Concrete Experience

Type Single Wire

Nominal Diameter (mm)

Cross section (mm²)

Mass
(g/m)

Strength (Mpa)

Total load at 1% typical (KN)

Total load at 1% typical (KN)

4

4

12.6

98.1

1860

20.6

23,4

5

5

19.6

153.3

1860

32.1

36.5

7

7

38.5

300.7

1770

60

68,1

Type Multi Wire

Nominal Diameter (mm)

Cross section (mm²)

Mass
(g/m)

Strength (Mpa)

Total load at 2% typical (KN)

Total load at 1% typical (KN)

2x2.25

4.50

7.95

62,5

1860

13.2

14,7

3x2.25

4.90

11.90

94

1860

19.8

22.1

3x3

6.50

21.20

167

1860

35.48

39,4

Type Strands

Nominal Diameter (mm)

Cross section (mm²)

Mass
(g/m)

Strength (Mpa)

Total load at 2% typical (KN)

Total load at 1% typical (KN)

 

7,9

38

300

1860

65.1

72.5

 

9.3

52

408

1860

86.8

96.7

 

55

55

432

1860

91.9

102

 

12.5

93

730

1860

155

173

 

12.9

100

785

1860

167

186

 

15.2

139

1090

1860

233

269

 

15.8

150

1180

1860

250

279

Steel wires or strands reinforcement used for the production of reinforced prestressed concrete elements must have a high tensile strength. They can be single wires or 2-3 or 7 wire strands.

The most commonly used wire for flooring elements is the steel strand type because it has the highest adherence coefficient to concrete.

The maximum strength of the strands is between 140-190 kg/mm2.
The tension applied to the wires before concrete casting is approximately 60-70% of the breaking point of the wires.

Wire is packaged in rolls of up to 3000 Kg with the following dimensions:

Type

Bobbin weight
(kg)

External dia. (mm)

Internal dia. (mm)

Width:
(mm)

Single Wire

Single Wire

700-1300

2000-2100

1600

300-400

Multi Wire

Multi Wire

1800-2200

1400

750

700

Strands

Strands

3000

1450

900

750

The size of the coils can be customized according to customer requirements and upon request, be packed with Kraft paper for shipment by sea.

For building safety it is necessary for the steel reinforcements to be:

1) completely free of any defects either made during manufacture, transportation or pre-tensioning;
2) of a strength neither too brittle nor too ductile;
3) fully protected from rust and corrosion both before and after the laying down.

1) completely free of any defects either made during manufacture, transportation or pre-tensioning;2) of a strength neither too brittle nor too ductile;3) fully protected from rust and corrosion both before and after the laying down.