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Table 3 Results of P-wave velocity and water absorption coefficient test

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

Exposed

F‒T

cycles

CD-FT-1

CD-FT-2

CD-FT-3

P-wave velocity (m/s)

capillary water absorption coefficient

(kg/m2/h0.5)

P-wave velocity (m/s)

capillary water absorption coefficient

(kg/m2/h0.5)

P-wave velocity (m/s)

capillary water absorption coefficient

(kg/m2/h0.5)

μ

σ

μ

σ

μ

σ

μ

σ

μ

σ

μ

σ

0

1420.3

134.9

1166.1

106.4

2.06

1430.1

141.2

1168.6

100.4

2.14

1360.6

122.2

1385.1

103.1

2.93

5

1315.0

103.4

1196.3

197.2

1.96

1344.0

149.7

1138.5

165.3

2.21

1268.3

22.2

1352.3

127.5

2.86

10

1284.7

22.9

1200.9

196.3

1.94

1319.9

99.8

1146.6

143.6

2.08

1267.6

24.3

1350.3

121.2

2.84

20

1295.6

17.5

1207.7

190.3

1.94

1316.9

92.9

1130.9

164.7

2.03

1258.6

21.6

1348.0

125.5

2.68

30

1298.2

16.9

1214.8

187.8

1.98

1328.8

100.5

1137.8

166.4

2.03

1271.3

14.2

1348.1

127.1

2.82

50

1296.7

15.7

1200.0

189.9

2.13

1299.8

122.1

1087.1

194.3

2.08

1249.0

27.7

1266.4

187.7

3.27

70

1123.3

124.6

1095.7

285.4

 

1101.8

364.8

912.0

292.4

      

72

1131.3

133.4

1066.4

278.3

 

1087.0

333.1

869.9

298.0

      

75

1045.1

241.7

1050.1

268.6

 

1025.4

279.8

853.5

288.8

      

78

1018.0

293.8

987.2

286.7

 

1065.8

313.8

820.4

306.0

      

85

1024.3

299.8

968.0

294.1

 

1040.6

325.9

678.0

436.4