Influence of Acidic Substances on Compression Deformation Characteristics of Loess

Table 3

The linear fitting equation for the compression index C_c, soaking time, and acid concentration.

Acid soaking time t (d)	Linear fitting equation	R^2	Acid concentration cHCl (mol·L^−1)	Linear fitting equation	R^2
1	Cc = 0.112 + 0.029cHCl	0.926	0 (distilled water)	Cc = 0.156 + 0.013t	0.652
3	Cc = 0.253 + 0.042cHCl	0.894	0.1	Cc = 0.143 + 0.018t	0.858
6	Cc = 0.279 + 0.036cHCl	0.952	0.5	Cc = 0.175 + 0.017t	0.700
9	Cc = 0.291 + 0.037cHCl	0.924	1	Cc = 0.192 + 0.019t	0.741
12	Cc = 0.331 + 0.047cHCl	0.811	2	Cc = 0.206 + 0.019t	0.677
N/A	N/A	N/A	3	Cc = 0.250 + 0.019t	0.778