Experiments on Reducing Negative Skin Friction of Piles

Table 6

Reduction rate of average friction coefficient.

Moisture content (%)	Reduction rate of average friction coefficient (%)
	Paraffin-oil mixture	Polymer nanomaterial	Paint
13	67.14	24.29	12.86
15	58.57	27.14	21.43
17	61.43	44.29	54.29
19	67.14	64.29	64.29
21	78.57	81.43	68.57