Abstract: The invention manufactures mechanical strong objects from a mixture of a plurality of fractions, which together have a high filling grade by accommodating them in plastic, preferably a thermosetter of the low viscosity type. The plastic is preferably resistant against leaching as defined in the Concept Bouwstoffenbesluit, when pollutions in the fractions are present. Finally the invention gives objects with good mechanical properties at low cost price, because of the relatively small use of plastic (to only 8 volume % or less) and the favorable mechanical properties of strongly densified waste, residual or filler materials. Coloring of the objects is possible and the surface can be very smooth. Fibres or residues of fibres containing waste materials can improve the obtained products still further.

Abstract: Pavement element such as a tile with an upper porous layer (2), below that a liquid-tight layer (3) and possibly there below a heavy layer (4). In order to keep a floor laid with suchlike elements well liquid-tight at the level of the liquid-tight layers sealing means (6) are provided between this layer (3) or one element and the same layer (3') of an adjacent element. Preferably these means consist in a rib or protrusion, which may cover the complete height of the liquid-tight layer. Preferably the porous layer is formed from particles of the same size having an irregular shape and the liquid-tight layer from particle from different particle sizes, such that the particles attain a high filling degree.