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Table 16.22. Mean values (±St. Dev.) of the friction coefficient µ of triticale grain variety Fidelio at
the moisture content of 10-20% against stainless steel, galvanized steel and concrete B30 determined
at the normal pressure of 0.5-2.5 kPa
Moisture
content (%)
10
12.5
15
17.5
20
Normal stress
(kPa)
0.5
1.0
1.5
2.1
2.5
0.5
1.0
1.5
2.1
2.5
0.5
1.0
1.5
2.1
2.5
0.5
1.0
1.5
2.1
2.5
0.5
1.0
1.5
2.1
2.5
Coefficient of friction µ
Stainless steel Galvanized steel Concrete B30
0.252 ± 0.005 0.216 ± 0.008 0.354 ± 0.005
0.261 ± 0.005 0.224 ± 0.001 0.317 ± 0.010
0.273 ± 0.005 0.219 ± 0.005 0.369 ± 0.020
0.281 ± 0.005 0.210 ± 0.005 0.366 ± 0.025
0.278 ± 0.005 0.213 ± 0.005 0.325 ± 0.029
0.255 ± 0.005 0.227 ± 0.005 0.387 ± 0.003
0.258 ± 0.009 0.230 ± 0.005 0.385 ± 0.026
0.252 ± 0.005 0.213 ± 0.005 0.388 ± 0.011
0.252 ± 0.005 0.221 ± 0.005 0.373 ± 0.028
0.238 ± 0.005 0.219 ± 0.010 0.382 ± 0.006
0.293 ± 0.009 0.243 ± 0.004 0.428 ± 0.015
0.311 ± 0.001 0.230 ± 0.005 0.385 ± 0.019
0.314 ± 0.005 0.238 ± 0.005 0.428 ± 0.015
0.308 ± 0.005 0.238 ± 0.005 0.434 ± 0.010
0.293 ± 0.009 0.247 ± 0.005 0.408 ± 0.006
0.388 ± 0.006 0.311 ± 0.000 0.472 ± 0.012
0.361 ± 0.012 0.314 ± 0.005 0.472 ± 0.012
0.344 ± 0.005 0.320 ± 0.009 0.435 ± 0.017
0.360 ± 0.005 0.329 ± 0.001 0.455 ± 0.010
0.369 ± 0.005 0.317 ± 0.010 0.445 ± 0.010
0.445 ± 0.020 0.411 ± 0.006 0.525 ± 0.006
0.458 ± 0.016 0.392 ± 0.006 0.527 ± 0.006
0.487 ± 0.001 0.418 ± 0.006 0.519 ± 0.011
0.472 ± 0.012 0.401 ± 0.006 0.479 ± 0.006
0.451 ± 0.006 0.395 ± 0.001 0.472 ± 0.006