迄今為止,以水泥砂漿或混凝土制備的地坪是工業與民用建筑中應用最廣泛的地坪。隨著社會的發展,人們對現在地坪的性能功能需求也在增加,水泥自流平地坪材料在性能和功能方面都有了進一步的提高與發展。
水泥自流平地坪定義
水(shui)(shui)泥自流平地坪材料也稱(cheng)為(wei)水(shui)(shui)泥自流平砂漿,是有特殊功能的水(shui)(shui)泥砂漿。
使用時加(jia)水(shui)調拌成(cheng)漿狀后有著極(ji)好的流動性(xing),傾注于(yu)地(di)(di)面(mian)后稍微(wei)經過攤鋪就(jiu)可以(yi)自動流平,形成(cheng)很光滑的表面(mian)。水(shui)泥基自流平地(di)(di)坪(ping)材料可以(yi)泵送施工(gong),澆筑后可以(yi)自動找平,施工(gong)效(xiao)率高(gao),得到的地(di)(di)坪(ping)質(zhi)量穩定(ding)。
根據工(gong)(gong)程(cheng)的需要,施(shi)(shi)工(gong)(gong)時還可以在地(di)(di)坪層(ceng)中加設鋼筋骨架,這樣(yang)可以更好地(di)(di)滿(man)足對地(di)(di)坪的重荷載要求(qiu)。所(suo)以,水(shui)泥自流(liu)平地(di)(di)坪材料比起(qi)(qi)傳(chuan)統(tong)水(shui)泥基(ji)地(di)(di)坪材料,施(shi)(shi)工(gong)(gong)速度更快,平整(zheng)度好、不(bu)容易起(qi)(qi)灰。它既可以用于新地(di)(di)面的施(shi)(shi)工(gong)(gong),還可以用于修補已(yi)經破損、起(qi)(qi)砂、損壞的舊地(di)(di)面。
自流平水泥(ni)施工(gong)工(gong)藝使用
自流(liu)平水泥是保證卷材(cai)類地板施工(gong)(gong)質量和(he)裝修效果的最基本保證。由(you)于其重要性,必(bi)須(xu)嚴格(ge)按(an)照(zhao)施工(gong)(gong)工(gong)(gong)藝(yi)施工(gong)(gong)。
一、基(ji)礎地面(mian)的要(yao)求:基(ji)礎水泥地面(mian)要(yao)求清潔(jie)、干燥(zao)、平整。
二、具體如下:
1、水泥(ni)砂(sha)漿與地面間不能空殼
2、水泥砂漿(jiang)面(mian)不能有砂粒,砂漿(jiang)面(mian)保(bao)持清(qing)潔
3、水泥(ni)面必須平整(zheng)、要求兩米范圍內高低差小于4mm.?
4、地面必須干燥,含(han)水率用專用測試儀器測量不超(chao)過(guo)17度(du)。
5、基層水泥強(qiang)度(du)不(bu)得小于10Mpa。
二、施(shi)工前的準備:在自(zi)流平(ping)(ping)(ping)水(shui)(shui)(shui)泥(ni)(ni)施(shi)工前,必須(xu)用(yong)(yong)打磨(mo)(mo)機對基(ji)礎(chu)地(di)(di)(di)(di)面(mian)(mian)進行(xing)打磨(mo)(mo),磨(mo)(mo)掉地(di)(di)(di)(di)面(mian)(mian)的雜質,浮塵(chen)和砂粒(li)。把局部高起較多的地(di)(di)(di)(di)平(ping)(ping)(ping)磨(mo)(mo)平(ping)(ping)(ping)。打磨(mo)(mo)后掃掉灰塵(chen),用(yong)(yong)吸塵(chen)器吸干(gan)凈。清潔(jie)好(hao)地(di)(di)(di)(di)面(mian)(mian)后,上自(zi)流平(ping)(ping)(ping)水(shui)(shui)(shui)泥(ni)(ni)前必須(xu)用(yong)(yong)表(biao)面(mian)(mian)處(chu)(chu)(chu)(chu)理劑處(chu)(chu)(chu)(chu)理,按要求把處(chu)(chu)(chu)(chu)理劑稀釋(shi),用(yong)(yong)不脫毛(mao)的羊(yang)毛(mao)滾(gun)按先橫(heng)后豎的方向把地(di)(di)(di)(di)面(mian)(mian)處(chu)(chu)(chu)(chu)理劑均(jun)(jun)勻地(di)(di)(di)(di)涂(tu)在地(di)(di)(di)(di)面(mian)(mian)上。要保證涂(tu)抹均(jun)(jun)勻,不留間隙。涂(tu)好(hao)處(chu)(chu)(chu)(chu)理劑后根據不同廠(chang)家產品性能的不同,等(deng)待一定時間即可進行(xing)上面(mian)(mian)自(zi)流平(ping)(ping)(ping)水(shui)(shui)(shui)泥(ni)(ni)的施(shi)工。水(shui)(shui)(shui)泥(ni)(ni)表(biao)面(mian)(mian)處(chu)(chu)(chu)(chu)理劑能增大(da)自(zi)流平(ping)(ping)(ping)水(shui)(shui)(shui)泥(ni)(ni)與地(di)(di)(di)(di)面(mian)(mian)的粘結力,防止自(zi)流平(ping)(ping)(ping)水(shui)(shui)(shui)泥(ni)(ni)的脫殼(ke)和開裂(lie)。?
三(san)、攪拌(ban)(ban)(ban)(ban)水(shui)泥(ni)自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping):?準(zhun)備好一個(ge)足夠大的(de)(de)(de)(de)(de)桶,嚴格(ge)按照自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)廠家的(de)(de)(de)(de)(de)水(shui)灰(hui)比加入水(shui),用電動攪拌(ban)(ban)(ban)(ban)器把(ba)(ba)自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)徹(che)底(di)攪拌(ban)(ban)(ban)(ban)。攪拌(ban)(ban)(ban)(ban)分(fen)兩次(ci)進行,通常首次(ci)攪拌(ban)(ban)(ban)(ban)約(yue)5—7分(fen)鐘(zhong)(zhong),中間需(xu)停頓2分(fen)鐘(zhong)(zhong),讓(rang)其(qi)發生(sheng)反應,之后再攪拌(ban)(ban)(ban)(ban)約(yue)3分(fen)鐘(zhong)(zhong)。攪拌(ban)(ban)(ban)(ban)需(xu)徹(che)底(di),不(bu)可有塊狀或干粉出現。攪拌(ban)(ban)(ban)(ban)好的(de)(de)(de)(de)(de)自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)水(shui)泥(ni)須呈流(liu)體(ti)狀。?攪拌(ban)(ban)(ban)(ban)好的(de)(de)(de)(de)(de)自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)盡量在半個(ge)小時(shi)(shi)之內使用。把(ba)(ba)自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)水(shui)泥(ni)倒在地(di)面上,用帶齒的(de)(de)(de)(de)(de)靶(ba)子把(ba)(ba)自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)靶(ba)開,根據(ju)要(yao)求的(de)(de)(de)(de)(de)厚度(du)靶(ba)到不(bu)同(tong)大小的(de)(de)(de)(de)(de)面積。待其(qi)自(zi)(zi)(zi)(zi)然流(liu)平(ping)(ping)(ping)后用帶齒的(de)(de)(de)(de)(de)滾子在上面縱橫(heng)滾動,放出其(qi)中的(de)(de)(de)(de)(de)氣體(ti),防止起泡。需(xu)特別注意自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)水(shui)泥(ni)搭接處的(de)(de)(de)(de)(de)平(ping)(ping)(ping)整。?根據(ju)現象不(bu)同(tong)的(de)(de)(de)(de)(de)溫度(du),濕度(du)和(he)通風情(qing)況(kuang),自(zi)(zi)(zi)(zi)流(liu)平(ping)(ping)(ping)水(shui)泥(ni)需(xu)8—24小時(shi)(shi)后方能徹(che)底(di)干透(tou),干透(tou)前不(bu)可進行下一步的(de)(de)(de)(de)(de)施工。