descriptions and statistics of features.
Features | Symbol | Data type | Units | Mean | Min | Max | STD | |
|---|---|---|---|---|---|---|---|---|
Mix design parameters | Type (Paste, mortar or concrete) | Type | C | – | – | – | – | – |
W/C(B) ratio | W/C(B) | N | – | 0.45 | 0.18 | 0.82 | 0.10 | |
Cement type | CT | C | – | – | – | – | – | |
Dosage of cement | C | N | – | 0.55 | 0.10 | 0.90 | 0.13 | |
Dosage of calcined clay | CC | N | – | 0.27 | 0.05 | 0.60 | 0.10 | |
Dosage of limestone | L | N | – | 0.17 | 0.03 | 0.80 | 0.11 | |
Dosage of gypsum | G | N | – | 0.02 | 0 | 0.14 | 0.02 | |
Sand-to-binder ratio | S/B | N | – | 2.07 | 0 | 4.24 | 1.12 | |
Sand-to-aggregate mass ratio | S/A | N | – | 0.78 | 0 | 1.00 | 0.38 | |
Aggregate-to-paste volume ratio | A/P | N | – | 1.20 | 0 | 5.11 | 0.75 | |
Calcined clay parameters | Calcined clay size (D50) | CC(D50) | N | mm | 12.15 | 1.50 | 69.35 | 9.94 |
Kaolinite content of raw clay | K_RC | N | % | 0.52 | 0.00 | 0.99 | 0.24 | |
Calcined temperature | CTemp | N | ℃ | 807.95 | 550 | 1000 | 64.89 | |
SiO2 content of calcined clay | SiO2_CC | N | % | 0.55 | 0.01 | 0.97 | 0.10 | |
Al2O3 content of calcined clay | Al2O3_CC | N | % | 0.33 | 0.00 | 0.55 | 0.10 | |
Limestone parameters | Limestone size (D50) | L(D50) | N | mm | 25.54 | 2.34 | 314 | 69.08 |
CaO content for limestone powder | CaO_L | N | % | 0.48 | 0.00 | 1.83 | 0.34 | |
Curing parameters | Curing temperature | CurTemp | N | ℃ | 22.34 | 20 | 30 | 2.76 |
Relative humidity | RH | 0.96 | 0.50 | 1.00 | 0.10 | |||
Target features | 28-day compressive strength | Strength | N | MPa | 48.17 | 5.10 | 135.00 | 21.14 |
Cost | Cost | N | $/m3 | 98.80 | 66.86 | 165.18 | 13.38 | |
Embodied carbon | EC | N | kg CO2 /m3 | 422.49 | 175.02 | 1287.30 | 187.72 |
