Repair of the damaged road surface type 4 with "patch": for the location of the damaged reef cracks, potholes, subsidence of wheel tread: handle peaches remove the whole existing road surface texture ensure minimum depth 15 cm. Then returned to the pitch road surface by new road jacket structure from the bottom up as follows : CPĐD type 2 (when use thickness H ≥ 30 cm) or level macadam distribution type 1 (when use thickness H < 30 cm) + 15 cm CPĐD type 1 + plastic irrigation repellent 1 kg/m2 standard MC70 clinging to ensure traffic
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