
問題1 灌(guan)漿套(tao)筒進場要做型(xing)式檢驗,工藝(yi)檢驗,接頭抗拉(la)強度(du)試驗,這幾個都是一(yi)回事嗎?
答:型式檢驗(yan)非常復雜,規定是(shi)(shi)由廠家去(qu)做(zuo)(zuo)(zuo)(zuo),有效期4年(nian)(證明廠家產品設計是(shi)(shi)合格(ge),等于(yu)汽車的(de)(de)合格(ge)證)。工(gong)(gong)(gong)藝檢驗(yan)是(shi)(shi)由構件廠在(zai)套(tao)筒使用前(qian)、施(shi)工(gong)(gong)(gong)單(dan)位灌漿前(qian)做(zuo)(zuo)(zuo)(zuo),做(zuo)(zuo)(zuo)(zuo)合格(ge)工(gong)(gong)(gong)人(ren)(ren)允許上崗(gang),做(zuo)(zuo)(zuo)(zuo)不(bu)合格(ge)就換(huan)工(gong)(gong)(gong)人(ren)(ren)(工(gong)(gong)(gong)藝檢驗(yan)相(xiang)當于(yu)測(ce)試工(gong)(gong)(gong)人(ren)(ren)手藝,拿駕(jia)照),如果(guo)是(shi)(shi)構件制作和篷漿施(shi)工(gong)(gong)(gong)是(shi)(shi)同一(yi)(yi)(yi)批人(ren)(ren),就只需要做(zuo)(zuo)(zuo)(zuo)一(yi)(yi)(yi)次工(gong)(gong)(gong)藝檢驗(yan)。施(shi)工(gong)(gong)(gong)過程中,每1000個(ge)接頭(tou)需要留(liu)一(yi)(yi)(yi)組3 個(ge)接頭(tou),是(shi)(shi)證明過程中合格(ge)(相(xiang)當于(yu)保(bao)證正常駕(jia)駛(shi))。三個(ge)試驗(yan)有一(yi)(yi)(yi)個(ge)出問題,工(gong)(gong)(gong)程都會無法(fa)驗(yan)收。最頻(pin)繁(fan)的(de)(de)是(shi)(shi)施(shi)工(gong)(gong)(gong)過程的(de)(de)檢驗(yan),為(wei)了(le)保(bao)險起見(jian),建議每一(yi)(yi)(yi)層制作6個(ge)接頭(tou)或者(zhe)9個(ge)接頭(tou)。
問(wen)題2 在墻(qiang)板吊裝(zhuang)過(guo)程中,很(hen)難(nan)一次性對準裝(zhuang)好,往(wang)往(wang)需要多次移(yi)動(dong)(dong)墻(qiang)體進行對位(wei)安裝(zhuang)調整位(wei)置和標高,如(ru)果先座漿,移(yi)動(dong)(dong)墻(qiang)體的(de)過(guo)程中,座漿料會隨著移(yi)動(dong)(dong)而出現新的(de)縫隙,不能保證(zheng)完全接觸,如(ru)何解決此問(wen)題;
答:因接縫(feng)一般為(wei)20mm,建議將墻體(ti)吊(diao)裝至離板面(mian)30mm處開始(shi)往下逐步調(diao)節高度(du)(與砌(qi)磚(zhuan)時擠揉同原理,切布專(zhuan)時一般不(bu)會(hui)先壓到(dao)底(di)再(zai)往上(shang)提的),如果接縫(feng)調(diao)節至小(xiao)于20mm后需要上(shang)提應重新鋪(pu)灰;
問(wen)題3 在坐漿的過(guo)程中(zhong),由于墻(qiang)體重力的原因部分(fen)座漿料會進(jin)入到套(tao)筒底部占用部分(fen)套(tao)筒灌漿料空間,應如何避(bi)免此問(wen)題?
答:座漿前在(zai)底部錨固鋼筋上套(tao)上我司產(chan)品"套(tao)簡安裝墊片"安裝時隨著墻體(ti)往(wang)下落(luo)位,墊片會封(feng)閉套(tao)筒底口
問(wen)題4 座漿(jiang)(jiang)料的技術(shu)指標(biao)如何,需要使用(yong)何種漿(jiang)(jiang)料,強(qiang)度(du)、下垂度(du)等要求如何,在墻體和(he)座漿(jiang)(jiang)料接觸(chu)之前坐(zuo)(zuo)漿(jiang)(jiang)高度(du)2cm還是(shi)考慮墻體的壓強(qiang)作用(yong)坐(zuo)(zuo)漿(jiang)(jiang)高度(du)大于2cm?
答(da):根據JGJ1-2014的(de)相(xiang)關要(yao)(yao)求,座漿(jiang)(jiang)(jiang)料應(ying)具(ju)有(you)早強、高(gao)強無收縮和微(wei)膨/脹(zhang)等基本特征,且(qie)砂漿(jiang)(jiang)(jiang)強度(du)(du)大于(yu)等于(yu)墻(qiang)板砼強度(du)(du)一(yi)個等級。鋪灰時(shi)在墻(qiang)體厚(hou)度(du)(du)方(fang)向(xiang)應(ying)鋪成中間40mm,兩(liang)邊20mm厚(hou)的(de)三(san)角形截面(mian)。由于(yu)現有(you)規范對座漿(jiang)(jiang)(jiang)料沒有(you)塌落度(du)(du)的(de)相(xiang)關數據,建(jian)議(yi)按切(qie)筑(zhu)砂漿(jiang)(jiang)(jiang)的(de)要(yao)(yao)求,取稠度(du)(du)為 50-70mm.