Formwork

Formwork :

Formwork

The fresh concrete after mixing the ingredients will which is poured into the required molds in its plastic stage to attain its full strength. The molds are called Formwork. 

Types :

The types of formwork which are used are classified as :

1. Based on Material
2. Based on Use

Based on Material :

1. Timber Formwork :

Timber Formwork

The formwork are usually made of wood and called timber formwork. They are easy to use and assemble and remove after concrete has achieve its required strength. 

Easy availability, good strength, and flexibility are key significance of timber formwork.

The modern form of this formwork is Plywood Formwork.

2. Plastic Formwork :

Plastic Formwork

This formwork is used where it is required again and again such as apartment buildings or high rise buildings where each floors are require to have same formwork. 

This formwork is easy to assemble and remove same as the timber formwork but the flexibility of the formwork is is limited as the shape and size will not be able to change as same as timber formwork.

 3. Steel Formwork :

Steel Formwork

This formwork is made of steel and is fixed with nut bolts. The steel formwork is see to be used in small bungalow and villa construction and have same function as plastic formwork. 

Easy to assemble and remove with very few labor work required and have long lifetime.

Based on Use :

1. Formwork for Floor
2. Formwork for Columns
3. Formwork for Slab
4. Formwork for Wall
5. Formwork for Staircase

This are made from the above discussed formwork of different material.

Recently with use of technology and new techniques the formwork's are made of and made patient made and are made available in market for different use.

Slip Formwork

For construction of chimneys and steam towers in the nuclear power plants where Slip formwork are used. This make the construction work double the speed compared to conventional formwork.