后澆帶工程施工方案

1、1目錄1、總則、總則......................................................................11.11.1適用范圍適用范圍.............................................................................................................................

2、11.21.2編制參考標(biāo)準(zhǔn)及規(guī)范編制參考標(biāo)準(zhǔn)及規(guī)范.........................................................................................................12術(shù)語(yǔ)術(shù)語(yǔ)........................................................................12.12.1后澆帶：后

3、澆帶：.............................................................................................................................12.22.2補(bǔ)償收縮砼：補(bǔ)償收縮砼：.........................................................................

4、............................................13、工程概況、工程概況..................................................................14、基本規(guī)定、基本規(guī)定..................................................................15、施工準(zhǔn)備、施工準(zhǔn)備........

5、..........................................................25.15.1技術(shù)準(zhǔn)備技術(shù)準(zhǔn)備.............................................................................................................................25.25.2材料要求材料要求.......

6、......................................................................................................................25.35.3主要機(jī)具主要機(jī)具.......................................................................................

7、......................................25.45.4作業(yè)條件作業(yè)條件.............................................................................................................................26、質(zhì)量控制要點(diǎn)、質(zhì)量控制要點(diǎn)..........................

8、....................................26.16.1材料的關(guān)鍵要求材料的關(guān)鍵要求.................................................................................................................22.22.2技術(shù)關(guān)鍵要求技術(shù)關(guān)鍵要求...............................

9、......................................................................................26.36.3質(zhì)量關(guān)鍵要求質(zhì)量關(guān)鍵要求...................................................................................................................

10、..37、施工工藝、施工工藝..................................................................37.17.1施工工藝流程施工工藝流程....................................................................................................................37.27

11、.2后澆帶的留設(shè)后澆帶的留設(shè).....................................................................................................................37.37.3后澆帶的接口型式后澆帶的接口型式..................................................................

12、...........................................37.47.4后澆帶的模板安裝后澆帶的模板安裝.............................................................................................................47.57.5、后澆帶砼澆筑、后澆帶砼澆筑........................

13、..........................................................................................48、質(zhì)量標(biāo)準(zhǔn)、質(zhì)量標(biāo)準(zhǔn)..................................................................48.18.1主控項(xiàng)目主控項(xiàng)目.....................................

14、........................................................................................48.28.2一般項(xiàng)目一般項(xiàng)目.....................................................................................................................

15、........49、成品保護(hù)、成品保護(hù)..................................................................51010、質(zhì)量記錄、質(zhì)量記錄.................................................................524.4后澆帶砼澆筑應(yīng)留置砼檢驗(yàn)試塊，后澆帶的強(qiáng)度等級(jí)應(yīng)符合設(shè)計(jì)要求。4.5后澆帶處結(jié)構(gòu)主筋不宜在縫中斷開(kāi)

16、，若必須斷開(kāi)，則主筋搭接長(zhǎng)度應(yīng)大于45倍主筋直徑，接頭應(yīng)按規(guī)范要求錯(cuò)開(kāi)，并應(yīng)按設(shè)計(jì)要求設(shè)附加鋼筋。4.6所使用的砼應(yīng)有配合比報(bào)告單。4.7應(yīng)按設(shè)計(jì)要求的砼強(qiáng)度等級(jí)或采用比后澆帶兩側(cè)砼提高一個(gè)等級(jí)的補(bǔ)償收縮砼。在滿(mǎn)足強(qiáng)度要求及工藝要求的情況下，其塌落度宜盡可能小一些。4.8模板應(yīng)嚴(yán)密、穩(wěn)固、砼施工時(shí)不得漏漿與變形。5、施工準(zhǔn)備、施工準(zhǔn)備5.15.1技術(shù)準(zhǔn)備技術(shù)準(zhǔn)備a、后澆帶施工前應(yīng)對(duì)材料、施工時(shí)間、現(xiàn)場(chǎng)狀況進(jìn)行檢查核對(duì)，以確定對(duì)設(shè)計(jì)與規(guī)范

17、的符合性，預(yù)測(cè)施工后對(duì)功能的有效性，并做好核對(duì)記錄。b、確定施工方案，本方案作為整體的施工方案，各分區(qū)應(yīng)針對(duì)后澆帶不同的部位，不同的功能要求，不同的現(xiàn)場(chǎng)情況，應(yīng)各自編制滿(mǎn)足設(shè)計(jì)規(guī)范和工藝要求的施工技術(shù)措施。c、對(duì)施工操作人員進(jìn)行書(shū)面技術(shù)交底，其主要內(nèi)容為：施工前、施工中、施工后應(yīng)注意的事項(xiàng)和操作要求、細(xì)部構(gòu)造及技術(shù)質(zhì)量要求。d、應(yīng)熟悉設(shè)計(jì)圖紙、本施工方案標(biāo)準(zhǔn)及相關(guān)技術(shù)規(guī)程，對(duì)后澆帶的做法、位置、配筋進(jìn)行了解，以確定后澆帶上述內(nèi)容的合理性

18、，并確定是否提出修改建議。5.25.2材料要求材料要求a、后澆帶砼所用碎石應(yīng)根據(jù)所澆后澆帶的鋼筋密度確定，一般為5—30㎜，含泥量不得大于1.0%泥塊含量不得大于0.5%。b、后澆帶的砂子應(yīng)采用中砂，且需采用河砂，含泥量不得大于3.0%，泥塊含量不得大于1.0%，且檢驗(yàn)結(jié)果應(yīng)符合《JGJ52—92標(biāo)準(zhǔn)》。c、碎石應(yīng)滿(mǎn)足試配強(qiáng)度要求且檢驗(yàn)結(jié)果應(yīng)符合《JGJ53—92標(biāo)準(zhǔn)》。d、粉煤灰應(yīng)用II級(jí)以上。e、外加劑必須使用合格一等品。f、水泥應(yīng)