As part of testing and assessing the performance of a cast slab whether it is a hollow or solid slab, one or two way slab, weights are place on top of the slab to measure its performance. By monitoring the deflection of the tested element (slab), assessment of the slab can be made and whether the structural performance of the slab is within the design criteria that it was designed for.
The slab is loaded to its design load by placing dead loads in the form of cement bags or concrete blocks or any other source of load. Loading is usually carried over a period of 2 days at various loading schemes during which the deflection of the slab is monitored at various location within the loaded area.
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