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              瀝青砼施工過程中施工縫的處理

              來源:http://www.kecengkeh.net/ 日期:2022-11-16
              瀝青混凝土路面具有行車舒適、維修方便等特點,因此在高等級公路建設中被廣泛使用。從實際施工來看,還有許多問題值得探討。那么下面來講講濟南瀝青砼施工過程中施工縫的處理事項。
              Asphalt concrete pavement is widely used in high-grade highway construction because of its comfortable driving and convenient maintenance. From the perspective of actual construction, there are still many problems worth discussing. Now let's talk about the treatment of construction joints during the asphalt concrete construction in Jinan.
              在瀝青混凝土路面工程施工的準備階段,原材料的質量檢查應當是質量控制工作的主要內容。在這個階段應當對選定的瀝青、石料、砂、礦粉按照規范要求進行質量檢查。
              In the preparation stage of asphalt concrete pavement construction, the quality inspection of raw materials should be the main content of quality control. At this stage, the selected asphalt, stone, sand and mineral powder shall be subject to quality inspection according to the specification requirements.
              粗集料由各種規格的碎石構成。在工作中,應根據所用混合料的類型確定碎石的規格。碎石應潔凈、干燥、表面粗糙,具有足夠的強度及耐磨耗性,并應有良好的近正六面體的顆粒形狀,與瀝青有良好的粘附性。
              Coarse aggregate is composed of crushed stone of various specifications. During the work, the specification of crushed stone shall be determined according to the type of mixture used. Crushed stone shall be clean, dry, rough in surface, with sufficient strength and wear resistance, and shall have good particle shape close to regular hexahedron, and have good adhesion with asphalt.
              瀝青混凝土的細集料宜采用優良的天然砂或機制砂,細集料應與瀝青有良好的粘結力,用酸性石料破碎的機制砂或石屑不宜用于高速公路和一級公路的瀝青面層,須使用時,應采用有效措施。
              Fine aggregate of asphalt concrete should be fine natural sand or machine-made sand. The fine aggregate should have good adhesion with asphalt. The machine-made sand or stone chips crushed with acid stone should not be used for the asphalt surface course of expressways and Class I highways. If necessary, effective measures should be taken.
              礦粉須是采用石灰巖或巖漿巖中的強基性巖石等憎性石料經磨細制成的。
              The mineral powder shall be made of hydrophobic stone materials such as limestone or strong basic rock in magmatic rock by grinding.
              濟南瀝青砼
              (1)縱向施工縫
              (1) Longitudinal construction joint
              攤鋪采用梯隊作業的縱縫采用熱接縫。施工時應將先鋪的混合料留下10~20cm暫不碾壓,作為后攤鋪部分的高程基準面??v縫應在后鋪部分攤鋪后立即進行碾壓,壓路機應大部分壓在已攤鋪碾壓好的路面上,僅有10~15cm壓在新鋪的路面上,然后逐漸移動跨縫碾壓以縫跡。
              The longitudinal joints for paving in echelon operation shall be hot joints. During construction, 10~20cm of the mixture paved first shall not be rolled temporarily as the elevation datum of the later paved part. The longitudinal joint shall be rolled immediately after the paving of the later part. The roller shall mostly roll on the paved and rolled road surface, and only 10~15cm shall be rolled on the newly paved road surface, and then gradually move the cross joint to roll to eliminate the seam.
              半幅施工不能采用熱接縫時,宜用切刀將已碾壓的前半幅切齊。鋪另半幅前須將縫邊緣清掃干凈,涂刷熱粘層瀝青。攤鋪時應重疊在已鋪層上5~10cm,攤鋪后用人工將攤鋪在前半幅上的混合料鏟走。碾壓時先在已壓實的路面上行駛,碾壓新鋪層10~15cm,然后逐漸移動跨過縱縫,將縱縫碾壓緊密。
              When hot joint cannot be used for half width construction, the first half of the rolled part should be cut with a knife. Before paving the other half, the joint edge must be cleaned and the hot tack coat asphalt must be applied. During paving, it shall overlap the paved layer for 5~10cm. After paving, the mixture paved on the first half shall be removed manually. When rolling, first drive on the compacted pavement, roll the newly paved layer for 10-15cm, and then gradually move across the longitudinal joint to compact the longitudinal joint.
              (2)橫向施工縫
              (2) Transverse construction joint
              橫向施工縫應與路中線垂直。相鄰兩幅及上下層的橫縫應錯開1m以上。高速公路和一級公路的上面層應采用平接縫,其中面層、下面層及其它公路的各層均可采用斜接縫。鋪筑接縫時,可在已壓實的部分上面鋪設一些熱混合料使之預熱軟化,以加強新舊混合料的粘結。但在開始碾壓前應將預熱用的混合料鏟除。
              The transverse construction joint shall be perpendicular to the road centerline. The transverse joints of two adjacent panels and upper and lower layers shall be staggered for more than 1m. The upper layer of expressway and Class I highway shall adopt flat joint, and the surface layer, lower layer and all layers of other highways can adopt inclined joint. When paving the joints, some hot mixtures can be laid on the compacted part to make it warm and soften, so as to strengthen the bonding of new and old mixtures. However, the mixture for preheating shall be removed before rolling.
              瀝青砼施工過程中施工縫的處理這個問題就講解到這里了,廠家提醒您不管是采購還是對其進行施工,提前了解好相關的信息內容,做到更高質量的施工。相關內容來我們這里http://www.kecengkeh.net咨詢吧!
              This is the end of the problem of construction joint treatment during asphalt concrete construction. The manufacturer reminds you to understand the relevant information in advance, whether purchasing or constructing, so as to achieve higher quality construction. Relevant content comes to us http://www.kecengkeh.net Consult!
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