In all types of ribbed ceilings, a layer of concrete, the so-called. nadbeton. Tam, where possible, this layer is poured from ready-mixed concrete delivered to the construction site with a concrete pear and a pump. Tam, where the delivery of concrete is impossible, the concrete overlay must be poured by hand, usually transported by a wheelbarrow from the preparation site. However, you cannot move the wheelbarrow over the stacked blocks. A platform made of boards rests on them, on which we roll the wheelbarrow.