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Advances in Materials Science and Engineering
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2013
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Article
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Fig 5
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Research Article
Average Fracture Energy for Crack Propagation in Postfire Concrete
Figure 5
Fracture surfaces of postfire specimens.
(a)
Fracture surface of 20°C
(b)
Fracture surface of 600°C
(c)
Fracture surfaces at typical temperatures (20°C, 200°C, 350°C, 450°C, and 600°C)