在实际的道路基层冷再生施工作业过程中，主要用到的施工材料有沥青面层铣刨料、水泥和水等等。通常大部分施工单位在选择水泥时，由于考虑到水泥化热问题，所以一般都会采用硅酸盐水泥，或是矿渣硅酸盐水泥等，这是因为此类水泥含有的水泥化热量较少，能够防止施工裂缝的出现。

In the actual cold recycling construction of road base, the main construction materials used include asphalt surface milling materials, cement and water, etc. Generally, when most construction units choose cement, they usually use Portland cement, or slag Portland cement, etc. because the cement contains less heat of cementation, which can prevent the occurrence of construction cracks.

并且，施工单位还要对新入厂的水泥质量进行严格的控制，坚决不允许使用变质的水泥。其次，施工单位还需要确保水泥强度真正达到了规定标准要求，无论是水泥龄期，还是稳定性，都满足了工程施工要求。而一般水泥初凝时间都在3-5小时左右，后的终凝时间大概在6小时。

In addition, the construction unit shall strictly control the quality of new cement, and shall not allow the use of deteriorated cement. Secondly, the construction unit also needs to ensure that the cement strength truly meets the requirements of national standards, and that both the cement age and stability meet the construction requirements of the project. Generally, the initial setting time of cement is about 3-5 hours, and the final setting time is about 6 hours.

另外，道路基层冷再生施工工艺对于用水方面有着较高的要求，施工单位应该尽量采用饮用水，或是完全没有毒害物质的纯净水。再者，在对铣刨料选用时，也要确保料粒直径规格的一致，必须切实结合工程施工需要，选择出合适理想的铣刨料。后，碎石作为基层混合料中主要的构成材料，应当对其强度、压碎值等当面进行规范要求。

In addition, the road base cold regeneration construction process has high requirements for water, and the construction unit should try to use drinking water or pure water without toxic substances. In addition, when selecting milling materials, it is also necessary to ensure the consistency of material particle diameter and specification, and the appropriate and ideal milling materials must be selected in combination with the needs of project construction. As the main constituent material of the base course mixture, the strength and crushing value of the crushed stone shall be specified.

按照原有路基铣刨过的标高和冷再生混合料底新铺基层的设计标高及经试验段确定的松铺系数，将新铺底基层的摊铺高程计算出来，并进行施工放样作业。

The paving elevation of the newly paved subbase shall be calculated according to the milled elevation of the original subgrade, the design elevation of the newly paved cold recycled mixture subbase and the loose paving coefficient determined by the test section, and the construction setting out shall be carried out.

将原有路面存有的杂物清理干净，将边线也清理干净，同时将再生路段上面的井盖等结构物，将原有路面进行翻浆、车辙、沉陷等病害处理作业，确保原有路面的平整性。

Clean up the sundries on the original road surface and the sidelines. At the same time, remove the well covers and other structures on the recycled road section. Carry out the treatment of the original road surface for mud boiling, rutting, subsidence and other diseases to ensure the flatness of the original road surface.

在每平米新料添加量的计算中必须严格遵循原有路内再生深度的平均密度进行计算。按照每车料的多少进行其堆放距离的确定。在对每稳定层水泥用量计算时，必须严格遵循水泥剂量要求进行，并对水泥摆放的纵横间距进行确定。

In the calculation of new material addition per square meter, the average density of regeneration depth in the original road must be strictly followed. The stacking distance shall be determined according to the amount of each vehicle. When calculating the cement dosage per square meter of the stable layer, the cement dosage requirements must be strictly followed, and the vertical and horizontal spacing of cement placement shall be determined.

冷再生机租赁人员认为在原有路面上水车在冷再生机的推动下前行，遵循原有路面损坏情况及再生深度对行驶速度进行适当地调整及控制，通常都会将速度控制在每分钟6到12米，确保铣刨后料的级配不会产生较大的波动。

The leasing personnel of the cold recycling machine believe that the waterwheel moves forward under the promotion of the cold recycling machine on the original road surface, and the driving speed is properly adjusted and controlled according to the damage of the original road surface and the regeneration depth. Generally, the speed is controlled at 6 to 12 meters per minute, so as to ensure that the grading of milled materials will not fluctuate greatly.

在网裂较为严重的路段，必须将再生机组的行驶速度进行有效降低，并将铣刨转子的转速进行适量地提升。在再生机行驶中必须有工作人员跟随在其后面，以便对再生深度进行随时检查，同时还要对水泥含量及混合料的含水量进行检测，调整时，要与再生机工作人员相配合。

In the road section with serious net crack, the running speed of the regeneration unit must be effectively reduced, and the speed of the milling rotor must be appropriately increased. During the operation of the regenerator, there must be staff behind it to check the regeneration depth at any time. At the same time, the cement content and the water content of the mixture must be detected. When adjusting, it is necessary to cooperate with the staff of the regenerator.

在实际的施工过程中，施工单位必须加强做好质量控制管理工作，严格按照相关规范制度开展施工作业，对易出现的问题进行事先预防，进一步提升冷再生施工技术水平，从而促进公路工程建设的可持续发展。

In the actual construction process, the construction unit must strengthen the quality control management, carry out the construction operation in strict accordance with the relevant specifications and systems, prevent the easy problems in advance, and further improve the technical level of cold regeneration construction, so as to promote the sustainable development of highway engineering construction.

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