Benefits of Cassaform steel formwork over Traditional ways of formwork.
Traditionally formwork used to cast either vertical or horizontal concrete elements consists of timber bearers, joist and formply lining to give concrete its smooth or textured finish. This traditional method of assembling formwork is very slow and very labour intensive. To meet the cycle times of the construction program, formworkers resort to putting on extra labour to achieve the end result. They then resort to fabricating formwork tables to speed up their process and also rely on the fact they have the ability of reuse the timbers and formply components across a few projects to amortise their costs.
This philosophy is now dramatically changing as formworkers are now better understanding hidden costs to their business. For example
- Timber and formply material wastage costs.
- Storage facilities required to house idle building materials and formwork tables between projects.
- The suitability of their owned equipment to suit every project.
- Labour costs incurred to clean, repair and handle conventional formwork systems.
- Costs associated with stock control, management and accounting / depreciation of owned equipment.
- Rented equipment can be fully expensed to the project.
Steel Modular systems provided by Cassaform on the other hand can provide up to and in some cases even over 50% labour and time savings to your project. These systems are available for rental or sale.
There are variety of modular systems available in the market. Some are suited to casting vertical concrete elements such as walls and stair or lift cores and others are suited to casting horizontal concrete elements like suspended slabs.
In the case of modular walling systems, as the name suggests the systems consist of a series of modular panels of varying sizes which can be joined together quickly and easily to fit the desired shape to be cast. These panels typically come in heights of 3.0m, 1.5m or 1.0m and varying from 200mm up to 1000mm in width but can be joined to achieve wall heights of up to 9.0m. They can be assembled and positioned either horizontally or vertically to best suit the final shape required. They are extremely versatile and can be joined together or dismantled with clamps with the aid of a simple hammer. To put this into perspective a typical wall where say 6 men would be required for a total of 5 days to assemble a conventional formwork wall, this can be achieved in less than one day with three men using a modular walling panel systems.
In the case of modular slab systems there are a few different types of systems available but irrespective of which system is used, they are generally much faster and easier to use compared to conventional formwork systems. For example using an aluminium slab panel system 3 men can erect approximately 500m2 in one day whereas the same area formed using conventional systems with timber bearers, joist and formply could 6 men up to 4-5 days to complete.
Due to the modular nature of these systems they are light and easy to assemble and fit most flat plate slab areas. The primary components consist of steel beams, props and panels. The panels come in various sizes and consist of an aluminium frame with formply inserts.
These modular slab systems have a built in drop head mechanism which allows the aluminium beams and panels to be removed earlier than the shoring props. This allows reuse on the beams and panels which can be used to form subsequent floors. Apart from significantly saving in the cost of equipment required to service a project, it has a significant labour savings benefit by eliminating the need to remove formwork shoring and re-shore or back prop.
In Australia there is a real shortage of skilled labour and skilled sub-contractors. Modular steel formwork systems whether it be for walls or slabs reduces the requirement to have such skills on projects as the systems are easy to assemble and the manufacturer or supplier will generally provide you with construction drawings as to how it is to be assembled.