Table 1 Basic physical property indexes.

From: Experimental and numerical study on the Frost-Heaving characteristics of subgrade soil in the Qinghai-Tibet plateau

Physical property index

Symbol

Unit

Value

Test method

Particle density

\({\rho _s}\)

g/cm³

2.69

Pycnometer method

Liquid limit

\({w_L}\)

%

23.6

Cone penetrometer method

Plastic limit

\({w_P}\)

%

13.5

Rolling thread method

Plasticity index

\({I_P}\)

/

10.1

\({I_P}={w_L} - {w_P}\)