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屋面(mian)(mian)(mian)的(de)平(ping)面(mian)(mian)(mian)和立(li)面(mian)(mian)(mian)交(jiao)(jiao)角(jiao)處、暗地室底面(mian)(mian)(mian)和墻面(mian)(mian)(mian)內內政(zheng)角(jiao)處、檐口(kou)和天溝交(jiao)(jiao)接處、天溝轉角(jiao)處、兩(liang)個立(li)面(mian)(mian)(mian)轉角(jiao)處構成(cheng)陰陽角(jiao)。解釋這(zhe)些(xie)部(bu)位(wei)常由于混凝土、沙漿干縮和溫(wen)差變形發作應(ying)力集中招致開裂,有些(xie)破綻寬(kuan)(kuan)度(du)可(ke)裁減到5mm。陰陽角(jiao)的(de)加(jia)(jia)(jia)(jia)強(qiang)層(ceng)可(ke)采用(yong)(yong)卷材(cai)(cai)條,即(ji)在交(jiao)(jiao)角(jiao)處鋪(pu)(pu)貼(tie)1層(ceng)100~150mm寬(kuan)(kuan)的(de)卷材(cai)(cai)條予以(yi)加(jia)(jia)(jia)(jia)強(qiang)。但由于卷材(cai)(cai)較硬挺,在交(jiao)(jiao)角(jiao)處難以(yi)鋪(pu)(pu)平(ping)、鋪(pu)(pu)實,屢屢采用(yong)(yong)材(cai)(cai)料(liao)加(jia)(jia)(jia)(jia)加(jia)(jia)(jia)(jia)強(qiang)胎體布作為加(jia)(jia)(jia)(jia)強(qiang)層(ceng),即(ji)在交(jiao)(jiao)角(jiao)處涂(tu)150~200mm寬(kuan)(kuan)、厚1~2mm的(de)加(jia)(jia)(jia)(jia)胎體的(de)涂(tu)層(ceng)。胎體鋪(pu)(pu)貼(tie)時切忌(ji)拉緊,應(ying)廢弛不皺(zhou)。在3面(mian)(mian)(mian)交(jiao)(jiao)角(jiao)處采用(yong)(yong)材(cai)(cai)料(liao)加(jia)(jia)(jia)(jia)強(qiang),效果就更好了(le)。
發現對(dui)眾(zhong)多堵(du)(du)漏(lou)(lou)(lou)(lou)材(cai)料(liao)和(he)防(fang)水(shui)(shui)材(cai)料(liao)的(de)技(ji)術性能不了(le)解,不重視研究防(fang)水(shui)(shui)技(ji)術,國內的(de)防(fang)水(shui)(shui)堵(du)(du)漏(lou)(lou)(lou)(lou)材(cai)料(liao)大多不過關。施工時(shi)不找漏(lou)(lou)(lou)(lou)水(shui)(shui)點、漏(lou)(lou)(lou)(lou)水(shui)(shui)線(xian);見(jian)縫漏(lou)(lou)(lou)(lou)水(shui)(shui)即騎縫打眼(yan)灌漿(jiang);見(jian)墻面(mian)(mian)滲水(shui)(shui)即滿墻打眼(yan)灌漿(jiang)或(huo)在墻面(mian)(mian)涂刷表面(mian)(mian)材(cai)料(liao);見(jian)沉降縫漏(lou)(lou)(lou)(lou)水(shui)(shui)即剔(ti)鑿填充剛性防(fang)水(shui)(shui)材(cai)料(liao)或(huo)灌注熱(re)瀝(li)青堵(du)(du)漏(lou)(lou)(lou)(lou)等等,提示這種(zhong)盲(mang)目(mu)(mu)打眼(yan)、盲(mang)目(mu)(mu)灌漿(jiang)、盲(mang)目(mu)(mu)堵(du)(du)漏(lou)(lou)(lou)(lou)的(de)最終結果(guo)是鉆孔不進漿(jiang)或(huo)不易進漿(jiang),沉降縫堵(du)(du)剛性防(fang)水(shui)(shui)材(cai)料(liao),裂縫后(hou)繼續(xu)漏(lou)(lou)(lou)(lou)水(shui)(shui),未(wei)真正將漏(lou)(lou)(lou)(lou)水(shui)(shui)點、漏(lou)(lou)(lou)(lou)水(shui)(shui)線(xian)、漏(lou)(lou)(lou)(lou)水(shui)(shui)縫堵(du)(du)嚴,造成堵(du)(du)漏(lou)(lou)(lou)(lou)不成功(gong);單純采用各(ge)種(zhong)材(cai)料(liao)在砂漿(jiang)層或(huo)混(hun)凝土(tu)表面(mian)(mian)涂刷成膜堵(du)(du)漏(lou)(lou)(lou)(lou),忽視了(le)隱蔽漏(lou)(lou)(lou)(lou)水(shui)(shui)點、漏(lou)(lou)(lou)(lou)水(shui)(shui)縫的(de)處(chu)理,只有點堵(du)(du)、線(xian)堵(du)(du)和(he)面(mian)(mian)涂堵(du)(du)漏(lou)(lou)(lou)(lou)相結合才(cai)能成功(gong);對(dui)重點漏(lou)(lou)(lou)(lou)水(shui)(shui)部位和(he)沉降縫堵(du)(du)漏(lou)(lou)(lou)(lou)應采用多道防(fang)水(shui)(shui)線(xian)。
如果陽臺的地面上出現了積水或者陽臺漏水,這個時候就要對陽臺進行桂林市防水補漏設計了。陽臺補漏完成之后,新型防水補漏要注意加強(qiang)抗(kang)滲砼的養護(hu)(hu),派專人完(wan)成,保(bao)證砼表(biao)面保(bao)持濕(shi)(shi)潤狀態(tai),養護(hu)(hu)時間不(bu)少于14天。最后進(jin)行外墻防水施(shi)(shi)工(gong)的時候,先進(jin)行結構外墻蓄(xu)水試驗確保(bao)無(wu)滲漏(lou)現象(xiang),對(dui)(dui)有(you)濕(shi)(shi)澤(ze)的地方增加一道防水涂料,對(dui)(dui)螺(luo)栓孔(kong)處,鑿除小(xiao)木塊用1:2水泥砂漿修補,對(dui)(dui)陽角及(ji)施(shi)(shi)工(gong)縫處在大(da)面防水前(qian)必須做一道防水附加層。
DH-814Ⅱ型聚氨酯幫助堵漏(lou)膠是遇水(shui)即(ji)反應(ying)(ying),由(you)于水(shui)參(can)與了反應(ying)(ying),漿(jiang)(jiang)液(ye)不會(hui)被水(shui)稀釋沖走(zou),這是其他灌(guan)漿(jiang)(jiang)材(cai)料(liao)所不具備的(de)優點;漿(jiang)(jiang)液(ye)在(zai)壓力作用(yong)下(xia),灌(guan)入混凝 土裂(lie)縫(feng)(feng),同時(shi)向裂(lie)縫(feng)(feng)周(zhou)圍蔓延,當遇水(shui)時(shi)又發(fa)生反應(ying)(ying),發(fa)泡膨(peng)脹,形成二次(ci)蔓延,繼續滲入混凝土縫(feng)(feng)隙(xi),形成網狀結構,成為密度(du)小、含(han)水(shui)的(de)彈性體,有(you)良好的(de) 適(shi)應(ying)(ying)變形能(neng)力,止水(shui)性好。灌(guan)漿(jiang)(jiang)孔(kong)(kong)的(de)設計(ji)和布(bu)(bu)孔(kong)(kong) 灌(guan)漿(jiang)(jiang)孔(kong)(kong)的(de)布(bu)(bu)孔(kong)(kong)有(you)騎縫(feng)(feng)和斜孔(kong)(kong)兩種(zhong)形式,建(jian)議根據實際情況(kuang)和需(xu)要加以(yi)選擇,必(bi)要時(shi)兩者并用(yong)。(1) 灌(guan)漿(jiang)(jiang)孔(kong)(kong)的(de)設計(ji):灌(guan)漿(jiang)(jiang)孔(kong)(kong)的(de)位置,應(ying)(ying)使孔(kong)(kong)和漏(lou)水(shui)裂(lie)縫(feng)(feng)孔(kong)(kong)隙(xi)相交,并選在(zai)漏(lou)水(shui)量深處。(2) 布(bu)(bu)孔(kong)(kong)原則:注漿(jiang)(jiang)孔(kong)(kong)眼(yan)的(de)位置和數(shu)量,需(xu)根據不同漏(lou)水(shui)情況(kuang)進(jin)行合理安排,以(yi)導出(chu)漏(lou)水(shui)為目的(de),在(zai)集中漏(lou)水(shui)處布(bu)(bu)孔(kong)(kong),裂(lie)縫(feng)(feng)大,水(shui)流量大,則孔(kong)(kong)距(ju)大,縫(feng)(feng)小則孔(kong)(kong)距(ju)小。