Development of a New Type of Green Switch Air Entraining Agent for Wet-Mix Shotcrete and Its Engineering Application

Table 5

The shootability comparison of different wet-mix shotcretes.

Number	Average rebound rate/%	Depth of one shotcrete layer/mm	28 d compressive strength (MPa)
1	15.3	15.2	28.6
2	16.8	11.7	24.3
3	13.7	16.5	27.9