分類:行業新聞發布時間:2019/10/31
隨著時代的開展和開展新農村建設的要求,現代化建設中房屋混凝土質量逐漸被人重視起來,以往的人力攪拌和半機械攪拌設施、施工效率慢而且攪拌不均勻導致混凝土質量不過關、從而影響到房屋質量。面對鄉村修建市場這種狀況、鼎峰三民研發出混凝土輸送泵、不(bu)(bu)(bu)僅大(da)大(da)節省了人力(li)成本而且(qie)混(hun)凝土(tu)(tu)質量(liang)達(da)到(dao)商品(pin)混(hun)凝土(tu)(tu)的(de)(de)要(yao)求(qiu),加(jia)上(shang)汽車運送(song)(song)(song)、不(bu)(bu)(bu)受空(kong)間(jian)限制、具有移動(dong)轉場快的(de)(de)特(te)點。混(hun)凝土(tu)(tu)輸送(song)(song)(song)泵(beng)泵(beng)送(song)(song)(song)砼(tong)是混(hun)凝土(tu)(tu)拌(ban)(ban)(ban)(ban)合(he)(he)料在(zai)泵(beng)送(song)(song)(song)推動(dong)下(xia)(xia)沿著輸送(song)(song)(song)管(guan)(guan)進行輸送(song)(song)(song)和澆(jiao)筑的(de)(de),因此砼(tong)不(bu)(bu)(bu)但要(yao)滿足(zu)設計規(gui)定的(de)(de)強度,耐久性(xing)(xing)(xing)等要(yao)求(qiu),還要(yao)滿足(zu)管(guan)(guan)道輸送(song)(song)(song)要(yao)求(qiu),砼(tong)拌(ban)(ban)(ban)(ban)合(he)(he)料能(neng)夠順利(li)通過管(guan)(guan)道,摩擦(ca)阻力(li)小,不(bu)(bu)(bu)離(li)析,不(bu)(bu)(bu)阻塞,可泵(beng)性(xing)(xing)(xing)好(hao)。對于初(chu)次使(shi)用(yong)混(hun)凝土(tu)(tu)輸送(song)(song)(song)泵(beng)的(de)(de)新(xin)用(yong)戶,應該(gai)不(bu)(bu)(bu)會(hui)產生阻塞,泵(beng)送(song)(song)(song)性(xing)(xing)(xing)能(neng)好(hao)的(de)(de)砼(tong)拌(ban)(ban)(ban)(ban)合(he)(he)料,這(zhe)樣(yang)(yang)可以使(shi)操(cao)作人員能(neng)盡快熟悉泵(beng)機(ji)的(de)(de)性(xing)(xing)(xing)能(neng)。細(xi)粉料含0.25mm以下(xia)(xia)的(de)(de)細(xi)粉料及水(shui)泥,總重量(liang)必須達(da)到(dao)400KG每立(li)方米(mi),這(zhe)樣(yang)(yang)的(de)(de)配置的(de)(de)砼(tong)拌(ban)(ban)(ban)(ban)合(he)(he)料即使(shi)含有碎石,一般也(ye)容易泵(beng)送(song)(song)(song)出去。請記住(zhu),在(zai)泵(beng)送(song)(song)(song)混(hun)凝土(tu)(tu)之前(qian)應先泵(beng)0.5-0.8每立(li)方米(mi)水(shui)泥砂漿。砼(tong)拌(ban)(ban)(ban)(ban)合(he)(he)物(wu)是由多種成分組成,合(he)(he)理(li)的(de)(de)選擇砼(tong)的(de)(de)配比(bi)是獲(huo)得(de)良好(hao)的(de)(de)泵(beng)送(song)(song)(song)性(xing)(xing)(xing)能(neng)的(de)(de)關鍵。
砼拌合料的可泵(beng)性主要取決(jue)于三個重要因素(su):
1.骨料的(de)構(gou)成和骨料的(de)級配。
2.細粉料(liao)(liao)的(de)含量,就是(shi)料(liao)(liao)的(de)直徑(jing)為0.25mm以下的(de)物料(liao)(liao)包括水泥和(he)天然(ran)超細粉料(liao)(liao)的(de)含量,
3.水灰和(he)坍塌度。這三(san)個(ge)因素是(shi)互相關(guan)聯的(de)(de)(de)密不(bu)可(ke)分。骨(gu)(gu)(gu)(gu)(gu)料(liao)的(de)(de)(de)等級配備(bei),骨(gu)(gu)(gu)(gu)(gu)料(liao)的(de)(de)(de)最(zui)大(da)(da)的(de)(de)(de)顆粒徑(jing)(jing)是(shi)受輸(shu)送(song)管的(de)(de)(de)限制,卵(luan)(luan)(luan)石(shi)骨(gu)(gu)(gu)(gu)(gu)料(liao)最(zui)大(da)(da)顆粒徑(jing)(jing)不(bu)超(chao)(chao)過(guo)管徑(jing)(jing)的(de)(de)(de)三(san)分之一,碎石(shi)最(zui)大(da)(da)的(de)(de)(de)粒徑(jing)(jing)不(bu)超(chao)(chao)過(guo)管徑(jing)(jing)的(de)(de)(de)四分之一,內徑(jing)(jing)125mm的(de)(de)(de)輸(shu)送(song)管允(yun)許通過(guo)最(zui)大(da)(da)骨(gu)(gu)(gu)(gu)(gu)料(liao)粒徑(jing)(jing)為45mm卵(luan)(luan)(luan)石(shi)。碎石(shi)為30mm。骨(gu)(gu)(gu)(gu)(gu)料(liao)按料(liao)徑(jing)(jing)可(ke)分為粗骨(gu)(gu)(gu)(gu)(gu)料(liao)和(he)細骨(gu)(gu)(gu)(gu)(gu)料(liao)兩種。粗骨(gu)(gu)(gu)(gu)(gu)料(liao)的(de)(de)(de)形狀(zhuang)有卵(luan)(luan)(luan)石(shi),碎石(shi)等,卵(luan)(luan)(luan)石(shi)骨(gu)(gu)(gu)(gu)(gu)料(liao)可(ke)泵性好,碎石(shi)骨(gu)(gu)(gu)(gu)(gu)料(liao)可(ke)泵性差一點。泵送(song)砼的(de)(de)(de)要求(qiu)粗骨(gu)(gu)(gu)(gu)(gu)料(liao)的(de)(de)(de)空隙(xi)進(jin)可(ke)能小,其(qi)級配應接連而均勻(yun),才能以較小的(de)(de)(de)水泥用量(liang),及較低的(de)(de)(de)沙率獲(huo)得較好的(de)(de)(de)可(ke)泵性