An Experimental Study on the Reinforcement of Silt with Permeable Polyurethane by Penetration Grouting

Table 3

Sample element composition.

Element	Quality percentage
	Untreated soil	0.1 MPa	0.2 MPa	0.3 MPa	0.4 MPa	Polyurethane
C	12.67	27.72	31.64	36.82	38.79	71.58
O	46.74	42.96	42.37	41.17	38.23	28.42
Si	12.04	7.72	8.74	6.38	7.75