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Heritage Science

 Table 4 Phases of deterioration

From: Clustering analysis of acoustic emission signals in the monitoring of stone monuments: case of the freeze‒thaw deterioration of tuffs

Phases of deterioration

Exposed cycles

CD-FT-1

CD-FT-2

CD-FT-3

I

–

0–30

II

0–50

31–56

III

51–78

57–62

IV

79–90

63–90

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