對(duì)于公路項(xiàng)目施工而言，采用水泥穩(wěn)定碎石技術(shù)，其主要原理為根據(jù)一定比例混合碎石、凝膠與灰漿等材料，采用嵌擠與壓實(shí)相結(jié)合的原理進(jìn)行壓實(shí)，對(duì)出現(xiàn)的孔隙采用足量的灰漿與細(xì)集料填充。那么公路施工中應(yīng)用水泥穩(wěn)定碎石的相關(guān)準(zhǔn)備工作怎么樣呢？
For the construction of highway projects, the cement stabilized macadam technology is adopted. Its main principle is to mix macadam, gel and mortar in a certain proportion, and use the principle of combination of embedment and compaction to compact. The pores that appear are filled with sufficient mortar and fine aggregate. How about the preparation work related to the application of cement stabilized macadam in highway construction?
在公路施工項(xiàng)目應(yīng)用水泥穩(wěn)定碎石前，要認(rèn)真檢查項(xiàng)目基層施工質(zhì)量是否達(dá)標(biāo)，一旦施工質(zhì)量不符合標(biāo)準(zhǔn)，直接影響到項(xiàng)目整體施工質(zhì)量。項(xiàng)目基層施工質(zhì)量檢測(cè)主要包含：檢查其寬度、平整度、坡度、壓實(shí)狀況及外觀(guān)等，必須要符合要求規(guī)定，以此提高基層施工質(zhì)量。
Before applying cement stabilized macadam in highway construction projects, it is necessary to carefully check whether the construction quality of the project base meets the standard. Once the construction quality does not meet the standard, it will directly affect the overall construction quality of the project. The quality inspection of project base construction mainly includes: checking its width, flatness, slope, compaction condition and appearance, which must meet the requirements, so as to improve the quality of base construction.
在公路工程施工中，施工前期準(zhǔn)備與放樣同等重要，采用全站儀設(shè)備測(cè)定路面中線(xiàn)，分別在直線(xiàn)段/20m與曲線(xiàn)段/10m處設(shè)置木樁，在距路邊緣外側(cè)半米位置設(shè)置指示樁，便于項(xiàng)目進(jìn)行水平策略，同時(shí)選用紅漆進(jìn)行標(biāo)注，并在紅漆涂刷位置增加鋼絲繩，根據(jù)施工現(xiàn)場(chǎng)實(shí)際環(huán)境與路面設(shè)計(jì)方案，準(zhǔn)確設(shè)計(jì)路面邊線(xiàn)。
In the construction of highway engineering, the preparation in the early stage of construction is as important as setting out. The total station equipment is used to measure the center line of the pavement. Wooden piles are set at the straight section /20m and curve section /10m respectively, and indicator piles are set at the position half a meter away from the outside of the road edge to facilitate the horizontal strategy of the project. At the same time, red paint is selected for marking, and steel wire rope is added at the position where red paint is painted. According to the actual environment of the construction site and the pavement design scheme, Accurately design the pavement sideline.
水泥穩(wěn)定碎石被應(yīng)用于實(shí)際施工中前，要確保其配置的合理性，通常采用穩(wěn)定土廠(chǎng)拌合設(shè)備與方法相結(jié)合，嚴(yán)格依照實(shí)驗(yàn)配比選用配料配置水泥穩(wěn)定碎石。由于這一過(guò)程中水分會(huì)損失，因此在方案設(shè)計(jì)中，含水量要高出佳量0.5~1%，但水泥劑量不能改變。
Before the cement stabilized macadam is applied in the actual construction, it is necessary to ensure the rationality of its configuration. Usually, the mixing equipment and method of the stabilized soil plant are combined, and the ingredients are selected and configured in strict accordance with the experimental proportion. Due to the loss of water in this process, in the scheme design, the water content should be 0.5~1% higher than the optimal amount, but the cement dosage cannot be changed.

采用拌合機(jī)調(diào)配這些混合原材料，保證配置標(biāo)準(zhǔn)，達(dá)到無(wú)花面、花團(tuán)及灰條。待這些混合物材料拌合完成后，要及時(shí)去除其中含有的粗細(xì)顆粒物，如果情況不理想，則要進(jìn)行二次拌合，直到達(dá)到標(biāo)準(zhǔn)后方可及時(shí)將其運(yùn)輸至施工現(xiàn)場(chǎng)，并進(jìn)行攤鋪與壓實(shí)施工工藝。
The mixing machine is used to mix these mixed raw materials, so as to ensure the configuration standard and achieve no flower surface, flower ball and ash strip. After the mixing of these mixture materials is completed, the coarse and fine particles contained in them should be removed in time. If the situation is not ideal, the second mixing should be carried out, and they can be transported to the construction site in time until they meet the standard, and the paving and compaction construction process should be carried out.
濟(jì)南水泥穩(wěn)定碎石廠(chǎng)家提醒大家，必須要注意的是，在拌合物運(yùn)輸中要均勻裝載，根據(jù)實(shí)際情況合理選擇運(yùn)輸車(chē)輛。一般，水泥穩(wěn)定碎石從拌合-攤鋪-壓實(shí)，整個(gè)過(guò)程不超過(guò)3h，特別是要低于拌合物終凝固實(shí)踐，因此自卸運(yùn)輸車(chē)為合適，此外在運(yùn)輸中要在混合物上覆蓋塑料薄膜，以防水分蒸發(fā)。
Jinan cement stabilized macadam manufacturer reminds everyone that it must be noted that the mixture should be evenly loaded during transportation, and the transportation vehicles should be reasonably selected according to the actual situation. Generally, the whole process of mixing paving compaction of cement stabilized macadam shall not exceed 3h, especially lower than the final setting practice of the mixture. Therefore, dump trucks are suitable. In addition, plastic films shall be covered on the mixture during transportation to prevent evaporation.
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