Application of Thermal Insulation Gunite Material to the High Geo-Temperature Roadway

Table 4

Range analysis results.

Parameters	Apparent density (kg/m^3)			Thermal conductivity (W/(m·K))			UCS (MPa)
	A	B	C	A	B	C	A	B	C
K1	1367	1520	1377	0.146	0.158	0.131	9.1	9.1	8.5
K2	1353	1403	1467	0.128	0.139	0.155	6.2	8.1	9.4
K3	1517	1313	1393	0.147	0.125	0.135	8.7	6.9	6
Range R	164	207	90	0.019	0.033	0.024	2.9	2.2	3.4
Influence degree	B > A > C			B > C > A			C > A > B
Optimal level	A2	B3	C1	A2	B3	C1	A1	B1	C2
Optimal combination	A2B3C1			A2B3C1			A1B1C2