sir please solve my assignment problem. it is a 10 marks question so please give

Question

sir please solve my assignment problem.
it is a 10 marks question so please give detailed answer of all the parts & explain it briefly.

B.2 Formwork is a temporary mould to provide support to fresh concrete when placed in structural member until the concrete has set. This helps the structural member to gain sufficient strength to carry its self-load and load from other members Prepare a report addressing the following, (4+6-10 Marks) B2.1 List the different types of formwork materials and discuss their merits and de merits B2.2 Suggest a suitable type of formwork material and new trending formwork system for reinforced concrete wall and justify your selection.

Explanation / Answer

read it carefully for detailed knowledge....

Formwork (shuttering) in concrete construction is used as a mould for a structure in which fresh concrete is poured only to harden subsequently. Types of concrete formwork construction depends on formwork material and type of structural element.

Formworks can also be named based on the type of structural member constructionsuch as slab formwork for use in slab, beam formwork, column formwork for use in beams and columns respectively etc.

The construction of formwork takes time and involves expenditure upto 20 to 25% of the cost of the structure or even more. Design of these temporary structures are made to economic expenditure. The operation of removing the formwork is known as stripping. Stripped formwork can be reused. Reusable forms are known as panel forms and non-usable are called stationary forms.

Timber is the most common material used for formwork. The disadvantage with timber formwork is that it will warp, swell and shrink. Application of water impermeable cost to the surface of wood mitigates these defects.

A good formwork should satisfy the following requirements:

Types of Formwork (Shuttering) for Concrete Construction:

Timber Formwork:

Timber for formwork should satisfy the following requirement:

It should be

Timber used for shuttering for exposed concrete work should have smooth and even surface on all faces which come in contact with concrete.

ADVANTAGES OF FORMWORK...

ADVANTAGES OF TIMBER

Timber is a versatile material. It offers several different advantages.

But a few disadvantages as well…

DISADVANTAGES OF TIMBER

Steel Formwork

This consist of panels fabricated out of thin steel plates stiffened along the edges by small steel angles. The panel units can be held together through the use of suitable clamps or bolts and nuts. The panels can be fabricated in large number in any desired modular shape or size. Steel forms are largely used in large projects or in situation where large number reuses of the shuttering is possible. This type of shuttering is considered most suitable for circular or curved structures.

ADVANTAGES OF STEEL FORMWORK:

DISADVANTAGES OF STEEL FORMWORK:

PLASTIC FORMWORK:

ADVANTAGES OF PLASTIC FORMWORK:

DISADVANTAGES OF PLASTIC FORMWORK:

ALUMINIUM FORMWORK: Aluminium is strong and light, and consequently fewer, supports and ties are required. ADVANTAGES OF ALUMINIUM FORMWORK:

DISADVANTAGES OF ALUMINIUM FORMWORK:

Ans (2) Slection of formwork material should be based on...

Important factors in design are:

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