冷再生机施工的质量控制是一个涵盖施工前、施工中及施工后的全过程管理体系。为了确保再生路面的强度、稳定性和使用寿命，需重点把控以下质量控制要点：

The quality control of cold recycling machine construction is a comprehensive management system that covers the entire process before, during, and after construction. In order to ensure the strength, stability, and service life of recycled road surfaces, it is necessary to focus on the following quality control points:

一、 施工前准备阶段的质量控制

1、 Quality control during the preparation phase before construction

旧路面状况勘察与处理：施工前需全面考察旧路面的结构状况与病害分布，对坑槽、裂缝等局部病害进行预处理，确保旧路面清洁、无杂物。

Survey and treatment of old pavement conditions: Before construction, a comprehensive investigation of the structural condition and distribution of defects of the old pavement should be carried out, and local defects such as potholes and cracks should be pre treated to ensure that the old pavement is clean and free of debris.

材料质量把关：严格检验旧路面回收料（RAP）的级配与含水率，同时确保新添加的集料、水泥、矿粉及再生剂（如泡沫沥青、乳化沥青）各项技术指标符合设计要求。

Material quality control: strictly inspect the gradation and moisture content of recycled asphalt (RAP) of old pavement, and ensure that the technical indicators of newly added aggregates, cement, mineral powder and recycling agents (such as foam asphalt and emulsified asphalt) meet the design requirements.

配合比设计与验证：通过室内试验确定再生混合料的配合比（包括旧料掺配比例、结合料剂量、最佳含水率等），并铺筑试验段验证其7d无侧限抗压强度等核心指标。

Mix proportion design and verification: Determine the mix proportion of recycled mixture (including old material mixing ratio, binder dosage, optimal moisture content, etc.) through indoor testing, and lay a test section to verify its core indicators such as 7-day unconfined compressive strength.

设备与人员评估：检查冷再生机、压路机等设备的性能与液压系统压力，确保计量添加系统精准；同时评估施工人员的技术水平，确保操作规范。

Equipment and personnel evaluation: Check the performance and hydraulic system pressure of equipment such as cold recycling machines and rollers to ensure accurate measurement and addition systems; Simultaneously evaluate the technical level of construction personnel to ensure standardized operation.

二、 施工过程中的质量控制要点

2、 Key points of quality control during the construction process

铣刨与拌和控制：

Milling and mixing control:

深度与速度控制：精准控制铣刨深度（误差控制在±3mm以内），并根据路面损坏状况合理控制冷再生机行进速度（通常建议为4~6m/min，网裂严重地段需减速）。

Depth and speed control: Accurately control the milling depth (with an error controlled within ± 3mm), and reasonably control the speed of the cold recycling machine according to the condition of road damage (usually recommended to be 4-6m/min, and slow down in areas with severe mesh cracking).

拌和均匀度：优化铣刨和拌和转子的转速，确保旧料、新料、结合料与水充分拌和，防止材料离析。

Mixing uniformity: Optimize the speed of milling and mixing rotors to ensure thorough mixing of old, new, and binder materials with water, preventing material segregation.

关键参数实时监控：

Real time monitoring of key parameters:

含水量控制：再生混合料的含水量对压实度至关重要，需实时检测并根据水分蒸发情况及时补充少量水，保持表面湿润。

Moisture content control: The moisture content of the recycled mixture is crucial for compaction, and it needs to be detected in real time and supplemented with a small amount of water in a timely manner according to the evaporation of moisture to keep the surface moist.

材料配比精度：严格监控泡沫沥青、乳化沥青、水泥及矿粉的添加量，确保其偏差在允许范围内（如泡沫沥青用量偏差控制在±0.25%以内）。

Material proportioning accuracy: strictly monitor the addition amount of foam asphalt, emulsified asphalt, cement and mineral powder to ensure that the deviation is within the allowable range (for example, the deviation of foam asphalt amount is controlled within ± 0.25%).

碾压与压实控制：

Rolling and compaction control:

遵循“初压、复压、终压”的规范流程，采用大吨位压路机提供充足的压实功。

Following the standardized process of "initial compaction, re compaction, and final compaction", a large tonnage roller is used to provide sufficient compaction work.

实时监控并调整碾压速度、遍数及重叠宽度，确保再生层压实度及空隙率满足设计标准。

Real time monitoring and adjustment of rolling speed, number of passes, and overlap width to ensure that the compaction degree and void ratio of the recycled layer meet the design standards.

三、 施工后的质量检查与评估

3、 Quality inspection and evaluation after construction

压实度与结构性能检测：施工完成后，通过灌砂法或核子密度仪检测再生层的干密度与压实度（通常要求≥98%或99%）；必要时进行取芯检测（如泡沫沥青再生养生1-2天后取芯）。

Compaction and structural performance testing: After construction is completed, the dry density and compaction degree of the recycled layer are tested by sand filling method or nuclear density meter (usually required to be ≥ 98% or 99%); If necessary, conduct coring detection (such as coring 1-2 days after the regeneration and curing of foam asphalt).

强度与水稳定性试验：现场取样成型试件，测试劈裂强度、冻融劈裂强度比及马歇尔稳定度，确保其抗水损害能力和高温稳定性达标。

Strength and water stability test: On site sampling and forming test specimens are used to test the splitting strength, freeze-thaw splitting strength ratio, and Marshall stability to ensure that their resistance to water damage and high-temperature stability meet the standards.

外观与几何尺寸检验：

Appearance and geometric dimension inspection:

外观检查：目测再生层表面应平整密实，无松散、裂缝、推移、粗细料明显离析及碾压轮迹等缺陷。

Appearance inspection: The surface of the regenerated layer should be visually flat and dense, without defects such as looseness, cracks, displacement, obvious segregation of coarse and fine materials, and rolling wheel marks.

几何尺寸：使用专业仪器检测路面平整度（如最大间隙≤8mm）、厚度、宽度、横坡度及纵断面高程，确保各项指标符合工程验收标准。

Geometric dimensions: Use professional instruments to detect road surface flatness (such as maximum clearance ≤ 8mm), thickness, width, cross slope, and longitudinal elevation to ensure that all indicators meet the engineering acceptance standards.

本文由冷再生机租赁友情奉献.更多有关的知识请点击:https://www.sddhfjx.com真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

This article is a friendly contribution from Cold Recycling Machine Rental For more information, please click: https://www.sddhfjx.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.