ρ_f

f_cu/MPa

f_w/MPa

f_t/MPa

E_c/10⁴ MPa

0.5%

121.1

8.0

4.0

4.0

1%

151.9

10.6

6.0

4.2

1.5%

158.2

12.7

6.3

4.3

2%

164.6

16.8

6.9

4.4