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1、水泥砼道路面層施工方案砼路面的施工工藝流程如下：上基礎(chǔ)驗(yàn)為合格?室內(nèi)外試驗(yàn)完畢?安裝模板？砼拌和？砼運(yùn)輸入倉?平板、插入式振動(dòng)器振搗？初平？微振動(dòng)梁振島?二次找平?真空吸水?表面處理磨漿？推光？壓痕？養(yǎng)護(hù)?鋸縫？嵌縫等. 一、模板工程 1、安裝 模板采用鋼槽鋼，高度同路面結(jié)構(gòu)層同高，采用人工安裝。砼路面兩側(cè)模板安裝好壞，直接影響平整度，模板安裝不牢（包括基礎(chǔ)和加固支撐）在振島時(shí)容易變樣，特別是用振動(dòng)梁振平時(shí)，兩側(cè)模板的高程是控制砼面形狀的主要因素，兩側(cè)模板牢固，橫坡合格率高、平整，縱向模板接頭處要平順，不變形,縱向平整度質(zhì)量好，直順度好。所以說模板安裝質(zhì)量是保證路面平整度第一因素。 2、模板的2、拆除 模板拆除的時(shí)限應(yīng)根據(jù)路面結(jié)構(gòu)物的結(jié)構(gòu)類型確定,須待到規(guī)范規(guī)定的砼強(qiáng)度值后方可拆模。 木模板拆除應(yīng)使用專用工具,按各類模板結(jié)構(gòu)支撐所確定的程序小心仔細(xì)地進(jìn)行，避免對(duì)模板及砼面的損傷. 拆除后的模板應(yīng)分別堆放,予以標(biāo)識(shí),并加以維護(hù)保養(yǎng),以備再用. 二、鋼筋工程 本工程鋼筋主要是傳力桿和角隅鋼筋,量少，結(jié)構(gòu)簡單，加工方便.方便采用廠加工，運(yùn)到現(xiàn)場人工安裝。 Functions of the regulation in the presence of the cross overlapping， departments, units should promptly pass gas， timel3、y reporting， never shuffle disputes over trifles， affect the work。 Department of municipal and district and the units are to joint task. Package linked to true packets, not only to the idea， way， also output， money. During the comprehensive improvement， various organs and institutions to each half o4、ut half day time, the organization of cadresWorkers to joint area to carry out compulsory labor, to help the old people clean up garbage， remediation of environmental remediation, demonstration masses， close relations between cadres and the masses. Area should take the initiative to assume the task 5、of investigating。 The county to apanage management responsibility， within the jurisdiction of the work as soon as possible to organize a dragnet investigation， find out the existing problem of regional location and scale, in accordance with the size of the problem and arrangement of the cycle of rem6、ediation and the city, the establishment of key problem ledger, discharge schedule, a pin number。 The township, streets and villages, the community would like to play the main role, fulfill its responsibility to reveal all the details, launch an indepth， meticulous work， the quality and quantity of 7、the completion of a comprehensive remediation tasks. 1、鋼筋的進(jìn)場及檢驗(yàn) 鋼筋應(yīng)根據(jù)施工詳圖及進(jìn)度計(jì)劃要求組織鋼筋進(jìn)場。進(jìn)場后堆放在鋼筋堆放場，并予以標(biāo)識(shí)。鋼筋應(yīng)有出廠合格證，進(jìn)場后應(yīng)按規(guī)范要求取樣復(fù)檢，合格后方可使用到本工程上。 2、鋼筋加工 鋼筋加工集中在工地鋼筋加工廠內(nèi)進(jìn)行。 1)鋼筋除銹、調(diào)直 鋼筋下料加工前應(yīng)先進(jìn)行除銹、調(diào)直處理。清除鋼筋表面的油漬、漆污和浮皮、鐵銹等，并用鋼筋調(diào)直機(jī)將彎曲的鋼筋調(diào)直，鋼筋除銹主要結(jié)合鋼筋調(diào)直一起進(jìn)行,在鋼筋調(diào)直過程中除銹，必要時(shí)輔以機(jī)械、手工除銹。 2）鋼筋配料 鋼筋加工前仔細(xì)閱讀施工詳圖和設(shè)計(jì)修8、改通知，結(jié)合澆筑部位的分層分塊，兼顧砼入倉方式，并根據(jù)鋼筋運(yùn)輸、安裝方法及所采用的接頭形式，分解制定鋼筋下料加工單. 3)鋼筋切斷 主要采用鋼筋切斷機(jī)切斷鋼筋。切斷時(shí)將同規(guī)格鋼筋按不同長度長短搭配，統(tǒng)籌排料,一般應(yīng)先斷長料，后斷短料，減少短頭，減少損耗。斷料時(shí)在工作臺(tái)上標(biāo)出尺寸刻線并設(shè)置控制斷料尺寸用的擋板，避免用短尺量長料. 4)鋼筋彎曲成型 利用鋼筋彎曲機(jī)按要求彎曲成型。 Functions of the regulation in the presence of the cross overlapping, departments， units should promptly pass 9、gas， timely reporting, never shuffle disputes over trifles， affect the work。 Department of municipal and district and the units are to joint task. Package linked to true packets, not only to the idea, way, also output, money。 During the comprehensive improvement， various organs and institutions to e10、ach half out half day time, the organization of cadresWorkers to joint area to carry out compulsory labor, to help the old people clean up garbage， remediation of environmental remediation, demonstration masses， close relations between cadres and the masses。 Area should take the initiative to assume11、 the task of investigating. The county to apanage management responsibility, within the jurisdiction of the work as soon as possible to organize a dragnet investigation， find out the existing problem of regional location and scale， in accordance with the size of the problem and arrangement of the cy12、cle of remediation and the city, the establishment of key problem ledger, discharge schedule， a pin number。 The township， streets and villages， the community would like to play the main role, fulfill its responsibility to reveal all the details, launch an in-depth， meticulous work， the quality and q13、uantity of the completion of a comprehensive remediation tasks. 5）鋼筋焊接 加工場內(nèi)鋼筋采用閃光對(duì)焊機(jī)進(jìn)行連續(xù)閃光焊.應(yīng)合理選擇焊接參數(shù),以獲得良好的對(duì)焊接頭. 6)鋼筋代換 一般應(yīng)避免鋼筋代換,必須進(jìn)行鋼筋代換時(shí)，征得監(jiān)理工程師同意，可按規(guī)范規(guī)定進(jìn)行鋼筋等強(qiáng)度、等面積或變形控制代換。 3、鋼筋安裝 1）準(zhǔn)備工作 鋼筋綁扎安裝前先核對(duì)成品鋼筋的鋼號(hào)、直徑、形狀、尺寸和數(shù)量等,并準(zhǔn)備好鐵絲、綁扎工具及控制砼保護(hù)層的預(yù)制墊塊。 2）鋼筋安裝方法 主要采用現(xiàn)場手工綁扎即散裝法。 3)鋼筋綁扎安裝 分為鋪料、劃線、綁扎、連接及倉位清理五14、個(gè)工序.根據(jù)測量放樣點(diǎn)在模板基礎(chǔ)上劃出鋼筋位置線，籍以進(jìn)行鋼筋綁扎或連接。鋼筋保護(hù)層用同標(biāo)號(hào)的水泥砂漿預(yù)制墊塊控制,墊塊預(yù)埋鐵絲與鋼筋扎緊. 4）鋼筋連接 鋼筋現(xiàn)場連接主要采用手工電弧焊，施焊前，先進(jìn)行鋼筋定位,保證兩鋼筋的軸線在一條直線上。施焊時(shí)，引弧由一端開始，在搭接鋼筋端頭上收弧，弧坑應(yīng)填滿。其焊縫長度不小于搭接長度，搭接長度應(yīng)符合規(guī)范規(guī)定，焊縫高度及寬度也應(yīng)滿足規(guī)范要求. 三、砼原材料的要求 Functions of the regulation in the presence of the cross overlapping, departments, units should pr15、omptly pass gas, timely reporting, never shuffle disputes over trifles, affect the work. Department of municipal and district and the units are to joint task。 Package linked to true packets, not only to the idea， way， also output， money。 During the comprehensive improvement， various organs and insti16、tutions to each half out half day time， the organization of cadresWorkers to joint area to carry out compulsory labor, to help the old people clean up garbage, remediation of environmental remediation, demonstration masses, close relations between cadres and the masses. Area should take the initiati17、ve to assume the task of investigating. The county to apanage management responsibility, within the jurisdiction of the work as soon as possible to organize a dragnet investigation， find out the existing problem of regional location and scale， in accordance with the size of the problem and arrangeme18、nt of the cycle of remediation and the city， the establishment of key problem ledger， discharge schedule, a pin number. The township， streets and villages, the community would like to play the main role, fulfill its responsibility to reveal all the details， launch an indepth, meticulous work, the qu19、ality and quantity of the completion of a comprehensive remediation tasks. 1、砼原材料的要求 1)水泥 水泥擬采用袋裝水泥，其標(biāo)號(hào)采用32.5R。水泥應(yīng)有出廠品質(zhì)檢驗(yàn)報(bào)告單，水泥進(jìn)場后應(yīng)按規(guī)范要求取樣復(fù)檢。 2）外加劑 主要擬摻加木鈣,其質(zhì)量符合規(guī)范要求，摻加時(shí)與水混合攪拌均勻，配成一定濃度的溶液。 3）骨料 碎石、砂擬外購，骨料必須堅(jiān)硬、致密、耐久、無裂隙，其級(jí)配、細(xì)度模數(shù)及力學(xué)性能應(yīng)符合要求，并經(jīng)檢驗(yàn)合格。 4）水 拌制和養(yǎng)護(hù)混凝土均采用自來水 2、砼配合比 砼配合比經(jīng)有資質(zhì)的試驗(yàn)室經(jīng)反復(fù)試驗(yàn)精心選配,選定后報(bào)送監(jiān)20、理工程師批準(zhǔn),由現(xiàn)場質(zhì)檢工程師簽證實(shí)施.工地設(shè)試驗(yàn)室，配備專門試驗(yàn)人員進(jìn)行檢測. 3、拌制 砼系統(tǒng)采取集中布置,設(shè)一個(gè)拌和站拌砼，拌和站配2臺(tái)0.5m3強(qiáng)制式拌和機(jī)拌制，設(shè)置拌和站及自動(dòng)配料。砼拌和時(shí)保證配料準(zhǔn)備準(zhǔn)確，拌和均勻，同時(shí)施工和易性好。 4、砼運(yùn)輸入倉 為減少和避免砼在受料、卸拉過程中骨料的分離，必須改進(jìn)攪拌出料Functions of the regulation in the presence of the cross overlapping, departments， units should promptly pass gas, timely reporting, never21、 shuffle disputes over trifles， affect the work。 Department of municipal and district and the units are to joint task。 Package linked to true packets, not only to the idea, way, also output， money。 During the comprehensive improvement， various organs and institutions to each half out half day time， 22、the organization of cadresWorkers to joint area to carry out compulsory labor, to help the old people clean up garbage， remediation of environmental remediation， demonstration masses, close relations between cadres and the masses。 Area should take the initiative to assume the task of investigating。 23、The county to apanage management responsibility， within the jurisdiction of the work as soon as possible to organize a dragnet investigation， find out the existing problem of regional location and scale, in accordance with the size of the problem and arrangement of the cycle of remediation and the c24、ity， the establishment of key problem ledger, discharge schedule， a pin number。 The township， streets and villages， the community would like to play the main role， fulfill its responsibility to reveal all the details, launch an indepth, meticulous work， the quality and quantity of the completion of 25、a comprehensive remediation tasks。 槽的長度,用8T自卸汽車直接受料，砼卸料高度在70cm以內(nèi),在倉內(nèi)卸料時(shí)，采用汽車邊卸料邊同前緩慢移動(dòng)。 四、攤鋪初平 砼卸到倉內(nèi)后人工進(jìn)行攤鋪，每工作點(diǎn)前臺(tái)全部操作人員15人.砼表面平整在施工技術(shù)人員的指導(dǎo)下，由具有攤鋪經(jīng)驗(yàn)的操作人員完成，攤鋪中要按照測量標(biāo)出的高程控制點(diǎn)水平線，按水平線將砼鋪均勻。處理表面平整，尤其骨料分布要均勻。此后除必要操作人員在規(guī)律在作精細(xì)平整操作外,其他人員均不得在松鋪的砼上走動(dòng)。 五、振搗、找平 把攤鋪好砼先用插入式振動(dòng)器初振一遍，補(bǔ)平低凹部位，鏟除超高部分，然后平板振動(dòng),邊振動(dòng)人工邊補(bǔ)料、棄料26、,使振后表面基本初平，然后選用相應(yīng)板寬的微振動(dòng)梁靠在兩側(cè)模板頂進(jìn)行振動(dòng)，這時(shí)表面泛漿量大，微振動(dòng)梁沿縱向向前振時(shí)一般不允許再補(bǔ)料,但如果在明顯凹部用碾壓人工補(bǔ)平,再振一遍，最后人工用長尺表面找平，并準(zhǔn)備真空吸水。 六、表面處理 砼路面表面處理,包括真空吸水、磨漿、抹光、壓防滑痕等工序，是關(guān)系砼路面表面平整度關(guān)鍵一道。真空吸水量少，漿稀且薄，抹光效果差,壓痕容易出現(xiàn)齒狀，影響處觀和平整。實(shí)踐得知、真空吸水每板塊一般吸35kg左右，磨漿機(jī)一般在吸水后半小時(shí)開始磨漿，抹光一般可跟在磨漿后不能太遲,太遲表面漿硬,壓痕不明、且淺,不符合要求。值得一提是砼面層完畢后，要嚴(yán)格保護(hù)好成層，防止車輛、Funct27、ions of the regulation in the presence of the cross overlapping, departments, units should promptly pass gas, timely reporting, never shuffle disputes over trifles, affect the work. Department of municipal and district and the units are to joint task. Package linked to true packets， not only to the 28、idea， way, also output， money. During the comprehensive improvement， various organs and institutions to each half out half day time, the organization of cadresWorkers to joint area to carry out compulsory labor, to help the old people clean up garbage, remediation of environmental remediation, demon29、stration masses， close relations between cadres and the masses. Area should take the initiative to assume the task of investigating. The county to apanage management responsibility, within the jurisdiction of the work as soon as possible to organize a dragnet investigation, find out the existing pro30、blem of regional location and scale, in accordance with the size of the problem and arrangement of the cycle of remediation and the city, the establishment of key problem ledger， discharge schedule, a pin number。 The township， streets and villages, the community would like to play the main role, ful31、fill its responsibility to reveal all the details, launch an in-depth, meticulous work， the quality and quantity of the completion of a comprehensive remediation tasks. 人員及其他動(dòng)物在表面走動(dòng)，要待一定強(qiáng)度后，才能允許在上面走動(dòng)。 七、伸縮縫 砼切縫一般為縮縫，其切縫時(shí)間一般在砼施工完畢12小時(shí)后，其必須與縱向垂直，縫內(nèi)不得有雜物，用瀝青灌澆,伸縮縫必須全部貫通，傳力桿必須與縫面垂直。伸縮縫要按設(shè)計(jì)要求施工，安好滑動(dòng)傳力桿灌滿32、縫. 八、砼養(yǎng)護(hù) 砼澆筑完畢后，采用鋸木或麻袋蓋面養(yǎng)護(hù)，保護(hù)表面濕潤狀態(tài)，砼一般澆筑完畢后12,18小時(shí)，可開始養(yǎng)護(hù).養(yǎng)護(hù)方法:用灑水車沿線噴養(yǎng)，派專人專車養(yǎng)護(hù)，養(yǎng)護(hù)時(shí)間不少于14天，盡可能養(yǎng)護(hù)20天。 九、砼路面施工裂縫的預(yù)防 砼路面施工裂縫一般由于施工間隔時(shí)間長，接縫斷裂、施工溫差大、搗拌不均、切縫不及時(shí)等因素引起，為保證少出現(xiàn)裂縫，必須注意天氣預(yù)防、避免中午澆筑，有條件對(duì)骨料進(jìn)行冷卻，降低入倉溫度和水化熱溫外，盡可能在夜間進(jìn)行澆筑.對(duì)于工作面施工間隔長,對(duì)交接面要進(jìn)行處理。接縫要盡量留在縮縫處,以免影響外觀。 Functions of the regulation in the pres33、ence of the cross overlapping, departments， units should promptly pass gas, timely reporting， never shuffle disputes over trifles, affect the work. Department of municipal and district and the units are to joint task。 Package linked to true packets， not only to the idea, way, also output， money。 Dur34、ing the comprehensive improvement， various organs and institutions to each half out half day time， the organization of cadresWorkers to joint area to carry out compulsory labor, to help the old people clean up garbage, remediation of environmental remediation， demonstration masses, close relations b35、etween cadres and the masses. Area should take the initiative to assume the task of investigating。 The county to apanage management responsibility， within the jurisdiction of the work as soon as possible to organize a dragnet investigation, find out the existing problem of regional location and scal36、e, in accordance with the size of the problem and arrangement of the cycle of remediation and the city， the establishment of key problem ledger, discharge schedule， a pin number. The township, streets and villages， the community would like to play the main role, fulfill its responsibility to reveal all the details， launch an in-depth， meticulous work, the quality and quantity of the completion of a comprehensive remediation tasks.