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我們(men)都知道(dao)地(di)下(xia)室(shi)(shi)防(fang)水的(de)(de)設(she)計(ji)對建(jian)筑物的(de)(de)影響(xiang)非常大,設(she)計(ji)時要綜(zong)合(he)多方面(mian)的(de)(de)因素,采(cai)用剛柔相接(jie),因地(di)制宜,綜(zong)合(he)治理,防(fang)、排、堵相結合(he)的(de)(de)原則。根(gen)據現(xian)場的(de)(de)走訪和多年的(de)(de)防(fang)水施(shi)工經驗(yan)來(lai)給大家介(jie)紹(shao)一下(xia):a.地(di)下(xia)室(shi)(shi)結構室(shi)(shi)外頂板(ban)(ban)(ban)宜優先采(cai)用結構起坡。b.地(di)下(xia)室(shi)(shi)頂板(ban)(ban)(ban)上(shang)有覆(fu)土(tu)時,可設(she)塑料(liao)排水板(ban)(ban)(ban)濾(lv)水層有組織收集積水,但必須(xu)進行專(zhuan)項(xiang)節點設(she)計(ji)。c.當(dang)地(di)下(xia)室(shi)(shi)頂板(ban)(ban)(ban)被變形(xing)縫(feng)分隔時,變形(xing)縫(feng)應作為種植(zhi)分區邊(bian)界,不得跨縫(feng)種植(zhi)。d.當(dang)地(di)下(xia)室(shi)(shi)頂板(ban)(ban)(ban)上(shang)無覆(fu)土(tu)時,可在卷材防(fang)水的(de)(de)剛性保護層上(shang)直接(jie)做飾面(mian)層。e.也(ye)可采(cai)用單層防(fang)水做法。
施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)圖紙(zhi)的(de)(de)設(she)(she)(she)計(ji)(ji)是整個工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)的(de)(de)基(ji)礎,如果在(zai)(zai)設(she)(she)(she)計(ji)(ji)方(fang)案(an)的(de)(de)制定階段就存在(zai)(zai)不(bu)足(zu)或(huo)者(zhe)出現實際施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)數值發(fa)生(sheng)偏(pian)差等(deng)問題(ti)(ti),就會(hui)直接導致施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)問題(ti)(ti)的(de)(de)發(fa)生(sheng),對(dui)(dui)整個建(jian)筑(zhu)設(she)(she)(she)計(ji)(ji)過程(cheng)都造成嚴(yan)重的(de)(de)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)影響。提(ti)示建(jian)筑(zhu)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)開展必須要對(dui)(dui)房屋滲(shen)(shen)漏(lou)問題(ti)(ti)進(jin)行(xing)全面考慮,將可(ke)能出現在(zai)(zai)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)環(huan)節(jie)中的(de)(de)滲(shen)(shen)漏(lou)問題(ti)(ti),在(zai)(zai)設(she)(she)(she)計(ji)(ji)方(fang)案(an)的(de)(de)制定過程(cheng)中避免。在(zai)(zai)進(jin)行(xing)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)方(fang)案(an)的(de)(de)制定中,必須要嚴(yan)格(ge)按照(zhao)國(guo)家相關建(jian)設(she)(she)(she)規定來進(jin)行(xing),保證所采(cai)用的(de)(de)設(she)(she)(she)計(ji)(ji)方(fang)案(an)符合國(guo)家標(biao)準,同時(shi)設(she)(she)(she)計(ji)(ji)單位要在(zai)(zai)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)設(she)(she)(she)計(ji)(ji)前(qian),對(dui)(dui)建(jian)筑(zhu)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)所處的(de)(de)環(huan)境進(jin)行(xing)詳(xiang)細的(de)(de)分析(xi),了解(jie)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)所在(zai)(zai)地可(ke)能出現的(de)(de)氣候(hou)狀(zhuang)況,對(dui)(dui)可(ke)能出現的(de)(de)氣候(hou)問題(ti)(ti)制定好預防方(fang)案(an),保證施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)人員的(de)(de)順利(li)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)。
對于(yu)(yu)衛(wei)(wei)生(sheng)間的(de)防(fang)(fang)(fang)水(shui)(shui)防(fang)(fang)(fang)滲(shen)的(de)具體工(gong)(gong)(gong)(gong)作。首(shou)先,衛(wei)(wei)生(sheng)間是(shi)建筑(zhu)物中(zhong)(zhong)用水(shui)(shui)密集區,施(shi)工(gong)(gong)(gong)(gong)中(zhong)(zhong)應(ying)選用高質量的(de)防(fang)(fang)(fang)水(shui)(shui)材料(liao)與設施(shi)進(jin)行(xing)施(shi)工(gong)(gong)(gong)(gong),衛(wei)(wei)生(sheng)間的(de)滲(shen)水(shui)(shui)易(yi)發區應(ying)使用混凝土進(jin)行(xing)澆筑(zhu),排(pai)給水(shui)(shui)管(guan)道安設完成后(hou)必須(xu)堅持標(biao)準的(de)試壓檢(jian)測(ce),還(huan)要(yao)做好排(pai)水(shui)(shui)漕(cao)路。其(qi)次,在(zai)地下室的(de)防(fang)(fang)(fang)水(shui)(shui)防(fang)(fang)(fang)漏(lou)施(shi)工(gong)(gong)(gong)(gong)中(zhong)(zhong)則應(ying)重點加強對施(shi)工(gong)(gong)(gong)(gong)變形縫的(de)監控,在(zai)進(jin)行(xing)止水(shui)(shui)帶施(shi)工(gong)(gong)(gong)(gong)前(qian)必須(xu)對其(qi)嚴(yan)密性檢(jian)查,同時施(shi)工(gong)(gong)(gong)(gong)方(fang)還(huan)要(yao)對所用混凝土的(de)配比精度(du)進(jin)行(xing)把關,以免出現不可修復的(de)局面(mian)。對于(yu)(yu)衛(wei)(wei)生(sheng)間的(de)滲(shen)水(shui)(shui)防(fang)(fang)(fang)治,地下室與其(qi)有很多相似的(de)地方(fang),可以參照衛(wei)(wei)生(sheng)間防(fang)(fang)(fang)水(shui)(shui)防(fang)(fang)(fang)漏(lou)措(cuo)施(shi)進(jin)行(xing)完善。
涂刷防水層:衛生間是家庭防水的重點位置,欽州市高壓灌漿裝修時一定要做防水,以聚合物水泥基防水材料為例,有通用型GS防水材料和柔韌型JS防水材料,將材料涂刷兩遍,前后垂直交叉,單層厚度為0.8~1mm,兩層厚度不超過2mm。陰陽角、上下水管與地面的接縫處:滲漏多發生在穿過樓層的管根、地漏、衛生潔具及陰陽角等部位,原因是管根、地漏等部位松動、黏結不牢、涂刷不嚴密或防水層局部損壞、部件搭接長度不夠。這些邊邊角角是最容易出現滲漏的地方,專業高壓灌漿要(yao)注意細節的(de)施(shi)工(gong),防(fang)水(shui)(shui)(shui)材(cai)料一(yi)定要(yao)涂刷到(dao)位。管(guan)(guan)道、地漏(lou)等穿(chuan)越(yue)樓(lou)板時,其孔(kong)洞(dong)周(zhou)邊的(de)防(fang)水(shui)(shui)(shui)層必須(xu)認真施(shi)工(gong)。上(shang)下水(shui)(shui)(shui)管(guan)(guan)一(yi)律要(yao)做好水(shui)(shui)(shui)泥(ni)護根,從地面(mian)起向上(shang)刷10~20cm的(de)聚(ju)氨(an)酯防(fang)水(shui)(shui)(shui)材(cai)料,然后在地面(mian)再(zai)做聚(ju)氨(an)酯防(fang)水(shui)(shui)(shui)層,加上(shang)原(yuan)防(fang)水(shui)(shui)(shui)層,組(zu)成復合型防(fang)水(shui)(shui)(shui)層,以(yi)增強防(fang)水(shui)(shui)(shui)性能(neng)。
混(hun)(hun)凝土澆(jiao)筑(zhu)正值7~8月份高(gao)(gao)溫季節,易造成混(hun)(hun)凝土坍(tan)落度(du)損(sun)失(shi)加(jia)大(da),降低混(hun)(hun)凝土工作度(du)方面的(de)要(yao)求,加(jia)之可能出現的(de)運輸(shu)途中堵車或施(shi)工中出現臨時需處(chu)理的(de)問題,使澆(jiao)搗速度(du)減(jian)(jian)緩,延(yan)誤了混(hun)(hun)凝土的(de)入模時間(jian),因時間(jian)延(yan)長造成混(hun)(hun)凝土坍(tan)落度(du)損(sun)失(shi)加(jia)大(da),致(zhi)使不能滿足泵(beng)送要(yao)求,此時應嚴禁(jin)加(jia)入生水(shui)(shui)(shui)(shui),而應采(cai)取二次(ci)摻(chan)少量(liang)的(de)FDN2I減(jian)(jian)水(shui)(shui)(shui)(shui)劑(ji)(ji)(ji)(ji)的(de)后摻(chan)法,補償和恢復(fu)混(hun)(hun)凝土的(de)坍(tan)落度(du)損(sun)失(shi)。在(zai)配合比中FDN2I減(jian)(jian)水(shui)(shui)(shui)(shui)劑(ji)(ji)(ji)(ji)量(liang)為(wei)0.8%,地般該減(jian)(jian)水(shui)(shui)(shui)(shui)劑(ji)(ji)(ji)(ji)的(de)摻(chan)量(liang)地高(gao)(gao)為(wei)1%,在(zai)后摻(chan)減(jian)(jian)水(shui)(shui)(shui)(shui)劑(ji)(ji)(ji)(ji)時只考慮(lv)在(zai)0.2%以(yi)內。后摻(chan)法比先(xian)摻(chan)法或同(tong)摻(chan)法在(zai)相(xiang)同(tong)摻(chan)量(liang)下減(jian)(jian)水(shui)(shui)(shui)(shui)作用顯著提(ti)高(gao)(gao),是能補償坍(tan)落度(du)損(sun)失(shi)的(de)。但應注(zhu)意凡后摻(chan)減(jian)(jian)水(shui)(shui)(shui)(shui)劑(ji)(ji)(ji)(ji)的(de)運輸(shu)車,應快速攪拌(ban)30轉(zhuan)或1秒以(yi)上。其(qi)摻(chan)量(liang)和攪拌(ban)時間(jian)由(you)專(zhuan)人負(fu)責實施(shi)。
對于目前的(de)(de)(de)(de)(de)施工技術工藝來說,建筑(zhu)物(wu)的(de)(de)(de)(de)(de)外(wai)墻(qiang)(qiang)通(tong)常不會出現大面(mian)積的(de)(de)(de)(de)(de)滲(shen)漏(lou)現象,然而,這(zhe)部(bu)分(fen)極易(yi)被(bei)人疏(shu)忽,外(wai)墻(qiang)(qiang)的(de)(de)(de)(de)(de)滲(shen)水(shui)會對建筑(zhu)的(de)(de)(de)(de)(de)正常使用(yong)造成更嚴重的(de)(de)(de)(de)(de)影響。建筑(zhu)外(wai)墻(qiang)(qiang)滲(shen)水(shui)現象的(de)(de)(de)(de)(de)起因(yin)多樣(yang),除了人為原(yuan)因(yin),一般多因(yin)為建筑(zhu)結(jie)構的(de)(de)(de)(de)(de)變形,接縫不嚴密,外(wai)墻(qiang)(qiang)中的(de)(de)(de)(de)(de)管道(dao)季節性的(de)(de)(de)(de)(de)破(po)裂等等,由于原(yuan)因(yin)多樣(yang),并且伴有連(lian)鎖反應(ying),要(yao)求施工與(yu)維(wei)修(xiu)人員在對外(wai)墻(qiang)(qiang)滲(shen)水(shui)事故的(de)(de)(de)(de)(de)治理中應(ying)根(gen)據實地實際,查明原(yuan)因(yin),找出根(gen)源,細致分(fen)析采(cai)取具有針對性的(de)(de)(de)(de)(de)、能夠(gou)治根(gen)的(de)(de)(de)(de)(de)辦法進行(xing)維(wei)修(xiu)。發(fa)現施工材(cai)料(liao)對于外(wai)墻(qiang)(qiang)滲(shen)水(shui)漏(lou)水(shui)仍然是事故的(de)(de)(de)(de)(de)主要(yao)原(yuan)因(yin),建筑(zhu)材(cai)料(liao)主要(yao)采(cai)用(yong)普(pu)通(tong)混(hun)凝土(tu),雖然不易(yi)產生滲(shen)水(shui)事故,但這(zhe)樣(yang)材(cai)質(zhi)發(fa)生的(de)(de)(de)(de)(de)外(wai)墻(qiang)(qiang)滲(shen)漏(lou)事故的(de)(de)(de)(de)(de)出現比率高達百(bai)分(fen)之九十(shi)以上,如何在建筑(zhu)材(cai)料(liao)的(de)(de)(de)(de)(de)升級與(yu)技術革新上,解決滲(shen)水(shui)的(de)(de)(de)(de)(de)頑(wan)疾(ji),需要(yao)引起土(tu)建工作者高度(du)關注。