A SHORT INTRODUCTION ON SLIP-FORMING
Slip-forming, continuous poured, continuously formed, or slipform construction is a construction method in which concrete is poured into a continuously moving form. Slip-forming is used for tall structures (such as bridges, towers, buildings, and dams), as well as horizontal structures, such as roadways. Slip-forming enables continuous, non-interrupted, cast-in-place "flawless" (i.e. no joints) concrete structures which have superior performance characteristics to piecewise construction using discrete form elements. Slip-forming relies on the quick-setting properties of concrete, and requires a balance between quick-setting capacity and workability. Concrete needs to be workable enough to be placed into the form and consolidated (via vibration), yet quick-setting enough to emerge from the form with strength. This strength is needed because the freshly set concrete must not only permit the form to "slip" by the concrete without disturbing it, but also support the pressure of the new concrete as well as resist collapse caused by the vibration of the compaction machinery.
|Concrete pouring|| |
Can use almost any concrete category on the market, if pouring as layers and slumps should be between 4-5 inches.
|Steelreinforcement tying || Tie rod under yoke legs, tied/fastened with the vertical rod and must continuously be performed during the concrete pouring process |
|Maintain vertical line || Able to be controlled with an expert at hand to conduct standard work. |
|Finishing || Modern construction methods using slipforms requires finishing of the concrete by using a sponge and water hose to tidy up the surface |
The best method for curing can be achieved by sprinkling water over the surface after the concrete pouring or spraying a film-coat which will form
a curing membrane over the concrete surface and also by covering the work with a Hessian wrap and then keeping the Hessian wet.
|ADVANTAGES OF SLIPFORM SYSTEMS|
|Saves construction time|| |
It is the fastest method of constructing vertical structures. Resulting in reduced construction periods of about 3 days for each floor.
|Cost saving|| |
Reduced labour costs and decreases the risk of overdue fees because the job is completed in an ample amount of time.
|No construction limits|| |
Due to the continuous operation of Slipform it is suitable for most wall layouts especially silos, tank structures and extra high floor construction.
Water retaining structures and nuclear structures will also greatly benefit from these features of Slipform construction.
The method can now be applied with benefits to a broad range of structures of varying complexitysuch as silos, tanks, lifts and so forth.
Slipform systems can be adapted to accommodate any type of specific requirements. Special forms can be fabricated for particular
project requirements. Steelformer Co., Ltd. is the most experienced in this field and we guarantee we can meet any of our customers
Can use almost concrete category in market,pouring
as layer and slump should be between 4-5inches.
STEEL REINFORCEMENT TYING
Tie rod under yoke legs, tie with the vertical one
and must Continuously perform during the concrete
MAINTAIN VERTICAL LINE
Able to control by expert to make standard work
Modern construction using slipforms requires finishing of the concrete by use sponge to neat.
Good curing can be achieved by sprinkle water after concrete pouring or spraying a film-forming curing membrane over the concrete surface and covering the work with Hessian and then keeping the Hessian wet.