Table 2 Comprehensive statistics for both testing and training data related to TS-BPC.
Statistic | Gravel | Sand | Silty clay | Cement | Bentonite | Water | Curing time | Tensile strength |
|---|---|---|---|---|---|---|---|---|
Training data: 80 | ||||||||
Minimum | 295 | 590 | 0 | 50 | 18 | 152.1 | 28 | 0.06 |
Maximum | 875 | 1305 | 350 | 252 | 320 | 500 | 180 | 1.3 |
Mean | 625.9 | 851.8 | 144.5 | 142.2 | 69.7 | 351.5 | 59.2 | 0.3 |
Median | 673.5 | 775 | 180 | 130 | 58 | 370 | 28 | 0.2 |
Standard deviation | 192.5 | 253.5 | 109.4 | 45.2 | 43.9 | 78.6 | 38.6 | 0.2 |
Variance | 37072.2 | 64308.6 | 11973.8 | 2043.6 | 1927.8 | 6191.2 | 1492.5 | 0.07 |
Skewness | −0.7 | 1 | −0.3 | 0.7 | 2.7 | −1 | 1.1 | 1.4 |
Kurtosis | −0.7 | −0.5 | −1.3 | 0.3 | 12.5 | 0.6 | 1.2 | 1.7 |
Testing data: 35 | ||||||||
Minimum | 295 | 524 | 0 | 72 | 18 | 152.1 | 28 | 0.08 |
Maximum | 875 | 1305 | 380 | 224 | 168 | 481.4 | 90 | 1 |
Mean | 670.8 | 816.9 | 144 | 132.9 | 67.3 | 328.4 | 59.8 | 0.4 |
Median | 710 | 766 | 180 | 120 | 70 | 340.4 | 90 | 0.3 |
Standard deviation | 184.6 | 237.8 | 123 | 34.6 | 37 | 78.3 | 31.4 | 0.2 |
Variance | 34082.4 | 56593.8 | 15137.9 | 1201.2 | 1374.3 | 6142.7 | 988.4 | 0.07 |
Skewness | −1.1 | 1.2 | 0.05 | 1.1 | 1.2 | −0.4 | −0.05 | 0.6 |
Kurtosis | 0.1 | 0.3 | − 0.1.1 | 1 | 1.6 | −0.3 | −2.1 | −1 |