冷再生機銑刨技術(shù)是道路養(yǎng)護(hù)領(lǐng)域的一項革新工藝，其核心在于通過專用機械在常溫環(huán)境下對舊瀝青路面進(jìn)行處理。該技術(shù)集銑刨、破碎、再生料拌和及攤鋪功能于一體，能夠針對路面面層及部分基層實施精準(zhǔn)作業(yè)。其工作原理依托于高速旋轉(zhuǎn)的銑刨轉(zhuǎn)子，該轉(zhuǎn)子搭載合金刀具，以垂直或水平進(jìn)給方式切入舊路面，將老化瀝青層與基層材料剝離成細(xì)小顆粒。與此同時，再生機通過智能噴灑系統(tǒng)按比例注入乳化瀝青、泡沫瀝青或水泥等穩(wěn)定劑，配合精確計量的水，在攪拌倉內(nèi)與銑刨料充分混合。這一過程不僅實現(xiàn)了舊料的100%循環(huán)利用，更通過級配優(yōu)化技術(shù)，補充了原路面缺失的骨料成分，使再生混合料性能達(dá)到或超過新建路面標(biāo)準(zhǔn)。

　　Cold recycling machine milling technology is an innovative process in the field of road maintenance, whose core is to efficiently treat old asphalt pavement at room temperature through specialized machinery. This technology integrates milling, crushing, mixing of recycled materials, and paving functions, and can implement precise operations for road surface layers and some base layers. Its working principle relies on a high-speed rotating milling rotor, which is equipped with alloy cutting tools and cuts into the old road surface in a vertical or horizontal feed manner, peeling the aged asphalt layer and base material into small particles. At the same time, the regenerator will inject stabilizing agents such as emulsified asphalt, foam asphalt or cement in proportion through the intelligent spraying system, and mix with milled materials in the mixing bin with accurately measured water. This process not only achieves 100% recycling of old materials, but also supplements the missing aggregate components of the original road surface through gradation optimization technology, making the performance of recycled mixtures meet or exceed the standards of new road surfaces.

　　該技術(shù)的作業(yè)優(yōu)勢體現(xiàn)在多個維度。相較于傳統(tǒng)熱再生工藝，冷再生機銑刨無需加熱環(huán)節(jié)，能耗降低60%以上，且施工過程中無有害氣體排放，符合綠色施工理念。從效率層面分析，單機日處理面積可達(dá)8000，是人工破碎方式的20倍。更重要的是，經(jīng)冷再生處理的路面結(jié)構(gòu)層，其抗車轍能力提升40%，水穩(wěn)性指標(biāo)優(yōu)于普通水穩(wěn)基層，使用壽命延長3-5年。

　　The homework advantages of this technology are reflected in multiple dimensions. Compared to traditional hot recycling processes, cold recycling machines for milling and planing do not require heating, reducing energy consumption by more than 60%, and there are no harmful gas emissions during the construction process, which is in line with the concept of green construction. From an efficiency perspective, the daily processing area of a single machine can reach 8000 square meters, which is 20 times that of manual crushing methods. More importantly, the road structure layer treated with cold recycling has a 40% increase in anti rutting ability, better water stability indicators than ordinary water stable base layers, and an extended service life of 3-5 years.

　　實際操作中，技術(shù)人員需嚴(yán)格把控三項關(guān)鍵參數(shù)。是銑刨深度控制，通過激光測距系統(tǒng)實時監(jiān)測，確保誤差控制在±5毫米以內(nèi)，避免破壞完好基層。其次是行走速度調(diào)節(jié)，根據(jù)舊料老化程度，在2-6米/分鐘范圍內(nèi)動態(tài)調(diào)整，保證銑刨料級配連續(xù)性。是穩(wěn)定劑摻量控制，采用雙計量泵系統(tǒng)，乳化瀝青誤差≤2%，水泥撒布量誤差≤1.5%。

　　In practical operation, technicians need to strictly control three key parameters. Firstly, the milling depth control is achieved through real-time monitoring using a laser ranging system, ensuring that the error is controlled within ± 5 millimeters and avoiding damage to the intact base layer. Secondly, the walking speed is adjusted dynamically within the range of 2-6 meters per minute according to the aging degree of the old material, ensuring the continuity of the milling material grading. Finally, the stabilizer dosage control adopts a dual metering pump system, with emulsified asphalt error ≤ 2% and cement spreading error ≤ 1.5%.

　　在特殊路況處理方面，該技術(shù)展現(xiàn)出的適應(yīng)性。針對車轍病害路段，可通過加密銑刨刀具排列，形成波浪形切割面，增強新舊料咬合度；對于裂縫密集區(qū)域，則采用分層銑刨工藝，先剝離表層再處理基層裂縫，配合纖維增強型乳化瀝青，使抗裂性能提升70%。

　　In terms of handling special road conditions, this technology demonstrates excellent adaptability. For road sections with rutting diseases, the arrangement of milling and planing tools can be increased to form a wavy cutting surface, enhancing the bite between new and old materials; For areas with dense cracks, a layered milling process is used to first peel off the surface layer and then treat the cracks in the base layer. Combined with fiber-reinforced emulsified asphalt, the crack resistance performance is improved by 70%.

　　質(zhì)量控制環(huán)節(jié)，需遵循“三檢制度”：銑刨后立即進(jìn)行含水量快速檢測，確保在5%-7%區(qū)間；攤鋪時采用核子密度儀跟蹤檢測，壓實度達(dá)標(biāo)率需達(dá)98%以上；養(yǎng)生期結(jié)束后，運用落錘式彎沉儀評估結(jié)構(gòu)層強度，承載能力應(yīng)滿足設(shè)計要求。

　　In the quality control process, it is necessary to follow the "three inspection system": immediately conduct a rapid moisture content test after milling to ensure that it is within the optimal range of 5% -7%; During paving, a nuclear density meter is used for tracking and detection, and the compaction compliance rate must reach 98% or above; After the health preservation period, the structural layer strength should be evaluated using a drop hammer deflectometer, and the bearing capacity should meet the design requirements.

　　隨著材料科學(xué)的進(jìn)步，新型冷再生技術(shù)已實現(xiàn)功能拓展。例如，添加橡膠粉改性劑的再生料，可將行車噪音降低5分貝；摻入相變材料的智能型再生層，可自動調(diào)節(jié)路面溫度，延緩反射裂縫產(chǎn)生。這些創(chuàng)新應(yīng)用，正推動冷再生機銑刨技術(shù)向多功能、智能化方向演進(jìn)，為道路可持續(xù)發(fā)展提供有力支撐。

　　With the advancement of materials science, new cold recycling technologies have achieved functional expansion. For example, adding rubber powder modifier to recycled materials can reduce driving noise by 5 decibels; The intelligent regeneration layer mixed with phase change materials can automatically adjust the road surface temperature and delay the occurrence of reflective cracks. These innovative applications are driving the evolution of cold recycling machine milling technology towards multifunctionality and intelligence, providing strong support for sustainable road development.

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