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Table 8 Parameters of old concrete at different temperatures.

From: Experimental Study on Damage Evaluation, Pore Structure and Impact Tensile Behavior of 10-Year-Old Concrete Cores After Exposure to High Temperatures

T (°C)

D1

D2

p (%)

rc (nm)

rt (nm)

D

20

2.001

2.985

13.96

89

181

0

200

1.791

2.980

15.77

97

200

0.57

400

1.189

2.961

19.17

99

214

0.88

600

1.402

2.949

20.22

104

330

0.95

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