蒸壓(ya)加氣混(hun)凝土砌(qi)塊牆(qiang)體(ti)有下列優勢(shi): 農村基(ji)層牆麵(mian)與隔熱(re)層(ceng)合為一體,在風(feng)載荷功效下不(bu)容(rong)易形變(bian)、掉(diao)下來; 仿火(huo)特(te)性符(fu)合要求規(gui)定; 使用(yong)性能能滿(man)-足(zu)規定; 可工藝性能-強; 工(gong)程施工工藝流(liu)程較(jiao)簡變; 調(diao)整室(shi)內(nei)空氣等(deng)。其關鍵缺陷是(shi)易造(zao)成縫隙。文(wen)中詳細(xi)介紹(shao)仿(fang)治(zhi)蒸壓加氣混凝土(tu)砌塊(kuai)牆麵裂縫的某些落實措施。n1 加設(she)構造柱n蒸(zheng)壓加氣混凝土砌塊牆體全麵性差(cha), 非(fei)常容易造成牆麵裂縫(feng), 改良蒸壓加氣混凝土砌塊牆體全麵性(xing)的(de)對策是在(zai)抄長(zhang)牆麵的正中(zhong)間(jian)位置、牆麵的拐角處和相接處加設(she)構造柱。蒸壓加氣混凝土砌塊圍護(hu)結(jie)構牆或分隔斷牆中的構(gou)造柱不畢(bi)壘砌大馬(ma)牙槎, 填充牆牆與構造柱中間的拉接建築鋼筋(jin)選用3.5mm網紗(sha)規格20mm的電(dian)焊焊(han)接鋼筋網, 也可(ke)選用薄厚(hou)2mm的熱鍍鋅鋼板。在伸進構造柱內的一邊(bian)製成(cheng)燕(yan)尾形, 以利於混泥土振搗(dao)力(li)度(du)密實度。砌入填充牆一邊的厚鋼(gang)板應(ying)鑽2個孔, 用水泥鋼釘(ding)釘進蒸壓加氣混凝土砌塊 。鋼筋網(wang)或厚鋼板拉(la)結件應沿牆高每過(guo)500mm或兩皮加氣塊間設定。除此之外, 還可加設混凝土結構水(shui)準係(xi)梁。n2 預(yu)埋縫解(jie)決n填充(chong)牆工程項目(mu)基本作法(fa)中, 砌體砌至貼近梁、基礎梁時, 需留一(yi)些間隙, 待(dai)砌體砌牆完並(bing)應間距7d後, 再將其補砌擠緊(jin), 補(bu)砌通常(chang)選(xuan)用斜(xie)磚。選用此(ci)方式(shi) , 蒸壓加氣混凝土砌塊填充牆與混凝土結構梁( 板) 底(di)邊將會會(hui)造成縫隙。蒸壓加氣混凝土砌塊砌體要預埋間隙, 可操縱(zong)在10mm～25mm, 間隙處通常可選用澎漲混合砂漿( 摻(can)入混凝土淨重12%的UEA膨脹劑) 嵌填(tian),間隙抄(chao)過25mm能用澎漲細混泥土嵌填(tian)。嵌填(tian)牆體時,可在裏(li)側先(xian)嵌(qian)填(tian), 待先嵌填(tian)的澎漲混合砂漿或澎漲豆石混凝土終凝後, 再嵌填(tian)兩側, 便於塞實。嵌填(tian)後的澎漲混合砂漿或澎漲豆石混凝土應補水保養, 也(ye)可選用軟性原材料嵌填(tian), 如玻(bo)璃(li)棉板、礦(kuang)棉(mian)和PU發(fa)泡膠( 條) ,再(zai)在表層打延展性結構膠條(tiao)維護。nn"},"apool":{"numToAttrib":{"0":["author","p.144115213750303091"],"1":["font-family",""Microsoft YaHei",微軟雅黑,"PingFang SC","Noto Sans CJK SC",sans-serif,"SF Pro",Roboto,"Droid Sans",Helvetica,Tahoma,Arial,"Hiragino Sans GB","Heiti SC""],"2":["font-size","12pt"],"3":["bold","false"],"4":["italic","false"],"5":["color","black"],"6":["background-color","transparent"],"7":["letter-spacing","0pt"],"8":["snapToGrid","1"]},"nextNum":9},"keyFramesInfo":{"frames":[],"src":"copy"}}","storyAtexts":[],"srcGlobalPadId":"300000000$TFzHCPAYRkup"}" style="font-family: -webkit-standard; white-space: normal;">