Contact Resistance between Calcareous Sand and Electrodes Based on the Two-Electrode Method

Table 1

Physical properties of calcareous sand.

Particle size (mm)	Specific gravity	Maximum dry density (g·cm^-3)	Minimum dry density (g·cm^-3)
1-1.5	2.74	1.35	1.15
1.5-2	2.73	1.33	1.13
2-2.5	2.71	1.30	1.11