一、层间剥离 = 路面「贴春联翘边」：不处理半年就烂

　　1、 Interlayer peeling=road surface 'sticking spring couplets and curling edges': if left untreated for half a year, it will rot

　　想象刚铺的再生路面像贴春联，没过多久边缘就翘边剥离 —— 某省道冷再生施工后 3 个月，雨水从剥离缝渗入，路基泡软后整段路面龟裂，维修成本比施工费高 2 倍！层间剥离本质是新旧材料「闹离婚」，这 3 招能让它们「焊死」不分离。

　　Imagine the newly laid recycled road surface being like spring couplets, and soon the edges will curl and peel off - three months after the cold recycling construction of a certain provincial road, rainwater seeps into the peeling joints, causing the entire road surface to crack after the roadbed is soaked and softened. The maintenance cost is twice as high as the construction cost! The essence of interlayer delamination is the "divorce" between old and new materials, and these three moves can make them "welded together" without separation.

　　二、第一招：旧路面「搓澡」要彻底 —— 像洗碗去油才能粘牢

　　2、 The first trick: The old road surface needs to be thoroughly scrubbed - like washing dishes to remove oil in order to stick firmly

　　1. 铣刨深度「刮骨疗毒」

　　1. Milling depth "bone scraping therapy"

　　标准操作：铣刨深度必须穿透松散层，某高速施工用 3D 雷达扫描旧路面，发现 10cm 下有隐形松散层，铣刨 15cm 后剥离率降为 0；

　　Standard operation: The milling depth must penetrate the loose layer. A certain high-speed construction used a 3D radar to scan the old road surface and found an invisible loose layer below 10cm. After milling 15cm, the peeling rate decreased to 0;

　　反面教材：某县路只铣刨 8cm，旧料夹层像「隔层纸」，通车半年后剥离面积超 30%。

　　Negative example: A certain county road only milled 8cm, and the old material interlayer looked like "interlayer paper". After six months of operation, the peeling area exceeded 30%.

　　2. 浮尘清理「干洗消毒」

　　2. Dust cleaning "dry cleaning and disinfection"

　　组合工具：先用铣刨机自带吸尘器吸浮尘，再用钢刷扫缝，某市政工程用「吸 + 扫」组合，旧路面粉尘残留量＜5g/㎡；

　　Combination tool: First, use the built-in vacuum cleaner of the milling machine to suck up floating dust, and then use a steel brush to clean the seams. A certain municipal project uses a "suction+scan" combination, and the residual amount of flour dust on the old road is less than 5g/㎡;

　　错误示范：某工地直接用水冲，结果粉尘遇水成泥，再生层像「粘在泥巴上的纸」，剥离风险增加 4 倍。

　　Error demonstration: A construction site directly flushed with water, resulting in dust turning into mud when it comes into contact with water, and the regenerated layer resembling "paper stuck to mud", increasing the risk of peeling by four times.

　　三、第二招：再生剂「胶水」调得好 —— 像熬粥浓稠度要刚好

　　3、 Second move: The regenerant "glue" is well adjusted - like porridge, the consistency should be just right

　　1. 旧料级配「筛沙子」

　　1. Grading of old materials with "sieved sand"

　　过筛标准：4.75mm 筛孔通过率偏差≤5%，某项目旧料含泥量超标，加 10% 新集料后，层间粘结力提升 30%；

　　Screening standard: The deviation of the 4.75mm sieve hole passing rate is ≤ 5%. In a certain project, the mud content of the old material exceeds the standard. After adding 10% new aggregate, the interlayer bonding strength is increased by 30%;

　　案例对比：某高速没筛旧料，再生层像「夹生饭」，剥离处能看到成团泥土。

　　Case comparison: A certain highway did not screen old materials, and the recycled layer looked like "undercooked rice", with clumps of soil visible at the peeling point.

　　2. 含水率「测湿度」

　　2. Moisture content measurement

　　黄金区间：再生施工时旧料含水率控制在 6%-8%，某北方工地干燥季喷雾加湿，剥离率比未加湿段低 70%；

　　Golden zone: the moisture content of the old material is controlled at 6% -8% during the recycling construction. In the dry season of a northern construction site, spray humidification, and the stripping rate is 70% lower than that of the non humidified section;

　　极端处理：南方雨季用生石灰预拌，某项目含水率超 12% 时，每 1000㎡加 500kg 生石灰，成功控制剥离。

　　Extreme treatment: Pre mixed quicklime is used during the rainy season in the south. When the moisture content of a certain project exceeds 12%, 500kg of quicklime is added every 1000 square meters to successfully control stripping.

　　四、第三招：碾压工艺「揉面团」技巧 —— 像包饺子擀皮要均匀

　　4、 Third move: Rolling process - "Kneading dough" technique - like making dumplings, rolling the dough evenly

　　1. 初压「拍饼定型」

　　1. Initial pressing "patting cake shaping"

　　钢轮静压：10-12t 钢轮先静压 2 遍，某工地用 12t 轮初压，再生层密实度达 92%，比 10t 轮高 5 个百分点；

　　Steel wheel static pressure: 10-12t steel wheels are first static pressed twice, and a certain construction site uses a 12t wheel for initial pressure. The density of the regeneration layer reaches 92%, which is 5 percentage points higher than that of a 10t wheel;

　　禁忌操作：某项目直接用胶轮碾压，再生料像「揉散的面团」，层间出现滑移剥离。

　　Taboo operation: A certain project is directly rolled with a rubber wheel, and the recycled material looks like "kneaded dough", causing slippage and peeling between layers.

　　2. 复压「擀皮压实」

　　2. Re pressing "rolling and compacting the skin"

　　振动碾压：振幅 0.8-1.2mm，某国道用 1.0mm 振幅复压，层间粘结强度达 0.6MPa，是 0.5mm 振幅的 1.5 倍；

　　Vibration compaction: amplitude 0.8-1.2mm, a certain national highway uses 1.0mm amplitude re compaction, and the interlayer bonding strength reaches 0.6MPa, which is 1.5 times the amplitude of 0.5mm;

　　速度控制：复压速度≤4km/h，某高速超速到 6km/h，再生层出现「鱼鳞状」剥离纹路。

　　Speed control: The re pressing speed is ≤ 4km/h. When a certain highway exceeds the speed limit to 6km/h, "fish scale" peeling patterns appear on the regeneration layer.

　　五、环境应对「看天气做饭」—— 雨天别施工，低温要加温

　　5、 Environmental response: 'Cooking based on weather' - Do not work on rainy days, warm up in low temperatures

　　1. 雨天「停火关火」

　　1. "Cease fire and turn off fire" on rainy days

　　临界值：降雨量＞10mm/h 必须停工，某南方项目冒雨施工，再生层像「泡发的饼干」，剥离率超 80%；

　　Critical value: If the rainfall exceeds 10mm/h, work must be stopped. A certain southern project is being constructed in the rain, and the regeneration layer is like a "soaked biscuit" with a peeling rate of over 80%;

　　补救措施：小雨时用大功率吹风机吹干路面，某市政工程这样做，剥离率从 50% 降到 15%。

　　Remedial measure: During light rain, use a high-power hair dryer to dry the road surface. A certain municipal engineering project did this, reducing the stripping rate from 50% to 15%.

　　2. 低温「开小太阳」

　　2. Low temperature "turning on the small sun"

　　施工底线：气温＜5℃时，用红外加热板预热旧路面至 15℃，某北方项目低温施工未预热，剥离率是正常天气的 3 倍；

　　Construction bottom line: When the temperature is below 5 ℃, use an infrared heating plate to preheat the old road surface to 15 ℃. A low-temperature construction project in the north did not preheat, and the peeling rate was three times that of normal weather;

　　成本对比：预热多花 2000 元 / 天，却避免了后期 10 万元返工费。

　　Cost comparison: Preheating costs an additional 2000 yuan/day, but avoids a rework fee of 100000 yuan in the later stage.

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