A New Heat Insulation Shotcrete Mixed with Basalt and Plant Fibers

Table 2

Properties of glazed hollow beads.

Properties	Size (mm)	Unit weight (kg/m^3)	Thermal conductivity (W·(K·m)^−1)	Rate of closed hole (%)	Water absorption (%)
	0.5–1.5	90	0.023–0.045	95	80