Research Article

Strength and Expansion and Deformation Characteristics of Modified Expansive Soil by Octadecylamine

Table 5

Fitting results.

FunctionValueCorrelation coefficient

Internal friction anglea = 320.999
b = 0.620.996
c = 12.960.999
Cohesiond = −570670.932
f = 126.27

x is octadecylamine content.