5. Treatment of longitudinal constr

5. Treatment of longitudinal construction joint: for the places where the longitudinal construction joint must be set up, the surveying and setting out shall be carried out in advance according to the positions required by the design drawings, and then the formwork shall be erected. The top elevation of the formwork shall be the same as the design elevation of the top after the mixture is compacted. When rolling the mixture, special attention shall be paid to the vicinity of the longitudinal joint. First, the compactness of the area shall be qualified, and second, the formwork shall not be displaced during rolling. During the next construction, the loose or insufficient compactness strip (generally 10-20cm) shall be cut off, and a layer of cement slurry shall be applied first and then connected.(five) health preservationAfter the completion of construction, water shall be sprayed for curing for at least 7 days. When watering for curing, it is necessary to ensure that the water is evenly sprinkled, without leakage or overspray. It is advisable to keep the surface of the base course moist. During the curing period, a special person shall be assigned to inspect the wetting condition of the mixture surface every day to avoid dry shrinkage cracks. Meanwhile, the traffic shall be closed to protect the pavement.