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08Oct92 UK: RJ MAXWELL CARRIES OUT M2 REPAIRS AFTER DEPARTMENT OF TRANSPORT AGREES TO FOOT £325,000 BILL.

Ruts which appeared on two sections of the M2 in Kent in 1990, have finally been repaired after the Department of Transport agreed to foot the £325,000 bill.R J Maxwell carried out the work over 10 days on one small section near Faversham and one larger stretch at junction 4.Kent County Council, as the DTP's agent, had been reluctant to authorise repairs. First it had to determine the cause of the ruts and then decide whether it could claim against the original contractors.Research by the Transport and Road Research Laboratory (TRRL) showed the ruts had been formed by a particular type of rounded sand particle in the asphalt mix which Kent had specified.These particles were more easily compressed under pressure. Consequently ruts formed more easily, although it is still not known why only certain sections of the rebuilt motorway were affected.