It is called formwork to the mold that develops with veneers or boards in order to contain the concrete until its set is achieved. Once the concrete sets, the formwork is dismantled.
Before proceeding with the definition of formwork, it is important to know what the concrete and how it works. It is called concrete or concrete to the material obtained by mixing cement or lime with gravel, sand and water.
So that the concrete becomes solid and resistant, you have to wait for its setting. Fraguar, in this framework, is the process that leads the material to harden.
Returning to the idea of formwork, it is the mold that is used so that the concrete take shape while its setting is taking place. The origins of this system go back to the time of Roman empire.
There are different types of formwork. The traditional formwork appeals to wood and it can be easily assembled, although it is not suitable for large constructions. In these cases, the modular formwork, consisting of prefabricated plastic or metal modules.
The aluminum formwork, meanwhile, it is used in columns, beams and walls, while the sliding formwork can be reused as the construction site it grows in surface or height.
The formwork is usually disassembled and can be used again in other developments. However the lost formwork is the one that remains permanent since it is attached to the structural part, with which it is not recovered or reused.