1. Wet joint is adopted for cement

1. Wet joint is adopted for cement stabilized macadam joint, which means that 30-50cm of the mixture paved in front of the joint edge shall not be rolled in, until this part of mixture is compacted together with the mixture newly paved in the back before its initial setting, so as to ensure the quality of construction joint formed by the two pavements.2. Based on the construction experience of the pavement base, the ladder construction is adopted, and the distance between the two working surfaces is 50m. The treatment method of longitudinal wet joint formed by two parallel pavements is as follows: the first one is close to the joint within 30-50cm, no rolling is required when paving, and the second one is to be compacted when paving. When rolling the joint, pay attention to several times of rolling, and screen fine materials for patching at the rough part of the surface. In case of strong wind and hot weather, the first part not rolled shall be covered with plastic cloth To prevent excessive evaporation of water. The treatment of transverse construction wet joint is similar to that of longitudinal joint, and 30-50cm is reserved in the early paving section without rolling, and rolling shall be carried out at the next paving. See "Fig. 3 Schematic diagram of longitudinal wet joint treatment" for the treatment method of longitudinal wet joint.3. Treatment of transverse construction joint: vertical flat joint shall be adopted. There are two methods: one is that the end of the mixture paved the previous day has been rolled into a slope shape, and when paving the next day, the cutting machine is used at the top of the slope to cut out the mixture and pave the new mixture again; the other is that when paving to the end of the previous day, the square wood with the same thickness as the rolling forming is used at the joint, and the roller is used to roll all the mixture, and the square wood will be removed when construction is carried out the next day Drop, wet the joint with water, and then spread new mixture. After the joint is paved, a special person shall be assigned to remove the large particles in the mixture at the joint and fill them with fine mixture to ensure the smoothness and smooth connection of the joint.