Asphalt pavement must be regular and cyclical maintenance, must implement the civilized construction, production safety policy, develop technical safety measures, strengthen safety education, strict implementation of safe operating procedures, to ensure safety in production.
Here are some early asphalt pavement maintenance methods:
1, hot mix asphalt road surface of the initial conservation
(1) paving, compaction of hot mix asphalt pavement, to be paved layer of natural cooling, the mixture surface temperature below 50 ℃ before opening up traffic.
(2) vertical and horizontal construction joints asphalt pavement is the weak link, should strengthen the initial conservation, at any time with a three-meter ruler to find exposed slightly uneven, shovel high complement low, after the napping, the mixture pad level, pressure real.
2. asphalt penetration of the initial road maintenance
(1)after the completion of the road, open traffic, speed limit of 15Km / h vehicles, according to the surface molding situation, and gradually increased to 20Km / h.
(2) Set the command of traffic or temporary road signs, according to the first two sides, Intermediate control vehicle easy to rutting, to achieve full compaction.
(3)should be at any time to disperse the caul from the road to fly back, sweep, compaction, to form a flat dense seal layer. When the road after the oil pan, it is necessary to fill and laying the last layer of mineral materials in the same caulking the same material, while controlling traffic rolling.
3, the surface treatment of asphalt surface of the initial conservation
(1) pavement construction of the asphalt surface treatment The initial road maintenance and penetrating pavement basically the same basic requirements.
(2) mixing the construction of the asphalt surface treatment The initial curing and hot mix asphalt mixture basically the same basic requirements.
4, emulsified asphalt pavement initial curing emulsified asphalt pavement of the initial stability is poor, the compaction of the road after the initial maintenance should be done, set up special management, according to the actual demulsification situation, closed traffic 2-6h, in the unbroken sections , Is strictly prohibited all vehicles, people through, open traffic early, should control the speed does not exceed 20Km / h, and shall not brake and U-turn. When there is damage should be repaired in time.
