During the maintenance of permeable asphalt concrete pavement, the driving speed is limited to 40KM-30KM, but heavy vehicles and machinery are prohibited.

1, concrete pavement paving is completed or soft anti-slide structure is completed, and maintenance shall be started immediately. All kinds of concrete pavements, bridge decks and slabs paved by machinery should be kept in good health by spraying curing agent and covering with moisture. Health care can be carried out in rainy days or when the water is sufficient, and wet health care methods such as covering with moisturizing film, geotextile, sacks, straw bags and straw curtains can also be adopted. , and it is not appropriate to adopt the water enclosure health care method. 2. When curing agent is sprayed on the concrete pavement for curing, the spraying should be uniform, the film thickness should be enough to form a completely closed wet film, and there should be no color difference on the sprayed surface. The spraying time should be carried out after the surface concrete bleeds. The spraying height should be controlled at 0.5 ~1m. When using the first-class curing agent, the minimum spraying dose should not be less than 0.30 kg/㎡. The minimum spraying dose of qualified products is not less than 0.35kg/㎡. Curing agents that are easily washed away by rain and have an impact on the strength and surface wear resistance of concrete shall not be used. When spraying curing agent can't meet the requirement of more than 90% effective water retention rate