Reinforced Piles

Concrete is poor in tension, yet excels in compression. Combining concrete with the added beneficial characteristics of steel provides the ultimate composite that excels in both tension and compression. With the usage of high strength cement and high tensile steel, METRIC Reinforced concrete piles have excellent tensile strength and compressive strength. These attributes allow our piles to be significantly more durable during transportation, pitching and driving. METRIC reinforced concrete piles bring a peace of mind to our ever growing list of satisfied customers.

Prestressed Piles

The use of prestressing technology creates even, constant compression throughout the pile. The tensile stresses caused by the action of stress waves when driving is reduced by the prestress. The reduction of tensile cracks gives greater durability to the pile, particularly if the pile is submerged. The piles are better able to resist, without cracking, any tensile forces set up by the working loads, whether direct or due to bending, or by accidental loads .Prestressing also reduces lateral tensile cracks that may occur during handling or transportation. Moreover, METRIC prestressed piles are made with high strength concrete. Furthermore, less reinforcement is required to achieve similar structural capacity compared to normally reinforced piles. With prestressed piles, a more economical foundation design can be utilized with greater flexibility.

Benefits and Advantages

High Load bearing capacity

With the Application of high compressive strength concrete, METRIC piles allow higher load capacity for more economical design of foundation system.

Strong Pile joints

End plates which are designed for filler welding offer a more reliable joint than conventional piles

High Durability

As a result of high strength concrete, METRIC piles has higher resistant in corrosive soil.

Specifications

METRIC piles are factory manufactured to MS ISO 9001:2008 Quality Management System: Manufacture of Concrete Piles (Prestressed and Reinforced)

Standards


Cement

MS 552

Ordinary Portland Cement (OPC)

Aggregates

BS 882

Washed mining sand, 20mm granite

Prestressing Strands

BS 5896

Longitudinal indented prestress wires

High Tensile Steel

MS 146

Longitudinal reinforcement bars

Lateral Reinforcement (Links)

MS 144

Hard Drawn Wires

End Plates

BS 4360

Mild Steel Joints

Admixtures

BS 5075

Superplasticizer

Characteristic Strengths of Materials

 

Concrete

Prestressed Piles

At transfer

35N/mm2

Specified 28 day strength

60N/ mm2

Normally reinforced Piles

Specified 28 day strength

45N/ mm2

Longitudinal Reinforcement

Prestressing wires

Tensile Strength

1670N/ mm2

High Tensile Steel

Yield Strength

460N/ mm2

Hard Drawn Wires

Yield Strength

600N/ mm2

Specification

Pile size (mm)

Pile Dimensions (mm)

Available length (m)

Weight (kg/m)

Link (mm)

End plate (mm)

A

B

C

Size (mm)

Spacing P1

X1

Spacing P2

X2

Thickness

Reinf.

Dowel Length

125

128

122

125

6.3

38

4

40

625

<100

4750

6

4 Y 8

400

150

153

147

150

6.3

54

4

40

750

<100

4500

6

4 Y 9

400

200

204

197

200

6.3

96

4

35

1000

<100

4000

6

4 Y12

400

Table 1: Prestressed Concrete Pile and End Plate Dimensions

Pile Size
(mm)

Product Code

Pile Type

Min. Concrete Strength (N/mm2)

Main Reinforcement nos/diameter

Pile Weight (kg/m)

Maximum Structural Capacity (tones)

Recommended Working Loads (tones)

125

PCS-1

Prestressed

60

4 P 4

38

22

18

150

P1

Prestressed

60

4 P 5

54

32

25

200

P1

Prestressed

60

8 P 5

96

55

45

Table 1(a) :Prestressed Concrete Pile Specification and Load Capacity

 

Pile Size
(mm )

Pile Dimensions (mm)

 

Available
length
(m)

Link (mm)

End plate (mm)

A

B

C

Size (mm)

Spacing P1

X1

Spacing P2

X2

Thickness

Reinf.

Dowel Length

3

6

9

12

125

128

122

125

o

o

 

 

4.5

50

375

62

varies

6

4 Y 8

400

150

153

147

150

o

o

 

 

4.5

50

450

75

varies

6

4 Y 9

400

175

178

172

175

o

o

 

 

4.5

40

525

87

varies

6

4 Y 10

400

200

204

197

200

o

o

 

 

4.5

35

600

100

varies

6

4 Y 12

400

250

255

245

250

o

o

o

o

5

35

750

100

varies

6

8 Y 10

400

300

305

295

300

o

o

o

o

6

45

900

140

varies

6

4 Y 16

400

 

 

Table 2:Reinforced Concrete Pile and End Plate Dimensions

 

Pile Size
(mm)

Product Code

Pile Type

Min. Concrete Strength (N/mm2)

Main Reinforcement nos/diameter

Pile Weight (kg/m)

Maximum Structural Capacity (tones)

Recommended Working Loads (tones)

125

RCS-1

Reinforced

45

4 Y 4

38

22

18

150

R1

Reinforced

45

4 Y 9

54

32

25

150

R2

Reinforced

45

4 Y 8

54

31

23

175

R1

Reinforced

45

4 Y 10

74

43

35

175

R2

Reinforced

45

4 Y 9

74

42

32

200

R1

Reinforced

45

4 Y 12

96

57

45

200

R2

Reinforced

45

4 Y 10

96

55

43

250

S

Reinforced

45

8 Y 10

-

88

70

300

S

Reinforced

45

4 Y 16

-

125

100

Table 2(a): Reinforced Concrete Pile Specification and Load Capacity

 

JKR specification

Pile Size
(mm )

Pile Dimensions (mm)

Available
length
(m)

Link (mm)

A

B

C

Size (mm)

Spacing P1

X

Spacing P2

Y

Spacing
P3

Z

3

6

9

12

150

153

147

150

o

o

 

 

4

40

750

40

750

100

varies

200

204

197

200

o

o

 

 

6

65

600

72

600

80

varies

250

255

245

250

o

o

o

o

6

55

750

63

750

70

varies

300

305

295

300

o

o

o

o

6

50

900

58

900

65

varies

 

 

 

 

 

Table 3:JKR Reinforced Concrete Pile and Dimensions


Pile Size
(mm)

Product Code

Pile Type

Min. Concrete Strength (N/mm2)

Main Reinforcement nos/diameter

Maximum Structural Capacity (tones)

Recommended Working Loads (tones)

150

R2

Reinforced

45

4 Y 10 (1.39%)

34

25

200

R2

Reinforced

45

4 Y 12  (1.13%)

58

45

250

S

Reinforced

45

4 Y 16 (1.25%)

93

77

300

S

Reinforced

45

4 Y 20 (1.35%)

129

108

Table 3(a):JKR Reinforced Concrete Pile Specification and Load Capacity

 

Types of Pile Shoe

Accodring to JKR, there are 5 different types of pile shoe. These 5 types are shown as below.

Oslo Pointed Shoe (aka Rock Shoe) Specification

 

Air hole size and type may vary depending on pile size.

X (mm)

A (mm)

B (mm)

C (mm)

D (mm)

E (mm)

F (mm)

J (mm)

K (mm)

L (mm)

150

40

50

75

6

50

10

400

8

5

175

40

50

90

6

50

10

400

8

5

200

40

50

90

6

50

12

500

8

5

250

40

50

130

9

75

16

600

8

5

300

40

50

130

12

75

16

500

12

5

 

 

Previous Page : Introduction, Benefits & Advantages, Piling Methods