旧路面预处理

　　Pre treatment of old road surface

　　局部隆起、凹陷等，保证良好的下承层。

　　Remove local bumps, depressions, etc. to ensure a good underlying layer.

　　检测旧路弯沉、结构层厚度、材料土质等，为再生施工提供数据支持。

　　Detect the deflection of old roads, thickness of structural layers, material and soil properties, etc., to provide data support for recycling construction.

　　铣刨与破碎

　　Milling and crushing

　　使用冷再生机对旧沥青混凝土路面进行铣刨和破碎，得到再生骨料。

　　Using cold recycling technology to mill and crush old asphalt concrete pavement to obtain recycled aggregates.

　　控制铣刨、破碎深度，确保再生底基层厚度满足设计要求。

　　Control milling and crushing depth to ensure that the thickness of the regenerated subgrade meets the design requirements.

　　拌和与整形

　　Mixing and shaping

　　将再生骨料、新集料（如有需要）、水泥等按设定配比进行拌和。

　　Mix recycled aggregates, new aggregates (if necessary), cement, etc. according to the set ratio.

　　拌和过程中，需控制含水量和拌和时间，确保拌和均匀。

　　During the mixing process, it is necessary to control the moisture content and mixing time to ensure even mixing.

　　使用平地机等设备对拌和后的混合料进行整形，使其达到设计要求的形状和坡度。

　　Use equipment such as a grader to shape the mixed material to meet the design requirements for shape and slope.

　　摊铺与压实

　　Laying and compaction

　　将整形后的混合料均匀摊铺在路面上。

　　Spread the shaped mixture evenly on the road surface.

　　使用振动压路机、轮胎压路机等设备进行压实，确保压实度满足设计要求。

　　Use equipment such as vibratory rollers and tire rollers for compaction to ensure that the compaction degree meets the design requirements.

　　压实过程中，需控制碾压速度、遍数和含水量，避免过压或欠压。

　　During the compaction process, it is necessary to control the rolling speed, number of passes, and moisture content to avoid over pressure or under pressure.

　　养生与检测

　　Health Preservation and Testing

　　压实完成后，对路面进行养生，确保水分逐步散失、混凝土强度增加。

　　After compaction is completed, the road surface should be cured to ensure gradual loss of moisture and increase in concrete strength.

　　养生期间，需保持路面湿润，避免干燥开裂。

　　During the health preservation period, it is necessary to keep the road surface moist to avoid dryness and cracking.

　　养生结束后，对路面进行检测，包括压实度、强度等指标，确保满足设计要求。

　　After the health preservation is completed, the road surface should be tested, including compaction degree, strength and other indicators, to ensure that it meets the design requirements.

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