Effects of Different Conditions of Water Cooling at High Temperature on the Tensile Strength and Split Surface Roughness Characteristics of Hot Dry Rock

Table 3

Test equipment.

Function	Device	Remarks
Weighing	Electronic balance	Error 0.01 g
Heating	SX2-14-13 experimental electric stove	Room temperature to 1250°C
Cooling	JKS automatic alkali aggregate reaction chamber	1–100°C
Achieving constant temperature	101-1 electrothermal blowing dry box	Room temperature to 300°C
Brazilian disc test	YAW-microcomputer controlled electrohydraulic servopressure testing machine	Weighing range 10 t
Roughness measurement	Roughness profilometer	Micrometre (accuracy 0.001 mm)
		Infrared level (accuracy 0.1 mm)
		Infrared range finder (accuracy 0.1 mm)