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International Journal of Concrete Structures and Materials

Table 5 Nominal concrete strengths and identified unknown parameters.

From: On the Evaluation of Prestress Loss in PRC Beams by Means of Dynamic Techniques

Experimental tests

\(f_{c,28}\)

\(f_{c,iden}\)

\(\varepsilon _{sh}\)

a

 

(MPa)

(MPa)

(\(\permil \))

 

Saiidi et al. (1994)

20.3

27.8

0.0911

7716

Kim et al. (2010)

23.6

24.3

0.0551

5015

Zhang and Li (2007)

37.5\(^\mathrm{a}\)

43.1

0.0698

5925

Jang et al. (2010)

35.0

35.2

0.0692

6774

  1. \(^\mathrm{a}\)28-day cube strength equal to 45.2 MPa.
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