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Table 8 strain at peak stress database.

From: Mix Design and Properties of Recycled Aggregate Concretes: Applicability of Eurocode 2

Author

Nature of aggregates

Test conditions

Compressive strength (MPa)

Strain at peak stress

Belén et al. (2011)

Natural

Controlled strain rate 16 µε/s

44.8

0.00190

31.9

0.00174

80 % natural + 20 % recycled

43.7

0.00189

31.7

0.00199

50 % natural + 50 % recycled

37.5

0.0019

32.4

0.00195

Recycled

40.5

0.00219

30.1

0.00216

Martínez-Lage et al. (2012)

Natural

Controlled strain rate 16 µε/s

30.5

0.0021

50 % natural + 50 % recycled

26.8

0.0023

Recycled

20.4

0.0025

Wee et al. (1996)

Natural

Strain rate 0.07 mm/min

63.2

0.00216

70.2

0.0021

65.1

0.00216

70.5

0.00206

69.7

0.00212

71.5

0.00213

63.6

0.00228

85.9

0.00226

90.2

0.00243

78.3

0.00232

85.9

0.00231

81.2

0.00224

88.1

0.00227

81.6

0.00211

82.6

0.00216

84.8

0.00252

85.6

0.00232

96.2

0.00237

73.9

0.00243

87.6

0.00243

93.1

0.00244

95.3

0.00242

100.6

0.00258

102.1

0.00256

102.8

0.00247

106.3

0.00251

104.2

0.00249

92.8

0.00242

94.6

0.00228

96.6

0.00232

91.5

0.00228

93.6

0.00219

91.7

0.00266

119.9

0.00275

125.6

0.00273

Dhonde et al. (2007)

Natural

Stress rate 0.25 MPa/s

31.2

0.00147

38.5

0.00178

50.5

0.00194

77.6

0.00191

Praveen et al. (2004)

Natural

Not communicated

36.7

0.002

54.6

0.0023

70.8

0.0025

Ali et al. (1990)

Natural

Not communicated

16.7

0.0018

25.3

0.0021

27.7

0.0021

32.0

0.0022

43.5

0.0022

Prasad et al. (2009)

Natural

Strain rate

23.3

0.00197

39.6

0.00235

Suresh Babu et al. (2008)

Natural

Strain rate

25.0

0.001905

31.0

0.00207

31.5

0.00209

25.8

0.00199

28.0

0.00203

Carreira and Chu (1985)

Natural

Not communicated

20.7

0.0018

30.5

0.0018

49.5

0.00195

Carreira and Chu (1985)

Natural

Not communicated

10.7

0.0015

20.0

0.0019

34.8

0.0022

46.9

0.0021

52.4

0.00195