Experimental Study on Mechanism of Graphene Oxide-Modified Coral Sand Cement Mortar to Resist Sulfate Erosion

Figure 7

Pore characteristics of samples with different GO contents under 30 dry-wet cycles of sulfate erosion. (a, b) The dosage of GO is 0.00%. (c, d) The dosage of GO is 0.03%.

(a)

(b)

(c)

(d)