在實(shí)際的道路基層冷再生施工作業(yè)過程中，主要用到的施工材料有瀝青面層銑刨料、水泥和水等等。通常大部分施工單位在選擇水泥時(shí)，由于考慮到水泥化熱問題，所以一般都會(huì)采用硅酸鹽水泥，或是礦渣硅酸鹽水泥等，這是因?yàn)榇祟愃嗪械乃嗷療崃枯^少，能夠防止施工裂縫的出現(xiàn)。

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，施工單位還要對(duì)新入廠的水泥質(zhì)量進(jìn)行嚴(yán)格的控制，堅(jiān)決不允許使用變質(zhì)的水泥。其次，施工單位還需要確保水泥強(qiáng)度真正達(dá)到了規(guī)定標(biāo)準(zhǔn)要求，無論是水泥齡期，還是穩(wěn)定性，都滿足了工程施工要求。而一般水泥初凝時(shí)間都在3-5小時(shí)左右，后的終凝時(shí)間大概在6小時(shí)。

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，道路基層冷再生施工工藝對(duì)于用水方面有著較高的要求，施工單位應(yīng)該盡量采用飲用水，或是完全沒有毒害物質(zhì)的純凈水。再者，在對(duì)銑刨料選用時(shí)，也要確保料粒直徑規(guī)格的一致，必須切實(shí)結(jié)合工程施工需要，選擇出合適理想的銑刨料。后，碎石作為基層混合料中主要的構(gòu)成材料，應(yīng)當(dāng)對(duì)其強(qiáng)度、壓碎值等當(dāng)面進(jìn)行規(guī)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.

按照原有路基銑刨過的標(biāo)高和冷再生混合料底新鋪基層的設(shè)計(jì)標(biāo)高及經(jīng)試驗(yàn)段確定的松鋪系數(shù)，將新鋪底基層的攤鋪高程計(jì)算出來，并進(jìn)行施工放樣作業(yè)。

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.

將原有路面存有的雜物清理干凈，將邊線也清理干凈，同時(shí)將再生路段上面的井蓋等結(jié)構(gòu)物，將原有路面進(jìn)行翻漿、車轍、沉陷等病害處理作業(yè)，確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計(jì)算中必須嚴(yán)格遵循原有路內(nèi)再生深度的平均密度進(jìn)行計(jì)算。按照每車料的多少進(jìn)行其堆放距離的確定。在對(duì)每穩(wěn)定層水泥用量計(jì)算時(shí)，必須嚴(yán)格遵循水泥劑量要求進(jìn)行，并對(duì)水泥擺放的縱橫間距進(jìn)行確定。

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.

冷再生機(jī)租賃人員認(rèn)為在原有路面上水車在冷再生機(jī)的推動(dòng)下前行，遵循原有路面損壞情況及再生深度對(duì)行駛速度進(jìn)行適當(dāng)?shù)卣{(diào)整及控制，通常都會(huì)將速度控制在每分鐘6到12米，確保銑刨后料的級(jí)配不會(huì)產(chǎn)生較大的波動(dòng)。

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.

在網(wǎng)裂較為嚴(yán)重的路段，必須將再生機(jī)組的行駛速度進(jìn)行有效降低，并將銑刨轉(zhuǎn)子的轉(zhuǎn)速進(jìn)行適量地提升。在再生機(jī)行駛中必須有工作人員跟隨在其后面，以便對(duì)再生深度進(jìn)行隨時(shí)檢查，同時(shí)還要對(duì)水泥含量及混合料的含水量進(jìn)行檢測(cè)，調(diào)整時(shí)，要與再生機(jī)工作人員相配合。

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.

在實(shí)際的施工過程中，施工單位必須加強(qiáng)做好質(zhì)量控制管理工作，嚴(yán)格按照相關(guān)規(guī)范制度開展施工作業(yè)，對(duì)易出現(xiàn)的問題進(jìn)行事先預(yù)防，進(jìn)一步提升冷再生施工技術(shù)水平，從而促進(jìn)公路工程建設(shè)的可持續(xù)發(fā)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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