Research on Dust Suppression Technology of Shotcrete Based on New Spray Equipment and Process Optimization

Table 5

Physical properties of the WT-N1-type nonalkali liquid accelerator.

Appearance	Initial setting time (min)	Final setting time (min)	Solid-containing content (%)	Active component	Mixing amount (%)
Brownish liquid	2-3	7–9	61.4	Aluminum sulfate	4–8