Laying   Compacting    
After completing the laying, the compacting is carried out by means of a mechanical vibrating tamper. By means of special brooms the gaps between the joints are filled in with sand and cement; then the paving is compacted to make it even. The objective is to compact the layer to a maximum.


For further info please refer to:

manuale porfido
manuale posa

Two books are available at Consorzio Cavatori Produttori Porfido (Italian and English)