Formwork is temporary or permanent support and a
mold which gives shape and size to the concrete before hardening of concrete or
other similar material when poured in it. In India generally two types of
formworks are used, first is traditional timber formwork and another is steel
formwork. But now a day there are various types of advance formwork are
available in the market. Advance formworks have too many advantages as compared
to the traditional timber formwork and steel formwork.
Today I am discussing about latest
formwork types and there advantages.
Engineered Formwork System:
Engineered Formwork System
This formwork generally is made up of the steel or aluminum
material with prefabricated modules. This type of formwork is used for side
with material having surface structure. As compared to traditional timber
formwork engineering formwork system have two major advantages. One is speed of
construction i.e. the speed of construction of this type of formwork is more as
compared to timber formwork. And other is lower life-cycle cost.
Re-usable
Plastic Formwork:
Re-usable Plastic Formwork
The
panels of this formwork system are light in weight robust. This is useful for
the mass housing concrete.
Permanent
Insulated Formwork:
Permanent Insulated Formwork
This formwork is assembled on site,
usually out of insulating concrete forms (ICF). The formwork stay in place
after the concrete has cured, and may provide advantages in terms of speed,
strength, superior thermal and acoustic insulation, space to run utilities
within the EPS layer, and integrated furring strip for cladding finishes.
Stay-In-Place
Structure Formwork System:
Stay-In-Place Structure Formwork System
This type of formwork is also assembled
on site, usually out of pre-fabricated fiber-reinforced plastic forms. These
are in the shape of hollow tubes, and are usually used for columns and piers.
The formwork stays in place after the concrete has cured and act as axial shear
reinforcement, as well as serving confine the concrete and prevent against
environmental effects, such as corrosion and freeze-thaw cycles.
Flexible
Formwork:
Flexible Formwork
Flexible
formwork is a system that uses lightweight, high strength sheets of fabric to
take advantage of the fluidity of concrete and create highly optimized,
architecturally interesting, building forms. Using flexible formwork it is
possible to cast optimized structures that use significantly less concrete than
an equivalent strength prismatic section, thereby offering the potential for
significant embodies energy savings in new concrete structures.
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