Table 5 Analysis of the orthogonal experiments.
From: Tensile and Fracture Properties of Silicon Carbide Whisker-Modified Cement-Based Materials
Parameter group number | Factor | Dispersion rate (%) | |||
|---|---|---|---|---|---|
Dosage of water reducer (%) A | Magnetic stirring time (min) B | Ultrasonic dispersion time (min) C | pH D | ||
1 | 0.3 | 5 | 1 | 7 | 78.1 |
2 | 0.3 | 10 | 2 | 9 | 82.7 |
3 | 0.3 | 15 | 4 | 11 | 89.7 |
4 | 0.4 | 5 | 2 | 11 | 80.6 |
5 | 0.4 | 10 | 4 | 7 | 77.5 |
6 | 0.4 | 15 | 1 | 9 | 77.4 |
7 | 0.5 | 5 | 4 | 9 | 77.7 |
8 | 0.5 | 10 | 1 | 11 | 84.5 |
9 | 0.5 | 15 | 2 | 7 | 81.3 |
\(K_{1}\) | 250.5 | 236.4 | 240 | 236.9 | Â |
\(K_{2}\) | 235.5 | 244.7 | 244.6 | 237.8 | Â |
\(K_{3}\) | 243.5 | 248.4 | 244.9 | 254.8 | Â |
\(k_{1}\) | 83.50 | 78.80 | 80.00 | 78.97 | Â |
\(k_{2}\) | 78.50 | 81.57 | 81.53 | 79.27 | Â |
\(k_{3}\) | 81.17 | 82.80 | 81.63 | 84.93 | Â |
R | 5 | 4 | 1.63 | 5.97 | Â |
The primary and secondary subsequence | D > A > B > C | ||||
Optimal level | \(A_{1}\) | \(B_{3}\) | \(C_{3}\) | \(D_{3}\) | Â |
Optimal condition | \(A_{1} B_{3} C_{3} D_{3}\) | ||||