ABS Plus Wide Base for Void Formwork System

Standard disposable formwork systems used in reinforced concrete raised floor construction typically consist of multiple legs, each with a diameter of 125 mm, and bases of the same diameter. When these systems are installed on a structural reinforced concrete slab or reinforced screed/concrete, the 125 mm legs effectively transfer the load to the ground without issues.

However, when installed on natural ground, even if well compacted, the small contact area of the 125 mm diameter legs (covering only 1.3% of the area) poses a significant risk. Under load, these legs can puncture the ground, causing them to sink. This can lead to deflection in the reinforced concrete raised floor above, resulting in fractures, cracks, and potentially severe material damage that is difficult to repair.

To address these issues, a Wide Base with a diameter of 350 mm has been introduced. This solution significantly reduces the risk of puncturing and deflection when void formwork systems are installed on natural ground. By increasing the contact area from 1.3% to 9.6%, the Wide Base provides approximately 7 times more ground contact than the standard 125 mm diameter base. This enhanced support ensures effective load transfer and mitigates the risks associated with ground sinking and structural damage.