Click here to get this post in PDF
Poured concrete needs time to harden and set. While it is setting, the concrete must remain in formwork to hold its shape. Formwork is nothing more than a mold created to fulfill the project specifications. This mold determines the finished shape of the concrete because liquid takes on the form of the container holding it.
However, this formwork must hold the desired shape of the structure and withstand the weight of the wet concrete. In addition, strong joints are needed, so the concrete doesn’t leak. What do concrete contractors need to know to effectively transform their concrete formwork solutions?
When the time comes for finding formwork solutions, turn to professionals for help. This ensures the formwork will be used efficiently to its full capacity. By working with a professional from the start, companies find they are able to minimize delays and unexpected costs.
The professional will review the project and identify any site and design challenges that need to be addressed. Ensure concrete contractors are on hand during this review, as they will be responsible for building the structure. They can provide input regarding which formwork is needed.
Properties of Excellent Formwork
Regardless of which material is used to construct the formwork, the finished product should be strong and lightweight. It needs a rigid construct that will retain its shape even under stress. The formwork cannot crack, slip, or bend, as this will affect the integrity of the finished structure.
If the formwork is damaged in any way, the concrete may pour out. If it doesn’t come out, the intended shape might be ruined. This happens when the formwork is damaged after the concrete has partially cured.
However, the contractor should also consider the weight of the formwork. Timber and plywood are two lightweight options that offer the desired properties.
Many projects require approval from local authorities before they may proceed. Concrete contractors must take this into consideration when planning the project. For example, project designs and specifications may need to be submitted to ensure they comply with all rules and regulations.
This process can take months to complete, so planning for it ahead of time ensures the project remains on schedule. Plan for revisions to these plans also by adding extra time to the project timeline. If there are no revisions, the project can come in ahead of schedule.
Contractors may choose to rent formwork rather than purchase or build it. They often do so when they are completing a special project and the formwork will only be used one time.
There is no need for storage space for the forms when this option is used, and the rental provider typically delivers the forms to the job site. Contractors find they save money when choosing this option, as they aren’t using employees to create a form that will only be used once.
Professional help brings with it value engineering. This individual will recommend design changes to keep project costs under control. They will draw up an assembly and erection plan based on the project requirements and the contractor’s preferences. This helps to optimize the use of the forms. With this professional’s help, the contractor will make informed decisions regarding every element of the formwork. In addition, value engineering helps to identify and assess risks in advance.
Concrete forms are used for a variety of projects, including pouring concrete slabs and making paving stones. Ensure the right formwork is selected for each project. A formwork provider can be of help with this.
You may also like: 5 Uses of Wire Mesh Sheets in Construction
Image source: Shutterstock.com