自密(mi)實混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)坍落(luo)(luo)(luo)擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)度(du)(du)(du)底(di)板(ban)(ban)執(zhi)行(xing)標準《自密(mi)實混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)應(ying)用(yong)(yong)技(ji)術規程(cheng)》JGJ/T283-2012一(yi)、本方法用(yong)(yong)于測(ce)(ce)量新拌(ban)(ban)自密(mi)實混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)的(de)(de)(de)填(tian)充性能。自密(mi)實混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)坍落(luo)(luo)(luo)擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)度(du)(du)(du) 自密(mi)實流動度(du)(du)(du)儀(yi) 擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)度(du)(du)(du)儀(yi)板(ban)(ban)儀(yi)器(qi)應(ying)符合(he)(he)下(xia)列要求：1 混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)應(ying)符合(he)(he)現行(xing)行(xing)業標準《混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)坍落(luo)(luo)(luo)度(du)(du)(du)儀(yi)》JG 3021相關(guan)規定(ding)。2 底(di)板(ban)(ban)應(ying)為硬質不(bu)(bu)吸水(shui)的(de)(de)(de)光滑正方形(xing)平(ping)(ping)(ping)板(ban)(ban)，邊長(chang)為1000mm，最(zui)大(da)撓度(du)(du)(du)不(bu)(bu)超(chao)過3mm。在(zai)(zai)平(ping)(ping)(ping)板(ban)(ban)表面標出坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)的(de)(de)(de)中(zhong)心(xin)位(wei)置和直(zhi)徑(jing)分別(bie)為500mm、600mm、700mm、800mm及900mm的(de)(de)(de)同心(xin)圓(yuan)，3 鏟(chan)子、抹刀、鋼(gang)尺(精(jing)度(du)(du)(du)1mm)、秒表、盛料(liao)(liao)容器(qi)等輔(fu)助工(gong)具。自密(mi)實混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)度(du)(du)(du)儀(yi)試驗步(bu)驟應(ying)符合(he)(he)下(xia)列規定(ding)：1 潤濕底(di)板(ban)(ban)和坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)，在(zai)(zai)坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)內(nei)(nei)壁和底(di)板(ban)(ban)上應(ying)無明水(shui)；底(di)板(ban)(ban)應(ying)放(fang)置在(zai)(zai)堅實的(de)(de)(de)水(shui)平(ping)(ping)(ping)面上，并把筒(tong)(tong)(tong)放(fang)在(zai)(zai)底(di)板(ban)(ban)中(zhong)心(xin)，然后(hou)用(yong)(yong)腳踩住(zhu)兩(liang)邊的(de)(de)(de)腳踏(ta)板(ban)(ban)，坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)在(zai)(zai)裝(zhuang)料(liao)(liao)時(shi)(shi)(shi)應(ying)保持在(zai)(zai)固定(ding)的(de)(de)(de)位(wei)置。2 在(zai)(zai)新拌(ban)(ban)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)試樣(yang)不(bu)(bu)產生離析的(de)(de)(de)狀態下(xia)，將其填(tian)入(ru)坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)內(nei)(nei)，利用(yong)(yong)盛料(liao)(liao)容器(qi)使(shi)(shi)內(nei)(nei)盛的(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)拌(ban)(ban)合(he)(he)物均(jun)勻流出，不(bu)(bu)分層一(yi)次(ci)填(tian)充至滿，自開(kai)始(shi)入(ru)料(liao)(liao)至填(tian)充結束應(ying)在(zai)(zai)1.5min內(nei)(nei)完成(cheng)，且不(bu)(bu)施以(yi)任何搗實或振動。3 用(yong)(yong)刮刀刮除(chu)坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)中(zhong)已填(tian)充混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)頂部的(de)(de)(de)余料(liao)(liao)，使(shi)(shi)其與坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)的(de)(de)(de)上緣(yuan)齊平(ping)(ping)(ping)后(hou)，隨即將坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)沿鉛直(zhi)方向(xiang)勻速地(di)向(xiang)上提起750px的(de)(de)(de)高度(du)(du)(du)，提起時(shi)(shi)(shi)間宜控制(zhi)在(zai)(zai)3s左右。待混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)的(de)(de)(de)停止(zhi)(zhi)流動后(hou)，測(ce)(ce)量展(zhan)(zhan)(zhan)開(kai)圓(yuan)形(xing)的(de)(de)(de)最(zui)大(da)直(zhi)徑(jing)，以(yi)及與最(zui)大(da)直(zhi)徑(jing)呈垂(chui)直(zhi)方向(xiang)的(de)(de)(de)直(zhi)徑(jing)，測(ce)(ce)定(ding)直(zhi)徑(jing)時(shi)(shi)(shi)量測(ce)(ce)一(yi)次(ci)即可。自坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)提起至測(ce)(ce)量拌(ban)(ban)合(he)(he)物擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)直(zhi)徑(jing)結束應(ying)控制(zhi)在(zai)(zai)40s內(nei)(nei)完成(cheng)。4 測(ce)(ce)定(ding)擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)度(du)(du)(du)達(da)500mm的(de)(de)(de)時(shi)(shi)(shi)間T50時(shi)(shi)(shi)，應(ying)自坍落(luo)(luo)(luo)度(du)(du)(du)筒(tong)(tong)(tong)提起時(shi)(shi)(shi)開(kai)始(shi)，至擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)開(kai)的(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)外緣(yuan)初觸平(ping)(ping)(ping)板(ban)(ban)上所繪直(zhi)徑(jing)500mm的(de)(de)(de)圓(yuan)周為止(zhi)(zhi)，以(yi)秒表測(ce)(ce)定(ding)時(shi)(shi)(shi)間，精(jing)確至0.1s。四、混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)的(de)(de)(de)擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)度(du)(du)(du)為混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)拌(ban)(ban)合(he)(he)物坍落(luo)(luo)(luo)擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)終止(zhi)(zhi)后(hou)擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)面相互垂(chui)直(zhi)的(de)(de)(de)兩(liang)個直(zhi)徑(jing)的(de)(de)(de)平(ping)(ping)(ping)均(jun)值，應(ying)精(jing)確至5mm。1、 觀察最(zui)終坍落(luo)(luo)(luo)后(hou)的(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)狀況，如發(fa)現粗骨料(liao)(liao)在(zai)(zai)中(zhong)央堆積或最(zui)終擴(kuo)(kuo)(kuo)展(zhan)(zhan)(zhan)后(hou)的(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)邊緣(yuan)有較多水(shui)泥漿析出，表示此混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)拌(ban)(ban)合(he)(he)物抗離析性不(bu)(bu)好，應(ying)予記錄。

刻線混凝土擴展度測定儀坍落度筒+底板價格

刻線混凝土擴展度測定儀坍落度筒+底板價格