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冷再生機出租淺談冷再生機在公路養(yǎng)護中作用!
來源:http://www.xintangt.com/ 日期:2020-08-13
  在對道路進行養(yǎng)護工作時,我們需要對原先的道路進行調(diào)查,以確保在使用冷再生機進行道路養(yǎng)護工作的順利進行。下面冷再生機出租就帶大家一起來看一下吧。
  In the road maintenance work, we need to investigate the original road, in order to ensure that the use of cold recycling machine road maintenance work smoothly. Let's take you to have a look at it.
  1、舊路調(diào)查
  1. Old road survey
  冷再生技術(shù)適用于大部分瀝青混凝土舊路大修與改建工程。先需要對舊路進行詳細的調(diào)查,主要包括以下內(nèi)容:
  Cold recycling technology is suitable for most of the old asphalt concrete road repair and reconstruction projects. First of all, a detailed investigation of the old road is needed, mainly including the following contents:
  1、對舊路結(jié)構(gòu)和歷年修補改造情況進行調(diào)查,了解路面病害情況,包括變形、裂縫、邊緣破壞等。
  1. To investigate the old road structure and repair and reconstruction over the years to understand the pavement diseases, including deformation, cracks, edge damage, etc.
  2、對舊路進行彎沉檢測,以分析舊路的破壞狀況和承載能力,確定重復利用舊路基層進行冷再生的必要性。
  2. In order to analyze the damage condition and bearing capacity of the old road by deflection detection, the necessity of cold recycling of old road base is determined.
  3、對舊路結(jié)構(gòu)層進行鉆芯取樣,以確定舊路結(jié)構(gòu)層的厚度及各層材料的工程特性。
  3. In order to determine the thickness of the old road structure layer and the engineering characteristics of each layer material, core drilling and sampling are carried out for the old road structure layer.
           冷再生機出租
  2、材料組成設(shè)計
  2. Material composition design
  通過試驗分析,我們認為冷再生層的性能與混合料級配有著顯著而密切的關(guān)系。如若舊料中4.75mm以上的粒料含量過低(<40%),則需加入部分級配的新骨料;若舊料中4.75mm 以上的粒料含量過高(>80%),則會導致細料(特別是<0.6mm 的集料)對空隙的填充不足,混合料強度偏低,則需在冷再生混合料中加入部分級配的細集料,以便形成具有良好級配的骨架密實結(jié)構(gòu),提高混合料的強度。但這無疑都會提高冷再生結(jié)構(gòu)層的造價,需與新建的結(jié)構(gòu)層進行經(jīng)濟比較以后再實施。
  Through the test and analysis, we think that the performance of cold recycled layer has a significant and close relationship with the gradation of mixture. If the content of particles above 4.75mm in old materials is too low (< 40%), it is necessary to add new aggregates with partial gradation; if the content of particles above 4.75mm in old materials is too high (> 80%), it will lead to fine materials (especially < 0.6mm) In order to form a well graded skeleton dense structure and improve the strength of the mixture, it is necessary to add some graded fine aggregate into the cold recycled mixture due to insufficient filling of voids and low strength of the mixture. But this will undoubtedly increase the cost of cold regeneration structure layer, which needs to be compared with the new structure layer before implementation.
  以上是有關(guān)冷再生機在公路養(yǎng)護中的作用,感謝您的閱讀,希望對您有所幫助,如您想要了解更多內(nèi)容歡迎點擊我們的http://www.xintangt.com官網(wǎng)首頁。
  The above is about the role of cold recycling machine in highway maintenance, thank you for your reading, hope to help you, if you want to know more, welcome to click our http://www.xintangt.com Home page of the official website.
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