Cast-In Place – concrete deposited in an unhardened state, primarily as ready-mix, and placed in forms. The concrete is formed and cured and finished in its final position as a part of structure. It is the material of choice or slab-on grade and foundation because of its long-term durability and structural support. It is also used in all types of buildings for either structural support as beams and columns, as well as for floors, walls, and roofs.
Slip Form – a form that can be move slowly and continuously as concrete is being placed during the construction. Slip forming is used for tall structure such as bridge, towers, building and dams as well as horizontal structures. This method is to enables continuous, non-interrupted (no joints) for the structural members
Lift Slab Construction – This is a method of constructing building by casting the floor slab or roof slab on top of the previous floor then raising it or lifted into final position, The lifting process needs an equipment like hydraulic jack, This is the most cheaper and faster way of constructing a concrete slabs and roofs as not requiring scaffolding to support the concrete casting.
Pre-Stressing Construction refers to pre-tensioning or post-tensioning, the purpose of this method is to overcome concrete’s natural weakness in tension, It can be used to produce beams, floors or bridge with longer span more than practical with ordinary reinforced concrete. Prestressing tendons are used to provide a clamping load which produces by compressive stress that balances the tensile stress of the steel reinforcement. This method produces good bond between the concrete and the tendon, which both protects the tendon form corrosion and allow for direct transfer of tension force to each member of the structures.
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