Study on Antiweathering Support Technology of Thin Spray-On Liners in Shallowly Buried Coal Seam Roadway under Corrosion Condition

Figure 3

Mineral composition ratio of rock specimens. (a) Specimen 1 mineral composition. (b) Specimen 2 mineral composition. (c) Specimen 3 mineral composition.

(a)

(b)

(c)