一、細石混凝土泵車的泵送要求有哪些

細(xi)石(shi)混凝(ning)(ning)土(tu)泵車是一種小型泵車，主(zhu)要適(shi)用(yong)于小型建筑物(wu)，是施(shi)工(gong)(gong)(gong)高效的砂漿(jiang)(jiang)輸(shu)送設(she)備，常用(yong)于地(di)暖工(gong)(gong)(gong)程(cheng)中細(xi)石(shi)混凝(ning)(ning)土(tu)填(tian)充(chong)層或(huo)砂漿(jiang)(jiang)填(tian)充(chong)層的大面積、高效率的施(shi)工(gong)(gong)(gong)，工(gong)(gong)(gong)程(cheng)建設(she)中細(xi)石(shi)混凝(ning)(ning)土(tu)和(he)生態環境建設(she)中的綠化土(tu)壤的輸(shu)送以及各(ge)類基(ji)礎樁的壓力(li)灌漿(jiang)(jiang)等(deng)。不過(guo)細(xi)石(shi)混凝(ning)(ning)土(tu)泵車對混凝(ning)(ning)土(tu)也是有一定的要求的：

1、混凝土品種

細石混凝(ning)土(tu)泵(beng)車泵(beng)送(song)(song)的(de)混凝(ning)土(tu)應當具有良好的(de)保水(shui)(shui)(shui)(shui)性能，使混凝(ning)土(tu)在泵(beng)送(song)(song)過(guo)程中不易泌水(shui)(shui)(shui)(shui)。普通硅酸鹽(yan)水(shui)(shui)(shui)(shui)泥、火(huo)山灰水(shui)(shui)(shui)(shui)泥的(de)保水(shui)(shui)(shui)(shui)性較(jiao)好，而(er)礦渣(zha)水(shui)(shui)(shui)(shui)泥的(de)保水(shui)(shui)(shui)(shui)性差(cha)，如用它來(lai)拌和(he)泵(beng)送(song)(song)混凝(ning)土(tu)，需加大水(shui)(shui)(shui)(shui)泥用量，適當增(zeng)大砂(sha)率或添加一部分粉煤灰，采用較(jiao)低的(de)坍落(luo)度。

2、混凝土用量

混(hun)(hun)凝(ning)(ning)土用量不足，泵送(song)容(rong)積(ji)效(xiao)率降(jiang)低，輸送(song)阻力(li)明顯(xian)增(zeng)加；混(hun)(hun)凝(ning)(ning)土用量過大(da)，則(ze)會使混(hun)(hun)凝(ning)(ning)土粘性過大(da)，輸送(song)阻力(li)增(zeng)大(da)，但泵送(song)容(rong)積(ji)效(xiao)率變(bian)化不大(da)。因此，同樣粒(li)徑、級(ji)配的(de)卵石(shi)骨(gu)(gu)(gu)料與(yu)碎石(shi)骨(gu)(gu)(gu)料相比(bi)，更(geng)適合使用碎石(shi)骨(gu)(gu)(gu)料。

3、細骨料

對于(yu)細骨(gu)料(liao)(liao)而言，人工破碎砂要比天然砂多(duo)用(yong)(yong)水(shui)(shui)(shui)泥(ni)(ni)。管(guan)徑越小、管(guan)道越長，要求(qiu)混(hun)凝(ning)土的流動性、潤滑(hua)性、保水(shui)(shui)(shui)性越高，水(shui)(shui)(shui)泥(ni)(ni)用(yong)(yong)量應(ying)增(zeng)大(da)。如(ru)果骨(gu)料(liao)(liao)級配適(shi)當則骨(gu)料(liao)(liao)粒徑越大(da)，水(shui)(shui)(shui)泥(ni)(ni)用(yong)(yong)量越少，如(ru)果是(shi)泵送輕骨(gu)料(liao)(liao)混(hun)凝(ning)土，則水(shui)(shui)(shui)泥(ni)(ni)用(yong)(yong)量應(ying)適(shi)當增(zeng)加。

該圖片由注冊用戶"荊湖酒徒"提供，版權聲明反饋

二、細石混凝土泵車泵送量多大

混凝(ning)(ning)(ning)土泵(beng)(beng)(beng)車的(de)(de)(de)泵(beng)(beng)(beng)送(song)量(liang)(liang)取決于它(ta)的(de)(de)(de)型號(hao)、尺寸和各項參數，一般普通的(de)(de)(de)地泵(beng)(beng)(beng)車每(mei)小時可泵(beng)(beng)(beng)送(song)約30立方米(mi)(mi)的(de)(de)(de)混凝(ning)(ning)(ning)土，天泵(beng)(beng)(beng)車的(de)(de)(de)泵(beng)(beng)(beng)送(song)量(liang)(liang)更大(da)一些，每(mei)小時能(neng)(neng)打(da)50立方米(mi)(mi)左右(you)。需(xu)要注意的(de)(de)(de)是(shi)，混凝(ning)(ning)(ning)土泵(beng)(beng)(beng)車只能(neng)(neng)用(yong)于泵(beng)(beng)(beng)送(song)密度不大(da)于2400kg/m3的(de)(de)(de)混凝(ning)(ning)(ning)土。

不過細石混凝土泵車屬于小型泵車，它的泵(beng)送(song)量(liang)會小一些，一般在每小時10立方米左右，另外，泵(beng)送(song)量(liang)的大小還(huan)與泵(beng)送(song)作業(ye)時工(gong)況不(bu)同有關，如打樓梯、圈梁與打基礎的泵(beng)送(song)量(liang)也會不(bu)一樣。