■牆壁出現裂紋的幾種原因： 
　　1．牆體保溫板與板之間的縫隙出現的板縫裂紋； 

　　2．牆壁開槽，線槽補灰出現的收縮裂紋； 

　　3．抹灰刮膩子不均勻出現的應力裂紋。 

　　■解決牆壁裂紋的幾種方法： 

　　1．保溫板裂紋的處理。用油灰刀把裂紋切開，盡量深一些
，填入石膏。注意一定要填實，填均勻。然後用繃帶
、doubaobuhuobaidequeliangbubachuxianliewendedifangtieshang，ganzaohouzaiguanizihuozuoqitagongyidechuli。ruguoliewenbijiaoyanzhong，yekeyiyongniupizhihuobaozhibufeng
，xiaoguokenenggenghaoyixie。 

　　2．線槽補灰以後出現裂紋的原因是水泥砂漿的幹燥速度、shousuolvyunizifenbutong，zaiqiangtibiaomiandeniziyijinggantouyihou，limiandeshuinishajianghaimeiyougantou，yincichuxianliewen。suoyibuxiancaoyongshigaofendexiaoguoyaohaoyixie。 

　　3．ruguoqiangmianniziyiciguadetaihou，huozhezhenggeqiangmiandehouduguoyuxuanshu，yehuichuxianliewen。yanzhongdehaihuituoluo。ruguoyoubiyao
，jiuyinggaiduoguajibian，meibianboyixie，jiangeshijianyeyinggaichangyixie。danyaozhuyiniziguadebianshuduole
，yerongyituoluo。