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對于(yu)目前(qian)的(de)施工(gong)技術(shu)工(gong)藝(yi)來說(shuo),建(jian)筑物的(de)外墻(qiang)通常不會(hui)出現(xian)大面積的(de)滲(shen)(shen)漏(lou)現(xian)象,然(ran)(ran)而,這部分極易被(bei)人疏忽,外墻(qiang)的(de)滲(shen)(shen)水會(hui)對建(jian)筑的(de)正常使用造(zao)成(cheng)更嚴(yan)重的(de)影響。建(jian)筑外墻(qiang)滲(shen)(shen)水現(xian)象的(de)起因(yin)多(duo)樣(yang)(yang),除了人為(wei)原因(yin),一般(ban)多(duo)因(yin)為(wei)建(jian)筑結構的(de)變形(xing),接縫不嚴(yan)密(mi),外墻(qiang)中(zhong)的(de)管道季節(jie)性的(de)破裂等(deng)等(deng),由于(yu)原因(yin)多(duo)樣(yang)(yang),并且伴有(you)連鎖反(fan)應(ying),要(yao)(yao)求施工(gong)與維(wei)(wei)修人員在對外墻(qiang)滲(shen)(shen)水事故(gu)(gu)的(de)治理中(zhong)應(ying)根據實地實際(ji),查明原因(yin),找出根源,細致分析(xi)采取(qu)具有(you)針對性的(de)、能夠治根的(de)辦(ban)法進行維(wei)(wei)修。發(fa)現(xian)施工(gong)材料(liao)對于(yu)外墻(qiang)滲(shen)(shen)水漏(lou)水仍然(ran)(ran)是事故(gu)(gu)的(de)主(zhu)要(yao)(yao)原因(yin),建(jian)筑材料(liao)主(zhu)要(yao)(yao)采用普通混凝(ning)土(tu),雖然(ran)(ran)不易產生滲(shen)(shen)水事故(gu)(gu),但這樣(yang)(yang)材質(zhi)發(fa)生的(de)外墻(qiang)滲(shen)(shen)漏(lou)事故(gu)(gu)的(de)出現(xian)比率高達(da)百分之(zhi)九十以上,如(ru)何在建(jian)筑材料(liao)的(de)升(sheng)級與技術(shu)革新(xin)上,解(jie)決滲(shen)(shen)水的(de)頑(wan)疾,需要(yao)(yao)引起土(tu)建(jian)工(gong)作(zuo)者高度關注。
對于(yu)衛生間的(de)(de)防(fang)(fang)(fang)水(shui)(shui)(shui)防(fang)(fang)(fang)滲(shen)的(de)(de)具體工(gong)作。首先,衛生間是建筑物中(zhong)(zhong)用(yong)水(shui)(shui)(shui)密集區,施(shi)(shi)(shi)工(gong)中(zhong)(zhong)應選用(yong)高(gao)質量(liang)的(de)(de)防(fang)(fang)(fang)水(shui)(shui)(shui)材(cai)料(liao)與(yu)設施(shi)(shi)(shi)進(jin)行(xing)(xing)(xing)施(shi)(shi)(shi)工(gong),衛生間的(de)(de)滲(shen)水(shui)(shui)(shui)易發區應使用(yong)混凝土(tu)進(jin)行(xing)(xing)(xing)澆筑,排(pai)給水(shui)(shui)(shui)管道安設完成后(hou)必須堅持標準的(de)(de)試(shi)壓(ya)檢測,還要做好排(pai)水(shui)(shui)(shui)漕路(lu)。其次(ci),在(zai)地(di)下(xia)(xia)室的(de)(de)防(fang)(fang)(fang)水(shui)(shui)(shui)防(fang)(fang)(fang)漏(lou)施(shi)(shi)(shi)工(gong)中(zhong)(zhong)則應重點(dian)加強對施(shi)(shi)(shi)工(gong)變形縫的(de)(de)監控(kong),在(zai)進(jin)行(xing)(xing)(xing)止水(shui)(shui)(shui)帶施(shi)(shi)(shi)工(gong)前(qian)必須對其嚴密性檢查,同時施(shi)(shi)(shi)工(gong)方還要對所用(yong)混凝土(tu)的(de)(de)配比精度進(jin)行(xing)(xing)(xing)把關,以(yi)免(mian)出現(xian)不(bu)可修復的(de)(de)局(ju)面。對于(yu)衛生間的(de)(de)滲(shen)水(shui)(shui)(shui)防(fang)(fang)(fang)治,地(di)下(xia)(xia)室與(yu)其有很多相似(si)的(de)(de)地(di)方,可以(yi)參(can)照(zhao)衛生間防(fang)(fang)(fang)水(shui)(shui)(shui)防(fang)(fang)(fang)漏(lou)措施(shi)(shi)(shi)進(jin)行(xing)(xing)(xing)完善。
【補漏(lou)(lou)措(cuo)施】(1)將滲(shen)水(shui)部位清理(li)(li)干凈(jing),用(yong)(yong)(yong)(yong)水(shui)泥基(ji)防(fang)水(shui)涂(tu)(tu)料(liao)作(zuo)堵(du)滲(shen)處(chu)(chu)理(li)(li)。(2)將滲(shen)水(shui)部位清理(li)(li)干凈(jing)后,提示用(yong)(yong)(yong)(yong)聚氨(an)酯防(fang)水(shui)涂(tu)(tu)料(liao)等配(pei)合(he)纖(xian)維(wei)增強材(cai)(cai)料(liao)作(zuo)堵(du)滲(shen)處(chu)(chu)理(li)(li)。(3)在(zai)漏(lou)(lou)水(shui)部位嵌(qian)填(tian),粘(zhan)貼或注(zhu)入(ru)柔性(xing)或彈性(xing)防(fang)水(shui)材(cai)(cai)料(liao);(4)在(zai)表面用(yong)(yong)(yong)(yong)彈性(xing)防(fang)水(shui)涂(tu)(tu)料(liao)和纖(xian)維(wei)材(cai)(cai)料(liao)做(zuo)增強防(fang)水(shui)層(ceng)。(5)清理(li)(li)管外側空間的(de)嵌(qian)填(tian)密封材(cai)(cai)料(liao)或注(zhu)漿,嚴密堵(du)塞(sai);(6)管與(yu)地(di)下室壁面連接根部用(yong)(yong)(yong)(yong)索(suo)涂(tu)(tu)高分子防(fang)水(shui)涂(tu)(tu)料(liao)配(pei)合(he)纖(xian)維(wei)材(cai)(cai)料(liao)做(zuo)增強防(fang)水(shui)層(ceng)。介紹除可采用(yong)(yong)(yong)(yong)壁內和壁后注(zhu)漿,防(fang)水(shui)混凝土貼壁襯砌、水(shui)泥砂漿,掛網水(shui)泥砂漿抹面等方法外,也可采用(yong)(yong)(yong)(yong)防(fang)水(shui)涂(tu)(tu)料(liao),先引(yin)流排水(shui),然后填(tian)縫堵(du)洞,杜絕滲(shen)漏(lou)(lou)。
(1)外(wai)(wai)墻清(qing)(qing)洗第一天開(kai)工(gong)(gong)(gong)前,現場(chang)主管需要(yao)帶(dai)領安全(quan)(quan)員檢查(cha)并(bing)做好落實安全(quan)(quan)措施;(2)待確認安全(quan)(quan)措施無誤,現場(chang)主管可指揮作業(ye)人(ren)員進入工(gong)(gong)(gong)作區域;(3)外(wai)(wai)墻清(qing)(qing)洗施工(gong)(gong)(gong)中隨時保持高度(du)警惕,發現隱(yin)患,應立即(ji)采取果斷措施及(ji)時糾正;(4)檢查(cha)安全(quan)(quan)員工(gong)(gong)(gong)作執行(xing)情況(kuang),勿(wu)使(shi)松懈;(5)每天協同甲(jia)方(fang)負責人(ren)員對工(gong)(gong)(gong)作進行(xing)驗收(shou)(shou),應對出(chu)現的(de)質量(liang)問題及(ji)時安排返工(gong)(gong)(gong);(6)每天工(gong)(gong)(gong)作結束(shu)檢查(cha)、驗收(shou)(shou)無誤后,向公司(si)匯報當天工(gong)(gong)(gong)作情況(kuang)。主管雖然(ran)不用上陣工(gong)(gong)(gong)作,但是在底下做好管理工(gong)(gong)(gong)作也相當重要(yao),更利(li)于提高工(gong)(gong)(gong)作的(de)效率(lv),降低危險性。
屋面防水廠家DH-814Ⅱ型聚氨酯幫助堵漏膠是遇水即反應,由于水參與了反應,漿液不會被水稀釋沖走,這是其他灌漿材料所不具備的優點;漿液在壓力作用下,灌入混凝 土裂縫,同時向裂縫周圍蔓延,當遇水時又發生反應,發泡膨脹,形成二次蔓延,繼續滲入混凝土縫隙,形成網狀結構,成為密度小、含水的彈性體,有良好的 適應變形能力,止水性好。灌漿孔的設計和布孔 灌漿孔的布孔有騎縫和斜孔兩種形式,貴港市屋面防水建議根據實際(ji)情況和(he)(he)需(xu)要加以選擇,必要時兩者并(bing)(bing)用。(1) 灌漿(jiang)孔(kong)的設(she)計:灌漿(jiang)孔(kong)的位置,應使孔(kong)和(he)(he)漏水(shui)裂縫孔(kong)隙相交(jiao),并(bing)(bing)選在漏水(shui)量深處。(2) 布孔(kong)原則(ze):注漿(jiang)孔(kong)眼的位置和(he)(he)數量,需(xu)根據不同漏水(shui)情況進行合理(li)安排,以導出漏水(shui)為目(mu)的,在集(ji)中漏水(shui)處布孔(kong),裂縫大,水(shui)流(liu)量大,則(ze)孔(kong)距(ju)大,縫小則(ze)孔(kong)距(ju)小。