Table 5 Samples dimensions, fracture loads and details of calculating the KIc for each group of samples.

From: Impact of propylene fibers and industrial wastewater on the properties of self-compacting concrete

Code

No

a

mm

w (mm)

a/w

t (mm)

S (mm)

Fracture load (Pf) (N)

\({\sigma }_{N}\) (MPa)

\({K}_{I}^{*}\)

KIc (MPa)

Ave. KIc (MPa)

0.5-C400

1

23

100

0.23

100

250

9756

3.65850

0.3405

0.9874

0.880

2

25

100

0.25

100

250

8222

3.08325

0.3161

0.7725

 

0.5-C400-PP0.1%-6 mm

1

24

100

0.24

100

250

6868.2

2.57558

0.3283

0.6702

0.611

2

27

100

0.27

100

250

6356

2.38350

0.2917

0.5511

 

0.5-C400-PP0.2%-6 mm

1

25

100

0.25

100

250

7467.9

2.80046

0.3161

0.7017

0.705

2

25

100

0.25

100

250

7532.1

2.82454

0.3161

0.7077

 

0.5-C400-PP0.1%-12 mm

1

25

100

0.25

100

250

7604

2.85150

0.3161

0.7145

0.679

2

25

100

0.25

100

250

6857

2.57138

0.3161

0.6443

 

0.5-C400-IWW

1

24

100

0.24

100

250

6375

2.39063

0.3283

0.6221

0.619

2

25

100

0.25

100

250

6559.2

2.45970

0.3161

0.6163

 

0.5-C400-PP0.1%-6 mm-IWW

1

27

100

0.27

100

250

6522.4

2.44590

0.2917

0.5655

0.537

2

25

100

0.25

100

250

5411.4

2.02928

0.3161

0.5085

 

0.5-C400-PP0.1%-6 mm-IWW-SF

1

26

100

0.26

100

250

6699

2.51213

0.3039

0.6051

0.550

2

24

100

0.24

100

250

5065

1.89938

0.3283

0.4943

 

0.36-C440

1

25

100

0.25

100

250

7942.4

2.97840

0.3161

0.7463

0.723

2

26

100

0.26

100

250

7747.4

2.90528

0.3039

0.6999

 

0.36-C440-PP0.18/1035%-6 mm

1

26

100

0.26

100

250

6919.7

2.59489

0.3039

0.6251

0.562

2

27

100

0.27

100

250

5764.6

2.16173

0.2917

0.4998

 

0.36-C440-PP0.1%-12 mm

1

27

100

0.27

100

250

7894.6

2.96048

0.2917

0.6845

0.653

2

26

100

0.26

100

250

6875.6

2.57835

0.3039

0.6211

 

0.36-C440-IWW

1

26

100

0.26

100

250

5728.8

2.14830

0.3039

0.5175

0.574

2

24

100

0.24

100

250

6459.9

2.42246

0.3283

0.6304

 

0.36-C440-PP0.1%-6 mm-IWW

1

25

100

0.25

100

250

6047.9

2.26796

0.3161

0.5683

0.530

2

26

100

0.26

100

250

5451.9

2.04446

0.3039

0.4925

 

0.36-C440-PP0.1%-6 mm-IWW-SF

1

25

100

0.25

100

250

6445.2

2.41695

0.3161

0.6056

0.582

2

26

100

0.26

100

250

6187.7

2.32039

0.3039

0.5590