As concrete is the most extensively used material in construction due to its safety, durability, and sustainability, some research has resulted in various types of options for the formwork which is necessary for the construction of this concrete. Many types of formwork are available in the market.
The following article discusses some of the most prominent types and highlights some of their key benefits and limitations for you to get a better understanding of them:
- Timber Formwork:
This is one of the most common types of formwork that most people have been using for ages now. The timber formwork is quite cheap which quite precisely justifies its high popularity as a concrete formwork option. This formwork is quite easy to produce but has a short life span and one builds the formwork generally on the site of concrete construction itself. However, a major concern for this type of concrete formwork is that these have a possibility of warping and swelling, and even shrinkage which makes it particularly inconvenient for large structures. Moreover, for such large structures, the timber formwork consumes a lot of time which is highly undesirable. This accounts for its decreasing popularity among the ones that have lesser budget constraints but remains to be a go-to for most with a limited budget.
- Plastic Formworks:
This particular type of framework that one gets from plastic is quite a robust yet lightweight alternative for Formwork For Concrete Slab. These are of particular interest for repetitive small constructions where much effort into removing the framework is undesirable. This plastic formwork creates a modular system that is interlockable and one can clean and remove it simply with just the application of water and does not require any special and specific removing agent. The major problem with this type of formwork is that they are weak against the heat which makes it undesirable in such sites that witness considerable heat. Moreover, they are slightly costly and so they are generally useful only for repetitive construction sites that do not demand the framework to bear much load.
- Engineered Formwork:
One can build this type of framework generally from engineered and prefabricated structure modules like steel and aluminium. They are new age, modern-day alternatives to the traditional timber framework that was not the ideal fit in most cases due to their obvious limitations. While steel formwork is highly desirable for applications that need to handle heavy loads and need strong and durable alternatives, aluminium formwork for a concrete slab is a better choice where the weight of the formwork is a concern. In addition to these, both these types of the engineered framework are easy and great in terms of reusability and quite easy to fix and dismantle. The concern for steel framework, however, is its heavyweight and higher cost and availability in limited size and shape forms. Moreover, they are susceptible to corrosion in frequent contact with water. The slight disadvantage of aluminium formwork is that architectural modifications are not possible with this formwork.
Selecting the right formwork for concrete slab that you wish to construct is extremely necessary and so one should choose very wisely according to the suitability of one’s task.