These days, construction companies are expected to complete projects not just up to demanding specifications but also in short timeframes. As a result, there has been a good deal of innovation occurring within the industry aimed at reducing foundation construction times. Read on to find out about a few of the most effective strategies.
More Efficient Formwork
There are dozens of formwork systems available to today’s concrete contractors, which makes it easier to complete foundation projects on short timeframes. Instead of having to first construct the formwork, the contractors can purchase exactly what they need, set it up quickly, and expect reliable results. Common examples include:
The Tunnel Technique
The tunnel technique involves the use of a high-tech formwork system that allows contractors to manufacture monolithic slabs before construction. The tunnel technique offers many of the same benefits as pre-built structures, but it’s only appropriate for some applications. Assembling monolithic slabs and walls requires the use of large cranes. As a result, this technique can’t be used in narrow places.
Insulating Concrete Formwork
Insulating formwork features polystyrene panels set in pairs. The concrete is then poured between the panels. This system has the benefit of offering not just quick, efficient installation but also optimal levels of thermal insulation once the project has been completed.
One-Man Formwork
Contractors have always had to set formwork by hand. Now, though, there are options available that are lightweight enough to be handled by one person instead of an entire crew, even if they’re needed for large-scale projects. Simplified clamps combined with the use of lightweight materials allow small crews to assemble the formwork in remarkably little time using no tools.
Precast and Preassembly of Concrete Structures
Concrete foundations are usually cast on-site. However, when time is of the essence, structures can be precast, or even preassembled, before construction begins. There are a few ways to go about this process. They include:
Prefabricated Bases
In some cases, building foundations are prefabricated either on-site or off-site in multiple pieces that can then be connected together. Since the concrete doesn’t need to cure, these systems can be used in adverse weather conditions. They also require less digging, which can be an advantage when working in areas with contaminated soils.
Precast Slabs
Concrete slabs can also be precast either off-site or on-site for later assembly. This strategy works not just for foundations but also for floors, ceilings, and even walls. When used for these applications, the manufacturers simply leave spaces in the slabs for doors, windows, and trim.
3D Volumetric Construction
This advanced construction technique involves the preconstruction of complete units using methods similar to those seen in the plate technique used in tunnel construction. They are typically manufactured off-site, then assembled on-site using precision measurements to ensure stability. While 3D volumetric construction is rarely used for foundations, it’s not unheard of.
Quality and Safety Over Speed
While it’s true that today’s concrete contractors are expected to complete projects in record times, there is never a compelling reason to prioritize speed over quality and safety. Concrete must be cured to exact specifications, even if that means creating an unwanted delay. The key is for contractors to obtain the right tools and learn how to use them efficiently and effectively for multiple project types so that they can complete foundations on time without jeopardizing building integrity or worker safety.
