Research Article
Experimental Study on the Durability of Fly Ash-Based Filling Paste in Environments with Different Concentrations of Sulfates
Figure 5
Stress-strain curves of each group for each soaking period: (a) 30 d; (b) 60 d; (c) 90 d; (d) 120 d.
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(b) |
(c) |
(d) |