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冷再生路拌機施工要點解析
來源：http://www.hlbeyb.com/ 日期：2025-06-11 發布人：
冷再生路拌機作為一種、的路面修復設備，通過銑刨、破碎、拌合及攤鋪一體化作業，實現舊瀝青路面材料的再生利用。其施工要點涵蓋設備選型、工藝控制、質量檢測及措施四大核心環節，直接決定工程效率與路面性能。
As an efficient and environmentally friendly road surface repair equipment, the cold recycling road mixer achieves the recycling of old asphalt pavement materials through integrated operations of milling, crushing, mixing, and paving. The key points of its construction include equipment selection, process control, quality inspection, and environmental protection measures, which directly determine the efficiency of the project and the performance of the road surface.
一、設備選型與調試
1、 Equipment selection and debugging
機型匹配原則：根據工程規模、舊路結構及再生深度選擇設備。例如，小型冷再生機適用于村道維修，而大型設備可處理高速公路基層，銑刨寬度覆蓋2-4米，深度可達50cm。
Model matching principle: Select equipment based on project scale, old road structure, and regeneration depth. For example, small cold recycling machines are suitable for village road maintenance, while large equipment can handle highway base layers, with milling widths covering 2-4 meters and depths up to 50cm.
刀頭與刀庫配置：針對舊瀝青路面或水泥穩定基層，需選用不同材質刀頭。例如，硬質合金刀頭適用于高強度基層，而鑲齒刀頭則更適合瀝青路面銑刨。
Knife head and knife magazine configuration: Different materials of knife heads need to be selected for old asphalt pavement or cement stabilized base. For example, hard alloy cutting heads are suitable for high-strength substrates, while toothed cutting heads are more suitable for milling asphalt pavement.
核心部件檢查：施工前需校驗銑刨鼓轉速、拌合葉片角度及行走速度，確保再生料級配符合設計要求。
Core component inspection: Before construction, it is necessary to verify the milling drum speed, mixing blade angle, and walking speed to ensure that the gradation of recycled materials meets the design requirements.
二、施工工藝控制
2、 Construction process control
舊路預處理：
Pre treatment of old roads:
路面雜物，對嚴重車轍或裂縫進行預銑刨，確保再生層厚度均勻。
Remove road debris, pre mill severe ruts or cracks to ensure uniform thickness of the regeneration layer.
采用雷達探測技術識別地下管線，避免施工損傷。
Using radar detection technology to identify underground pipelines and avoid construction damage.
添加劑精準投放：
Accurate addition of additives:
根據舊料級配及含水率，計算水泥、乳化瀝青或泡沫瀝青的摻量。例如，水泥劑量通常控制在舊料質量的1.5-3%。
Calculate the amount of cement, emulsified asphalt or foam asphalt according to the old material gradation and water content. For example, the cement dosage is usually controlled at 1.5-3% of the old material quality.
采用計算機控制系統實現添加劑的連續、均勻噴灑，誤差控制在±0.5%以內。
Using a computer control system to achieve continuous and uniform spraying of additives, with an error controlled within ± 0.5%.
拌合與整平：
Mixing and leveling:
控制銑刨速度與拌合深度，確保再生料混合均勻。
Control milling speed and mixing depth to ensure even mixing of recycled materials.
使用平地機進行初步整平，再通過再生機自帶螺旋布料器實現二次精平。
Use a grader for preliminary leveling, and then achieve secondary precision leveling through the built-in spiral feeder of the recycling machine.
碾壓工藝：
Rolling process:
初壓采用鋼輪壓路機靜壓1-2遍，復壓使用振動壓路機振壓3-4遍，終壓以膠輪壓路機收面。
The initial compaction uses a steel wheel roller for 1-2 passes of static pressure, the secondary compaction uses a vibrating roller for 3-4 passes of vibration, and the final compaction uses a rubber wheel roller for finishing.
碾壓溫度需控制在80-110℃，避免低溫下壓實度不足。
The compaction temperature should be controlled between 80-110 ℃ to avoid insufficient compaction at low temperatures.
三、質量檢測與驗收
3、 Quality inspection and acceptance
過程檢測：
Process detection:
實時監測再生料含水率、級配及添加劑摻量，確保符合JTG/T 5521-2019《公路瀝青路面再生技術規范》。
Real time monitoring of moisture content, gradation, and additive dosage of recycled materials to ensure compliance with JTG/T 5521-2019 "Technical Specification for Highway Asphalt Pavement Recycling".
采用核子密度儀檢測壓實度，每200米檢測1處，合格率需達95%以上。
Using a nuclear density meter to detect compaction, one point should be tested every 200 meters, and the pass rate should be above 95%.
成品驗收：
Finished product acceptance:
鉆芯取樣檢測再生層厚度、強度及平整度。
Drill core sampling to detect the thickness, strength, and flatness of the regeneration layer.
進行彎沉試驗及滲水系數測試，確保路面承載力與耐久性達標。
Conduct deflection tests and permeability coefficient tests to ensure that the road surface's bearing capacity and durability meet the standards.
防護：
Security protection:
設置警示標志與導流設施，作業區封閉管理。
Set up warning signs and diversion facilities, and implement closed management of the work area.
操作人員需佩戴防塵口罩、耳塞及帽，定期接受設備操作培訓。
Operators are required to wear dust masks, earplugs, and safety helmets, and receive regular equipment operation training.
四、特殊工況應對策略
4、 Special working condition response strategy
低溫施工：
Low temperature construction:
當環境溫度低于10℃時，需采用溫拌添加劑或對舊料進行預熱處理。
When the ambient temperature is below 10 ℃, warm mix additives or preheating treatment of old materials should be used.
縮短再生料從拌合到碾壓的時間，避免溫度散失過快。
Shorten the time from mixing to rolling of recycled materials to avoid rapid temperature loss.
高含水率舊料：
High moisture content old materials:
通過翻曬或摻入干料調整含水率，確保再生料處于壓實狀態。
Adjust the moisture content by flipping or adding dry materials to ensure that the recycled material is in the best compacted state.
交通導改：
Traffic modification:
采用半幅施工、半幅通車方案，通過錐形標、水馬等設施劃分作業區。
Adopting a half width construction and half width traffic plan, the work area is divided by facilities such as conical markers and water horses.
冷再生路拌機施工需構建“設備-工藝-檢測-”四位一體管控體系，通過精細化操作與實時監測，確保再生路面質量。隨著綠色公路建設理念的深化，冷再生技術將向“智能化控制、全深度再生、多材料適配”方向發展，為道路維修提供更、可持續的解決方案。
The construction of cold recycling road mixer requires the establishment of a four in one control system of "equipment process testing environmental protection", which ensures the quality of recycled road surface through refined operation and real-time monitoring. With the deepening of the concept of green highway construction, cold recycling technology will develop towards "intelligent control, full depth recycling, and multi material adaptation", providing more efficient and sustainable solutions for road maintenance.
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