電動砂當量試驗(yan)儀，

額(e)定功率:180W

自控定(ding)時:30S/次 外形尺寸:560×320×360

配重活塞:1kg±5g

圓柱形塑料試筒:

內徑:32mm±0.25mm 高度:420mm±0.25mm

沖洗管外徑:6mm±0.25mm 內徑:4mm±0.2mm

試驗(yan)步(bu)驟 

1,試(shi)(shi)驗(yan)(yan) 為了(le)不(bu)影響(xiang)沉淀(dian)的(de)過(guo)程,試(shi)(shi)驗(yan)(yan)必須在(zai)無擾動(dong)的(de)水平(ping)臺上(shang)進行(xing).隨時檢查試(shi)(shi)驗(yan)(yan)的(de)沖洗(xi)管口,防止堵(du)塞.試(shi)(shi)驗(yan)(yan)過(guo)程中,沖洗(xi)液(ye)的(de)溫(wen)度應保持20±2℃范圍(wei)內.由于(yu)塑(su)料(liao)在(zai)太陽(yang)下(xia)容易變成不(bu)透明,應盡量避免將塑(su)料(liao)器皿直接暴露(lu)在(zai)太陽(yang)下(xia).盛(sheng)試(shi)(shi)驗(yan)(yan)溶液(ye)的(de)塑(su)料(liao)器皿用(yong)畢要清洗(xi)干凈.

(1)用(yong)沖洗(xi)管將(jiang)沖洗(xi)液吸入試(shi)筒(tong)直到100mm刻度(約(yue)80毫升).

(2)把相當于120±1g干料重的濕(shi)樣用(yong)漏(lou)斗(dou)倒(dao)入豎立試筒中.

(3)反(fan)復(fu)敲打試筒下部,以除去氣泡使試樣濕(shi)潤,靜置10min.

(4)試樣靜(jing)置10±1min結束后,用(yong)橡(xiang)膠塞堵住試筒,將試筒水平(ping)固定在(zai)振蕩器上.(注意(yi)試筒底部(bu)方頭碰(peng)螺絲.)

(5)開動(dong)振(zhen)(zhen)(zhen)蕩(dang)器(qi)(qi),在30±1S的時(shi)間(jian)內振(zhen)(zhen)(zhen)蕩(dang)90次.用(yong)人工振(zhen)(zhen)(zhen)蕩(dang)時(shi),要用(yong)手(shou)將(jiang)試筒橫向水平放置(zhi),僅需手(shou)腕振(zhen)(zhen)(zhen)蕩(dang),不必(bi)晃動(dong)手(shou)臂(bei),振(zhen)(zhen)(zhen)幅為203±25mm,振(zhen)(zhen)(zhen)蕩(dang)時(shi)間(jian)和(he)次數與振(zhen)(zhen)(zhen)蕩(dang)器(qi)(qi)相同.然(ran)后將(jiang)試筒取下(xia),豎直放回(hui)試驗臺上,擰下(xia)橡膠(jiao)塞.

(6)將(jiang)沖洗(xi)管(guan)(guan)插(cha)入試(shi)筒中,用沖洗(xi)液(ye)迅速沖洗(xi)附在試(shi)筒壁上的(de)集料,然后將(jiang)沖洗(xi)管(guan)(guan)插(cha)到(dao)試(shi)筒底部,慢慢轉動(dong)沖洗(xi)管(guan)(guan),同時(shi)勻速緩慢提高沖洗(xi)管(guan)(guan),使(shi)附著在集料表面的(de)細粒雜質浮(fu)上來,直至溶液(ye)達到(dao)380mm刻度線為止.

(7)緩慢勻速向(xiang)想(xiang)拔出沖(chong)(chong)洗管(guan),當液(ye)面(mian)位(wei)于(yu)380mm刻度線時(shi),切斷沖(chong)(chong)洗管(guan)的液(ye)流,使液(ye)面(mian)保持380mm刻度線,然后在沒有(you)擾動(dong)的情況下(xia)靜置(zhi)20min±15S.

注意事項 

1,試驗完畢后,須將活塞擦洗干凈.

2,避免圓(yuan)形試筒磕(ke)碰.

3,定(ding)期(qi)向振蕩(dang)器滑動桿上注潤滑油

安徽合肥市路達儀器(qi)(qi)建材有(you)限公(gong)司(si)主營、建筑儀器(qi)(qi)、瀝(li)青儀器(qi)(qi)、土工儀器(qi)(qi)、水泥實(shi)(shi)驗儀器(qi)(qi)、分析儀器(qi)(qi)、測繪儀器(qi)(qi)、實(shi)(shi)驗室成(cheng)套(tao)設(she)備(bei)、攪拌站成(cheng)套(tao)設(she)備(bei)。我公(gong)司(si)有(you)多(duo)名維修人員為您確保售后(hou)及維修設(she)備(bei)，另我公(gong)司(si)對外出(chu)租(zu)成(cheng)套(tao)實(shi)(shi)驗儀器(qi)(qi)設(she)備(bei)。