The LAYJET laying unit
In a single step, a special grinding wheel is used to cut a narrow trench 18 to 25 cm wide and 50 to 70 cm deep in the road shoulder approx. 10 cm from the edge of the pavement. In the process, up to 5 multitubes are inserted into the trench and encased in sieved and quality contolled fine material. A coded route warning tape is inserted at the desired height and the trench is filled with the remaining removed and prepared material. During the entire laying process, the trench remains protected by an integrated travelling formwork device and thus the road body remains stable. This is followed by specially developed, multi step compaction and, finally, automated restoration of the road shoulder. An integrated satellite receiver simultaneously provides precise position documentation with an accuracy of 2 to 5 cm. Through lateral displacement of the laying unit the edge loads on the pavement are being minimized. LAYJET technology is considered by experts to be by far the most gentle laying method along roads in the road shoulder as the road body remains stable during the entire laying process while its homogenity is barely disturbed.