Study on Modification of Alkali-Free Liquid Accelerator of Mine-Used Wet-Mix Shotcrete

Table 3

Performance parameters.

Nonvolatile matter (%)	Ash (%)	Average size (μm)	50% viscosity of water solution (Pa·s)	pH value	Appearance
≥98.0	8–12	85 ± 15	2.0–5.0	5–8	White powder