Types of formwork systems and their classification

by Derrick Corea Technosoft Innovations, Inc

Formwork for the concrete ladder, as well as molds for casting other structural elements, are classified according to various characteristics and parameters:

Removable and non-removable changes differ depending on the bend settings.

Removable type modifications have been generalized, both in the construction sector and in the construction of low-rise housing. Non-removable modifications are generally used in the construction of large industrial plants, where they then fulfill a protective function.

In accordance with the purpose, the formwork is divided into several forms: walls, floors, columns, elevator shafts, foundations, etc.

Depending on the materials used, the formwork systems can be made of wood, metal and polymer.

The most common in individual construction received a wooden formwork .

Such constructions can be constructed both with the use of specially acquired materials for this laminated plywood, and from old unwanted planks.

As a general rule, all wood constructions are removable, because if you leave the wood on already poured structural elements, the rot will start over time and the wood will collapse.

 

The metal formwork can be both removable and non-separable . These structures are made of corrosion-resistant metals and their alloys.

The price of these forms is much higher than that of wooden analogues, which, incidentally, is justified by the durability and simplicity of their operation.

Polymer formwork - this is a relatively new technology in which non-removable systems are manufactured for use in the construction of installations under the most adverse weather conditions.

Most often, for the production of such forms, the polystyrene used was characterized by its low weight and its resistance to excessive moisture. By the way, the thermal insulation formwork used for winter concreting is made of polystyrene.

Important: The fixing of the formwork for solid concrete must be carried out professionally and with extreme care. Due to the imprecision of the system assembly, gaps and irregularities may form, which will negatively affect the quality of the finished concrete product. You will then have to cut the concrete with diamond circles.

 

Construction features

Industrial formwork systems used in wall construction can be of three types:

Modification of the frame including frame protectors, retaining elements and fasteners. At the heart of the protective screens used, reinforced ribs with metal structure.

On the formwork of the photo frame

A Slab Formwork is mounted directly on the support frame, which forms and maintains the mortar.

Special frames of the hollow profile are used to prevent deformation of the ends during the dismantling of the shape. The use of metal structural elements not only increases the strength of the formwork to mechanical stresses, but also reduces the time required for installation work.

Beam formwork is a structure based on beams, plates, fasteners, spacers and a bolt. The design can be realized using wood with plastic or metal points and fasteners.

The systems are manufactured on an industrial scale and, as a result, the standard beam sizes are standardized to ensure interchangeability.

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Created on Oct 22nd 2019 08:26. Viewed 279 times.

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