Negative temperature distribution in the chemical solution supplied soils was faster and intense in the 2nd freezing cycle.

Frost heave in the deionised water supplied test was greater, especially in the 2nd freezing cycle.

The maximum frost heave rate was obtained when the freezing speed was 2 cm/day.

Chemical mass transfer was obtained over the entire length of the soil columns at the end of two freeze-thaw cycles.

Salt transport to the freezing front was observed with the ratio 0.10-0.14% of sodium chloride to the dry soil mass.

Concentration of sodium chloride in pore water reached 20,000-30,000 mg/l, which 2-3 times exceeded the supply solution.

Chemical mass transfer is likely to progressively change the freezing regime under the road, hence the soil properties.