資源再利用與再生設(shè)備將成趨勢

Resource reuse and regeneration equipment will become a trend

　　城市建設(shè)、城鎮(zhèn)化、新農(nóng)村建設(shè)、棚戶區(qū)改造等，產(chǎn)生很多的建筑垃圾，統(tǒng)計(jì)數(shù)據(jù)顯示，我國每年在城市建設(shè)施工過程中所產(chǎn)生的建筑垃圾呈現(xiàn)逐年增長的趨勢，這些建筑垃圾往往都采用填埋或露天堆放的方式進(jìn)行處理，不僅占用土地、污染水資源，還造成資源浪費(fèi)，若將其經(jīng)過資源化處置，則大部分可作為原材料回用到工程建設(shè)中去，形成良性循環(huán)，建筑垃圾資源化已成為解決城市建筑垃圾出路的途徑?，F(xiàn)在和將來，這些建筑垃圾都成為新的建筑材料的來源，也成為一個新的行業(yè)和新的賺錢方式。建筑廢棄物資源化產(chǎn)品已被列入可享受稅收優(yōu)惠政策的范圍，目前，全國很多地方都對建筑垃圾資源化給予大力度扶持。

Urban construction, urbanization, new rural construction, and shantytown renovation generate a lot of construction waste. Statistical data shows that the amount of construction waste generated in China's urban construction process is increasing year by year. These construction wastes are often treated by landfill or open-air stacking, which not only occupy land and pollute water resources, but also cause resource waste. If they are disposed of as resources, most of them can be reused as raw materials in engineering construction, forming a virtuous cycle. The resource utilization of construction waste has become the only way to solve the problem of urban construction waste. Now and in the future, these construction waste will become a new source of building materials, as well as a new industry and a new way of making money. The resource utilization products of construction waste have been included in the scope of tax preferential policies that can be enjoyed by the state. Currently, many parts of the country provide strong support for the resource utilization of construction waste.

　　嚴(yán)格的政策，再生材料的利用迫在眉睫，因此促進(jìn)了公路工程舊材料冷再生、熱再生施工工藝的發(fā)展。冷再生、熱再生，又可以分就地和廠拌兩種形式，其的優(yōu)勢是施工成本低、工期短、對交通影響小。公路舊路改造、翻修和養(yǎng)護(hù)過程中，會產(chǎn)生大量的瀝青、水穩(wěn)等舊材料，這些舊材料或被丟棄或用來做場地硬化，浪費(fèi)資源也污染環(huán)境。中東部經(jīng)濟(jì)發(fā)達(dá)地區(qū)，無論是高等級公路還是鄉(xiāng)村公路，已經(jīng)相當(dāng)發(fā)達(dá)與完善，改造、翻修和養(yǎng)護(hù)的工程將增多，適合發(fā)展冷再生和熱再生的工藝。

Strict environmental policies and the urgent use of recycled materials have promoted the development of cold and hot recycling construction techniques for old materials in highway engineering. Cold regeneration and hot regeneration can be divided into two forms: on-site and factory mixing. Their biggest advantages are low construction costs, short construction periods, and minimal impact on traffic. During the process of renovating, renovating, and maintaining old roads, a large amount of old materials such as asphalt and water stabilization are generated. These old materials are either discarded or used for site hardening, wasting resources and polluting the environment. In the economically developed regions of the Middle East, whether it is high-grade highways or rural roads, they have become quite developed and improved. The number of renovation, renovation, and maintenance projects will increase, making it suitable for the development of cold and hot regeneration processes.

　?。?）就地冷再生就是指利用瀝青再生設(shè)備將舊瀝青路面材料就地打碎，并加入適當(dāng)?shù)臑r青及改性材料后拌和壓實(shí)，以舊路面材料為主修筑道路的技術(shù)。

(1) In situ cold recycling refers to the technology of using asphalt recycling equipment to crush old asphalt pavement materials on site, adding appropriate asphalt and modified materials, mixing and compacting them, and building roads mainly with old pavement materials.

　　廠拌冷再生是將回收瀝青路面材料運(yùn)拌和廠，經(jīng)破碎、篩分后，以一定的比例與新集料、活性填料、水分進(jìn)行常溫拌合，常溫鋪筑形成路面結(jié)構(gòu)層的瀝青路面再生技術(shù)。

Plant mixed cold recycling is a technology for recycling asphalt pavement materials by transporting them to a mixing plant, crushing and screening them, and then mixing them with new aggregates, active fillers, and moisture at room temperature in a certain proportion to form a pavement structure layer.

　　（2）就地?zé)嵩偕且环N預(yù)防性養(yǎng)護(hù)技術(shù)。采用專用的就地?zé)嵩偕O(shè)備，對瀝青路面進(jìn)行加熱、銑刨，就地?fù)饺胍欢〝?shù)量的新瀝青、新瀝青混合料、再生劑等，經(jīng)熱拌和、攤鋪、碾壓等工序，一次性實(shí)現(xiàn)對表面一定深度范圍內(nèi)的舊瀝青混凝土路面再生的技術(shù)。它可分為復(fù)拌再生、加鋪再生兩種。

(2) Geothermal regeneration is a preventive maintenance technology. Using specialized geothermal regeneration equipment, the asphalt pavement is heated and milled, and a certain amount of new asphalt, new asphalt mixture, regeneration agent, etc. are added on-site. Through hot mixing, paving, rolling and other processes, the technology of regenerating the old asphalt concrete pavement within a certain depth range of the surface is achieved in one go. It can be divided into two types: mixed recycling and overlay recycling.

　　a. 復(fù)拌再生：將舊瀝青路面加熱、銑刨，就地?fù)郊右欢〝?shù)量的再生劑、新瀝青、新瀝青混合料，經(jīng)熱態(tài)拌和、攤鋪、壓實(shí)成型。

A. a Re mixing and regeneration: Heating and milling the old asphalt pavement, adding a certain amount of rejuvenator, new asphalt, and new asphalt mixture on site, and then hot mixing, paving, and compaction to form.

　　b. 加鋪再生：將舊瀝青路面加熱、銑刨，就地?fù)郊右欢〝?shù)量的新瀝青混合料、再生劑、拌和形成再生混合料，利用再生復(fù)拌機(jī)的熨平板攤鋪再生混合料，利用再生復(fù)拌機(jī)的第二熨平板同時將新瀝青混合料攤鋪于再生混合料之上，兩層一起壓實(shí)成型。

B. b Overlay and regeneration: Heat and mill the old asphalt pavement, add a certain amount of new asphalt mixture, rejuvenator, and mix on site to form a recycled mixture. Use the first ironing plate of the recycling mixer to pave the recycled mixture, and use the second ironing plate of the recycling mixer to simultaneously spread the new asphalt mixture on top of the recycled mixture. The two layers are compacted and formed together.

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