舒布洛克砼砌体施工方法

舒布洛克砼砌体施工方法ShanghaiSureBlock-BesserBuildingMaterialsCompany.;LtdXiaShaTown,NanHuiCounty,Shanghai,China.Tel.(021)58140808,Fax.(021)58143535PAGE6ofNUMPAGES6DATE\@"MM/dd/yy"10/14/07ConstructionMethodStatementforConcreteMasonryWall.砼砌体施工方法SitePreparation施工准备Allworkingareasapproximately4mwide,adjacenttothewallshouldbelevelandclean.工作面积需约4m宽，与墙体相邻的地方需干净和平整。AllfacingCMU`sshouldbeselectedatrandomfromseveralpallets(CMUCubes)andre-stackedneatlyinsmallplieswithineasyreachoftheMasonconstructingthewall.所有劈裂砌块砌筑时，必须从几包砌块中随机选取，砌块需整齐地就近堆放。Workingareasshouldbekeptcleansoasnottodamageorcontaminateblocks,thisalsomakesforasafeworkingarea.工作区需保持清洁并避免损坏砌块。SettingoutforCMUwall开始施工Fromconstructiondrawingsmarkontothefoundationusingmasonspencilorcrayonandtapemeasure,allwindow,dooropeningsandcontroljoints.Measurebetweencornersanddooropeningsorcontroljoints,calculatethenumberofCMU`s(390mm+10mm=400mm)adjustmortarjointsslightlytofitCMU`stothenearest½block.MarkonthefoundationCMUandmortarjoint.Wheretherearemasonrycolumnsbetween,andmasonryabovewindows,whilesettingoutmakeallowancetoalignverticalmortarjointsinmasonrybelowandabovewindows.根据图纸将所有门、窗及控制缝的位置都用铅笔在基础梁上做好记号，计算墙角到门、窗洞口间的砌块模数(400mm)，通过灰缝宽度调整，尽可能将模数调至砌块模数的1/2，并在基础上标出砂浆灰缝的位置。窗间墙的上方墙体和下方墙体的灰缝需对齐。Checkpositionofallverticalrebardowels,toensurehollowswithinblocksalignwithsteeldowels.核查预埋插筋的位置，确定插筋间距。Mortar砂浆砂浆采用地产砂与海螺水泥（经试验做出的配合比）搅拌而成。Mortarshouldbemixedwithcleanwater.需采用自来水搅拌砂浆。Mixershouldbecleanpriortomixingmortar.搅拌前需清洁搅拌机。Toobtaingoodworkabilityandotherdesirablepropertiesofplasticcolorconsistentmasonrymortar,theingredientsmustbethoroughlymixed.Afterallmaterialsarebatchedintomixer,theyshouldbemixedfrom3to5minutes.Lessmixingtimemayresultinnonuniformity,poorworkability,lowwaterretention,andlessthanoptimumaircontent.Longermixingtimesmayeffectstrengthofmortar.为使砂浆使用性能良好，砂浆成份需被彻底搅拌。材料倒入搅拌机后，需搅拌3~5分钟。如搅拌时间过短，则砂浆会出现不均匀，工作能力差，水份保持力不足和空气含有率不足的现象；搅拌时间过长则会影响砂浆的强度。Freshmortarshouldbepreparedattherateitisusedsothatitsworkabilitywillremainthesamethroughouttheday.Mortarthathasbeenmixedbutnotusedwithin20minutestendstodryoutandstiffen.Ifitisnecessarytorestoreworkability,mortarmayberetemperedbyaddingwaterandre-mixing.Colormortarsshouldnotbetempered,becauseadditionalwaterwillcausecolortolighten.Mortarshouldbediscardedafter2½hoursfrommixing.工地上需常备新鲜搅拌的砂浆以保证砂浆的工作性一致。砂浆搅拌后如不及时使用，20分钟后开始硬化和干化，所以有必要再加些水后重新搅拌。有颜色的砂浆不能重新加水搅拌，因为会使颜色变浅。砂浆搅拌后2个半小时内，如不用则弃用。KeepMortaronadampboardreadyforMason’suse.Mortarplacedinbucketscausesrapidsettlementofsandandwater,whichresultsinlossofmortarproperties.砂浆应被倒在平湿板上使用。在桶中使用砂浆则会使砂浆容易积水和沉淀，从而丧失了砂浆的某些性能。ConcreteMasonryWallConstruction砼砌体施工Startconstructionofwallbyconstructingcornersandendofwallfirst.Buildupsectionsofthewall5mapart,startingatacornerifpossibletoensureaccuracy.从墙体的一角及末端开始砌筑。Useexperiencedskilledmasonstoconstructcornersandendsofwalls.挑选熟练技工开始砌墙角及墙的末端。Checkfrequentlyforcourseheight,squarenessandlevel.经常检查墙角的水平、高度、对角。Oncecornersandendofwallsareconstructed,fillinbetweenwithCMU`scoursebycourse.砌完墙角和墙末端，再砌墙角与末端的中间部分。UseastringlinebetweencornersandendofwalltokeepcoursesofCMU`slevel.在墙角与另一端需拉线以保证墙体水平。Usestorypoletocheckcourseheight.竖皮数杆以控制每道砌块的高度。FigureSEQFigure\*ARABIC1StorypoleAcontroljointmustpermitreadymovementofthewallinalongitudinaldirectionyetbesealedagainstvision,soundandtheweather.一个控制缝必须允许墙体沿纵向有移动，并且需隔声、防风的密封处理。Thereareanumberoftypesofcontroljointsforbuildingconcretemasonrywalls,themostcommonaretheMichiganandpremoldedgaskettype.砼砌体有很多形式的控制缝，最普通的是密歇根式和预制模型填缝式。Checkdrawingforlocationofcontroljoint,andsetoutlocationwithinwall.查看图纸，确定伸缩缝的位置。Thecontroljointshouldextendthefullheightofthewall.控制缝贯通整个墙体。Controljointmustnotbebridgedbyjointreinforcement.控制缝不能被水平增强筋相连通。Reinforcement(Rebar/Bedjointreinforcement)钢筋Whereverticalreinforcedcoresarerequired竖向钢筋需RebarshouldbepositionedwithinthecenteroftheCMUhollow.放在砌块孔的中央，孔中放一根Ф12的钢筋；2、芯柱砼采用C20砼3、Concretemasonryunitsmustbelaidupsothattheyarealignedtoformanunobstructed,continuousseriesofverticalspaceswithinthewall.砌块砌筑时，应保证芯柱孔上下对齐，畅通无阻。Allheadandbedjointsmustbefilledsolidlywithmortarforthethicknessofthefaceshell.Ifthewallwillbepartiallygrouted,thefaceshells,headjoints,andthosewebsadjacenttothecorescontainingreinforcementmustbefilledwithmortartorestrictthegrout.所有竖缝和水平缝的砂浆应饱满地涂抹在砌块的翼缘和肋上。5、芯柱间距为2米。WhereBedjointreinforcementisrequired横向拉结网片需Onlyusegalvanizedbedjointreinforcement.只允许用镀锌网片。Bedjointreinforcementshouldbeplacedintothemortaratminimumof20mmfromtheexteriorfaceofthewallandaminimumof12mmfromtheinteriorfaceofthewall.网片宽度需距外墙 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 面不小于20mm，内墙表面不小于12mm。Bedjointreinforcementshallbeoverlappedasspecifiedintheconstructiondrawings.水平网片的搭接长度按图纸 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 。Careshouldbetakennottochiporscratchgalvanizedcoating,wheninstallingbedjointreinforcementintowall.放置网片时必须小心，不要折断或破损网片。5、拉结钢筋网片每四皮砌块放一层GroutConcrete芯柱砂浆Inreinforcedconcretemasonrywallconstruction,groutoftenisplacedonlyinwallspacescontainingsteelreinforcement.Thegroutbondsthemasonryunitsandsteelsothattheyacttogethertoresistimposedloads.在钢筋砼砌体墙中，芯柱砂浆只被灌在有插筋的地方，芯柱砂浆将钢筋和砌体连结在一起共同抵御荷载。Aliftisthelayerofgroutplacedinasinglecontinuousoperation.Groutliftheightsarelimitedto1.5or1.8m.Apouristheentireheightofgroutplacedinonedayandmaybecomposedofanumberofsuccessivelyplacedgroutlifts.一次灌浆高度不应超过1.5~1.8m。整个浇灌高度将在一天内一次或分几次浇灌完成。Low-liftgroutingrequiresnospecialconcreteblockshapesorequipment.Thewallisbuilttoscaffoldheight,ortoabondbeamcourse,toamaximumof1.8m,andcellstobegroutedareclearedofmortarandotherdebris.Steelreinforcingrodsandotherembeddeditemsarethenplacedinthedesignatedlocationsandthecellsaregrouted.浇灌高度不高时，不需要特殊形状的砌块或设备。墙体砌筑到脚手高度、或圈梁高度、或不高于1.8m，浇灌时孔内应无砂浆或其它垃圾，钢筋随后插入到设计所指定位置。Forallliftsexceptthefinal,thelevelofthegroutbeingplacedisstoppedabout38mmbelowthetopbedjointtoforma“key”forsuccessivelifts在最后一次浇灌前的其它各次浇灌，浇灌面应距砌块顶部预留38mm间隙，以便在下次浇灌时使芯柱之间结合良好。Forintermediatelifts,steelreinforcementshouldprojectabovethetopcourseforsufficientheighttoprovidefortheminimumrequiredlapsplice.在浇灌过程中，钢筋必须伸出砌体足够长，以保证其最小搭接长度。Careshouldbetakentominimizegroutsplatteronreinforcementandonmasonryunitsurfacesnotbeingimmediatelyencasedinthegroutfill.浇灌时必须小心，不要让芯柱砂浆溅到上部钢筋及砌体表面。Thegroutcanbeplacedwithbucketsequippedwithspouts,suchascoalscuttles.可以用带嘴桶或其它袋状物来浇灌。Spacescontaininggroutmustberoddedorvibratedduringplacementtoensurecompletefillingofthegroutspace.浇灌时必须用振捣棒或钢筋适当振捣芯柱。其他：披水板滴水孔可以不设；门窗洞两侧单孔内灌C20细石砼；墙体与砼柱交界处采用两根Ф6拉结筋，L=1100mm，每隔二皮放置一层；墙顶与楼板底或梁底改用斜皮砖或实心砖一道，用发泡剂填实；每隔15米设一道竖向控制缝用发泡剂填实，遇圈梁则不断；门窗洞口两侧墙体尺寸为400。圈梁采用定型QL砌体，当墙厚为100mm，120mm，200mm时配筋为一根通长Ф12钢筋，当墙厚为240mm,300mm,400mm时配筋为2根，通长Ф14的钢筋，并用C20细石砼填实；灰缝严格控制在10mm±2mm