Study on the Factors Influencing on Wetting Performance of Blasting Dust in a Limestone Mine

Figure 2

Contact angles of water on the surface of MD and ND at the beginning and the ending of the test.

(a) Contact angle of water on MD surface at 0 s

(b) Contact angle of water on MD surface at 0.8 s

(c) Contact angle of water on ND surface at 0 s

(d) Contact angle of water on ND surface at 0.8 s