
問題1 灌(guan)漿套筒進(jin)場要做型式檢驗(yan),工藝檢驗(yan),接頭抗拉強(qiang)度試驗(yan),這幾個都是一回事嗎?
答:型式檢(jian)(jian)(jian)驗非常復雜(za),規定是(shi)由廠家(jia)去做(zuo),有效期4年(證明(ming)廠家(jia)產品設計是(shi)合(he)(he)格,等于(yu)汽車(che)的合(he)(he)格證)。工(gong)(gong)(gong)藝檢(jian)(jian)(jian)驗是(shi)由構件廠在(zai)套筒使用前(qian)、施(shi)工(gong)(gong)(gong)單位灌漿前(qian)做(zuo),做(zuo)合(he)(he)格工(gong)(gong)(gong)人允(yun)許上崗,做(zuo)不合(he)(he)格就換(huan)工(gong)(gong)(gong)人(工(gong)(gong)(gong)藝檢(jian)(jian)(jian)驗相(xiang)當于(yu)測試工(gong)(gong)(gong)人手藝,拿駕(jia)照),如果(guo)是(shi)構件制作和(he)篷漿施(shi)工(gong)(gong)(gong)是(shi)同一(yi)批(pi)人,就只需要做(zuo)一(yi)次工(gong)(gong)(gong)藝檢(jian)(jian)(jian)驗。施(shi)工(gong)(gong)(gong)過(guo)程中,每1000個(ge)接(jie)(jie)(jie)頭(tou)需要留一(yi)組(zu)3 個(ge)接(jie)(jie)(jie)頭(tou),是(shi)證明(ming)過(guo)程中合(he)(he)格(相(xiang)當于(yu)保證正常駕(jia)駛)。三個(ge)試驗有一(yi)個(ge)出(chu)問(wen)題(ti),工(gong)(gong)(gong)程都會無法驗收。最頻繁的是(shi)施(shi)工(gong)(gong)(gong)過(guo)程的檢(jian)(jian)(jian)驗,為了(le)保險(xian)起(qi)見,建議每一(yi)層制作6個(ge)接(jie)(jie)(jie)頭(tou)或(huo)者9個(ge)接(jie)(jie)(jie)頭(tou)。
問題2 在墻(qiang)(qiang)(qiang)板吊裝過(guo)程(cheng)(cheng)中,很難一次(ci)性對(dui)(dui)準(zhun)裝好,往(wang)往(wang)需要多次(ci)移(yi)動(dong)(dong)墻(qiang)(qiang)(qiang)體進行對(dui)(dui)位(wei)安裝調整(zheng)位(wei)置和標高,如果先(xian)座(zuo)漿,移(yi)動(dong)(dong)墻(qiang)(qiang)(qiang)體的(de)過(guo)程(cheng)(cheng)中,座(zuo)漿料會(hui)隨(sui)著移(yi)動(dong)(dong)而出現新的(de)縫隙,不能(neng)保(bao)證完全接觸,如何解決(jue)此問題;
答:因接縫一般(ban)(ban)為20mm,建議將墻體吊(diao)裝(zhuang)至離板面30mm處開始往(wang)下逐步調節(jie)高度(與砌磚時擠揉(rou)同原(yuan)理(li),切布專時一般(ban)(ban)不會先壓到底(di)再往(wang)上提(ti)的),如果接縫調節(jie)至小于20mm后需要(yao)上提(ti)應重新鋪灰;
問題(ti)3 在坐漿的過程中,由于(yu)墻體重力的原因部(bu)(bu)(bu)分(fen)(fen)座漿料(liao)會進(jin)入到套筒(tong)底部(bu)(bu)(bu)占(zhan)用(yong)部(bu)(bu)(bu)分(fen)(fen)套筒(tong)灌(guan)漿料(liao)空間(jian),應如何避免此問題(ti)?
答:座漿前在底(di)部錨固鋼筋上套(tao)上我司產品"套(tao)簡安(an)(an)裝(zhuang)墊(dian)片"安(an)(an)裝(zhuang)時隨著墻體往下落(luo)位,墊(dian)片會(hui)封閉套(tao)筒底(di)口
問(wen)題(ti)4 座漿(jiang)(jiang)料(liao)的技術指標(biao)如何(he),需要使用何(he)種漿(jiang)(jiang)料(liao),強(qiang)度(du)、下垂度(du)等要求(qiu)如何(he),在墻體和座漿(jiang)(jiang)料(liao)接觸之前(qian)坐(zuo)漿(jiang)(jiang)高(gao)度(du)2cm還是考慮墻體的壓強(qiang)作用坐(zuo)漿(jiang)(jiang)高(gao)度(du)大(da)于2cm?
答(da):根據JGJ1-2014的(de)(de)相(xiang)關要求,座漿料(liao)應具有(you)早強(qiang)、高(gao)強(qiang)無收縮和微膨/脹等基本特征(zheng),且砂(sha)漿強(qiang)度(du)大于(yu)等于(yu)墻(qiang)板砼強(qiang)度(du)一個等級(ji)。鋪灰(hui)時(shi)在墻(qiang)體厚度(du)方向應鋪成中間40mm,兩邊20mm厚的(de)(de)三角形截(jie)面(mian)。由于(yu)現有(you)規范對座漿料(liao)沒有(you)塌落度(du)的(de)(de)相(xiang)關數據,建議(yi)按切筑砂(sha)漿的(de)(de)要求,取稠度(du)為(wei) 50-70mm.