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

Table 2

Contact resistance test scheme with an electrode spacing of 5 cm (1-1.5 mm).

Particle size (mm)	Relative density	Saturation (%)	Mass of calcareous sand (g)	Water content (%)
1-1.5	0.3	20	180.52	9.3
		40		18.6
		60		28.0
		80		37.3
		100		46.6
	0.6	20	189.33	8.5
		40		17.1
		60		25.6
		80		34.2
		100		42.7
	0.9	20	199.04	7.8
		40		15.5
		60		23.3
		80		31.1
		100		38.9