墙体裂缝控制方案和施工措施

清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheorysystem,notfromtheobjectivereality,notwiththeparty'sinterestsabovealltheprinciplestodealwithpersonalproblems.Inthespecificworksafetysupervisionintheexecutionisnotstrong,intheimplementationofthedecisiontodeploythediscount,makechoices,engageinwork,theimplementationoftheagreement,uncomfortableisnotperformed,openordisguisedtoresist,thelackofsubjectconsciousnessofthepartyorganization,thelackofresistinsocietyallkindsofbadhabitsandunwholesometendenciesofcourageGasandcourage.Suchastheliabilityinsuranceofsafeproductionwork,individualleadersthathavesomeonearrested,andnofunding,notintheglobalchessperspectivetothecountrysidetocarryoutdailyinspection,foundnoneofmybusinessacceptanceoftheresumptionofproductioninanarmchair,withapen,indifferent.Correctivemeasures:(LEDLeadership:LuoMingjun,rectificationtime:beforeSeptember25th,insistforalongtime)1,tostrengthenthesenseofresponsibility,worktosolvethelackofdecentoccupationexplainaway,conductproblems.Toestablishtheoverallconcept,eliminatedepartmentalism.Strictassessmentandaccountability,tosolvethespiritualslack,nianqingpazhong,statusquo,Toestablishandperfectthemuddlealongandotherissues.Bureaustaffconductworkregulations,standardizethebehaviorofpersonnel.2,strengthentheresponsibilitysystem.Oneisthein-depthstudyandimplementtheHunanprovincialPartyandgovernmentleadingcadresInterimProvisionsontheworksafetyofapairof(HunanOfficeissued2013No.防止墙体裂缝施工措施砌体工程裂缝的成因是多种多样的，有沉降、温度、收缩、荷载、施工等因素引起的裂缝。其中常见的是温度和收缩裂缝，其表现形式主要有：1、墙体竖向裂缝。这种裂缝常出现在窗台上、窗洞的两个下角处，有的出现在墙的顶部上宽下窄。多数窗台缝出现在底层，二层较少。填充墙墙中和柱交接处也可能出现此类裂缝2、墙上的斜裂缝。在窗口转角、窗间墙、窗台墙、外墙及内墙上都可能产生此类裂缝。常出现在纵向墙上两端部、女儿墙端部转角处及顶层内墙上。3、墙上水平缝。常出现在女儿墙根部、顶层窗口处及填充墙顶部。此类裂缝一般沿灰缝错开，而斜裂缝既可沿灰缝，也可横穿砌块和砖块造成砌体墙体出现温度和收缩裂缝的原因很多主要有：1、房屋保温措施不到位。2、房屋长度超长，累计变形大3、墙体抗拉、剪强度和变形能力较差，特别是顶层4、水泥类砌块龄期较短，后期收缩大。5、砌筑砂浆水灰比较大，施工进度快，造成灰缝收缩较大6、在墙上任意开凿管槽，且随意修补7、填充墙构造措施不到位。防治方案：材料方面1、采用中砂严禁其含泥量过大而使水泥砂浆强度降低，严格控制水泥砂浆配合比，保证水泥砂浆强度和耐久性。2、为了有效控制砌体收缩裂缝对砌筑时的砌块龄期必须严格控制，龄期宜大于45天，不应小于28天，因龄期越长，其体积越趋于稳定。施工方面1、填充墙砌至接近梁、板底时，应留一定缝隙，待填充墙砌筑完毕并应至少间隔15天后，再将其补砌挤紧。补砌时，对双侧竖缝用高强度等级的水泥砂浆嵌填密实。2、框架间填充墙拉结筋应满足砌块模数要求，不应折弯压入砖缝。3、填充墙采用加气砼砌块等材料时。框架柱与墙的交接处宜用15mm*15mm的木条预先留，在加贴网片前浇水湿润，再用1：3水泥砂浆嵌实。4、通长现浇钢筋砼板应一次浇筑完成。5、砌体结构砌筑完成后宜60天后再抹灰，并不应少于30d6、每天砌筑高度宜控制在1.8m以下，并应采取严格的防风、防雨措施。每层墙高的中部增设高度为120mm与墙体同宽的混凝土腰梁。7、严禁在墙体上交叉埋设和开凿水平槽；竖向槽必须在砂浆强度达到设计要求后，用机械开凿，且在粉刷前，加贴钢丝网片等抗裂材料。8、宽度大于300mm的预留洞口应设钢筋砼过梁。并且伸入每边墙体的长度不应小于250mm。防止钢筋混凝土现浇楼板裂缝施工措施混凝土的用水量是影响现浇混凝土楼板裂缝最主要，也是最关键的因素。混凝土的清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheory