A New Heat Insulation Shotcrete Mixed with Basalt and Plant Fibers

Table 3

Properties of ceramsite and pottery sand.

Categories	Properties
	Grain composition (mm)	Unit weight (kg/m^3)	Cylinder compressive strength (MPa)	Water absorption (%)	Thermal conductivity (W·(K·m)^−1)	Porosity (%)	Sediment percentage (%)
Ceramsite	≤10	600	≥3	≤16	≤0.52	≥37	≤2
Pottery sand	≤3	510	≥2	≤12	≤0.45	≥43	≤1.2