【正文】 Roll the control of temperature The temperature control of the pitch mixture is a key in the pitch road surface construction course, scene should have special messenger responsible for to e skip, after paving, before rolling, in rolling and roll temperature of the end test. Is it should go on most favorable under the high temperature in mixture to roll , generally force down in 120176。 Reply and press tightly and connect going on after pressing for the first time, should adopt the road roller of heavyduty tire , roll 45 times, the speed is 。C90176。t equip with roof beam not basic 2*16 piece flexible rubber wheel from head to foot,in front and at the back of roof beam not basic, at paver arm office knuckle joint not old, it can dispel by lower floor too some to level ,have road surface slope (before not passing roof beam not basic get) not vertical not original and can39。s levelling, the factory mixes the mixture paver to pave and build The construction of the semirigid basic unit of two gray broken stones , was used to adopting the land leveller homework in the past, its shorting is high Cheng, thickness is difficult to control, and make level repeatedly the surface is easy to emanate, at the same time the mixture is wasted more more too. Shanghai and Nanjing and owner , expressway of airport , according to standardize standard newly , put forward mixture concentrate factory on mix , import the paver not to pave the high demand built, it is that it can guarantee the mixture paved is even , the surface is levelled to put emphasis on importing the main reason of the paver, such indexes as Gao Cheng , verticalhorizontal slope , thickness ,etc. can meet the designing requirement . Is it import Model ABG paver is it build result to be best to pave , but domestic paver is it is it succeed in to pave to try on several times to practice has proved. To design thickness person who exceeds 30cm can divide into two is it build to pave , pave width control at 68m result better roughness having. Control the largest footpaths of the mixture and water content For improve at the basic level roughness and help paver is it build to pave, at the basic level mixture collect material heavy grain should be proper to reduce directly most. Because collect material grains of heavy footpath, mixture easy to is it emanate to produce, and to mix , pave wearing and tearing of equipment even heavy. So, reduce and collect the largest footpaths of material properly and favorable to the improvement of the paver homework and roughness of top surface at the basic level. In addition, the control of the water content of mixture construction is also very important, it influences the board body of the structure to take shape small that the water content is passed, it is difficult that the water content is too big to roll shaping, and apt to form the big wave of road surface, cause the roughness at the basic level to reduce, even cause the structure layer to shrink and fracture. Practice indicates , must begin from basic unit while improving the roughness of road surface of pitch , and the key of improving the construction quality at the basic level lies in adopting the superior construction machinery, if a grain of material factory of good stability mixes the equipment and imports the paver. Influence of 2 construction machinery homework Paver Accurate degree of basic steel wire and device It is in not constructing last layers of tightwire walking we, in, above layers of datum that walk snow prize last method, have received better result. Bottom surface layer before constructing, want piece draw handy on is it ask datum line , instrument of sensor to bear first(23mm steel wire rope), then it set up well all (from 10m),according to hanging wire that measure being the higher to confirm height , location of steel wire per of. Should measure , adjust conscientiously meticulously , check steel wire pulling force and can39。瀝青路面平整度是施工機(jī)械、人員素質(zhì)、操作水平的綜合反映，只有加強(qiáng)施工現(xiàn)場管理，精心組織施工，才能保證路面平整度，提高路面工程質(zhì)量。在同一級配條件下，厚度小的結(jié)構(gòu)層比厚度大的平整度好。 4 路面結(jié)構(gòu)類型與平整度的關(guān)系 施工中發(fā)現(xiàn)，采用相同的攤鋪機(jī)和相同的碾壓工藝，攤鋪不同類型的路面結(jié)構(gòu)層，其各自的平整度不同。由于車輛在高速公路上高速行駛時產(chǎn)生的沖擊力大，國產(chǎn)橡膠板式伸縮縫經(jīng)受不了大交通量高速行車的沖擊。 橋頭與伸縮縫的處理 平整度好的路面，必須與減少和消除橋頭跳車相結(jié)合，才能解決好高速公路的行車舒適問題。 現(xiàn)場人工修補(bǔ) 施工過程中，不論何種原因，只要是混合料中混雜有少量的枯料、花料，攤鋪到路面后就必須徹底挖除，換上合格的混合料。處理好接縫的關(guān)鍵是要舍得切除接頭，用 3m 直尺檢查端部平整度，以攤鋪層面直尺脫離點(diǎn)為界限，以切割機(jī)切縫挖除。 施工縫的處理 瀝青路面施工縫處理的好壞對平整度有一定的影響，往往連續(xù)攤鋪路 段平整度較好，而接縫處的一個點(diǎn)數(shù)據(jù)較差。 運(yùn)料車輛與攤鋪機(jī)的配合 攤鋪?zhàn)鳂I(yè)時，常因運(yùn)料車輛操作不熟練而與攤鋪機(jī)配合不協(xié)調(diào)，使混合料灑落在攤鋪機(jī)行走履帶前，如不及時清除會使攤鋪機(jī)左右晃動，造成自動調(diào)平系統(tǒng)工作仰角發(fā)生變化，影響路面平整度。攤鋪速度經(jīng)實(shí)踐比較后認(rèn)為：上面層應(yīng)控制在 2～ ／ min，中、下面層 2～ 4m／ min 為好。在施工過程中我們感到這是提高路面平整度的一個關(guān)鍵環(huán)節(jié)。只有加強(qiáng)拌和站管 理，保證連續(xù)供料，運(yùn)用中途不停機(jī)加油，操作手輪換休息等辦法，做到每天早晨開機(jī)，晚上收工關(guān)機(jī)，中途力爭不停機(jī)，以確保路面攤鋪?zhàn)鳂I(yè)連續(xù)不間斷。 3 施工過程中其它因素的影響 瀝青拌和站的生產(chǎn)能力應(yīng)與攤鋪能力相匹配 實(shí)踐證明，當(dāng)瀝青拌和站的生產(chǎn)能力與攤鋪機(jī)的攤鋪能力相匹配時，攤鋪機(jī)能連續(xù)、均勻、不間斷作業(yè)，此時路面平整度就好。鋼輪壓路機(jī)應(yīng)裝霧狀噴水裝置以防混合料粘輪，輪胎壓路機(jī)應(yīng)有專人負(fù)責(zé)用1∶3 的油水混合液噴灑輪胎表面，防止碾壓時將 瀝青混合料粘起形成路面不平整。 壓路機(jī)的正確使用 輪胎壓路機(jī)使用時，應(yīng)注意檢