Above are the rib and block slabs and below are in situ concrete slabs. The rib and block slabs need less raw material in their making which makes them more economical to use during construction ...

Deciding on whether to use hollow-core slabs or rib-and-block systems to construct concrete floor slabs for residential projects cannot be taken lightly. Jaco de Bruin, CoreSlab’s managing director, ...

However, unlike rib-and-block systems ... hollow-core slabs are significantly lighter than a large solid concrete floor slab of equal thickness or strength. This lowers the cost of manufacture ...

However, there is almost no scope for weight reductions with the concrete construction techniques typically used today ... The weight reduction is possible because, instead of being flat, the slabs ...

These post-tensioned ribs carry the principal load of the “Smart Slab.” In placing the principal load above the concrete shell, the research team was able to insert complex geometric features ...