SPECIAL FEATURES OF PHC PILES
- Spinning will result in high compaction concrete , reduces water - cement ratio so that the concrete strength and durability of the pile will be increased
- Concrete strength Grade 800 will allow the piles to be driven through hard strata.
- With the auto-clave curing system, the piles can be immediately driven after moved to the production line.
- High flexural rigidity.
- Absence of torsional stresses during driving Piles.
- Having high anti-corrosion ability especially for marine environment.
- Manufactured piles have the length up to 18 meters .
- Pile extension is fast, economical and easy process on-site.
- Lightweight structures , reduce the price.
- Stable quality based on industrial production conditions
- Quickly Finished projects because of fast delivery Piles .
- High rate of production ensures early completion of projects.
- Eliminate concrete site work, is a special advantage in urban redevelopment projects.
GENERAL SPECIFICATIONS
+ PRODUCT STANDARD :
SPCC PHC piles comply with JIS A 5337, GB 13476 . Based on the customer requirements
we can add more suitable standards:
- MATERIALS
|
MATERIAL |
STANDARD |
DESCRIPTION |
|
Cement |
TCVN 4033 : 1995 |
Ordinary Portland Cement |
|
Aggregates |
TCVN 6220 : 1997 |
Coarse and Find Aggregates from natural sources |
|
Admixture |
TCVN 325 : 2004 |
Concrete Admixture |
|
Reinforcing bar |
YB/111-1997 |
Hot-rolled tensile Steel Bars |
|
Sprial Wire |
JGJ19-1992 |
Hard Drawn Steel Wire |
|
Joint Plate / End Plate |
Q235 |
Weldable Structural Steels Methods for Tensile Testing of Metals. |
- PROPERTIES OF CONCRETE and PRE-STRESSED STEEL BAR
|
Concrete |
Compressive stregnth |
80.0 Mpa |
|
|
Modulus of Elasticity |
3,29x104 Mpa (cylinder sample - C80) |
|
Prestressing Steel bar |
Tensile Strength |
1,420 |
|
|
Yield Strength |
1,275 Mpa |
|
|
Modulus of Elasticity |
2x105 Mpa |
|
|
Elongation |
≥5% |
+ PILE JOINT :
The joint is designed to be anti-cracking and damaging moment.
+ THE END PLATE :
The end plates of spcc piles with various categories will be supplied depending on the geological layers in order
to comformity with execution requirements at sites.
+ CURING :
Production process with the flexible curing system, according to two modes:
- Curing mode 1 : Common pressure curing(700C – 900C). Piles can be applied after 7 days - R7.
- Curing mode 2 : High pressure curing(1800C - 2000C). After common pressure curing stage, piles will be increased concrete intensity into auto-clave chambers. And can be applied immediately – R 1 day = R 28 days.
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