第1期 申愛琴等(deng)：高寒山(shan)區C40機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)耐久性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng) 1 17 1．2．2 試(shi)(shi)(shi)驗方法與(yu)(yu)(yu)條件 采(cai)用(yong)(yong)(yong)快速凍(dong)融(rong)法對(dui)C40機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)(de)抗凍(dong) 性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)進行(xing)研究(jiu)(jiu)．儀器(qi)為KDR V3混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)快速凍(dong)融(rong)試(shi)(shi)(shi),摘要(yao)： 現(xian)行(xing)標(biao)準(zhun)對(dui)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)石粉(fen)(fen)含量的(de)(de)(de)(de)(de)限值存在(zai)爭議,同(tong)時也制(zhi)(zhi)(zhi)約了(le)(le)(le)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)應用(yong)(yong)(yong)和(he)(he)(he)石粉(fen)(fen)的(de)(de)(de)(de)(de)合(he)理利用(yong)(yong)(yong)。本文在(zai)分析測(ce)試(shi)(shi)(shi)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)與(yu)(yu)(yu)石粉(fen)(fen)特性(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)基(ji)礎(chu)(chu)上研究(jiu)(jiu)了(le)(le)(le)石粉(fen)(fen)對(dui)水(shui)泥性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)和(he)(he)(he)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)的(de)(de)(de)(de)(de)影(ying)響(xiang)(xiang)規律,探討了(le)(le)(le)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)用(yong)(yong)(yong)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)石粉(fen)(fen)含量的(de)(de)(de)(de)(de)限值,提(ti)出了(le)(le)(le)含石粉(fen)(fen)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)配(pei)制(zhi)(zhi)(zhi)特點(dian)與(yu)(yu)(yu)配(pei)合(he)比設(she)計原理,分析了(le)(le)(le) ...本文根據該報告(gao)稍作修(xiu)改(未公開(kai)發表過),內容(rong)涉及機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)顆(ke)粒(li)(li)形狀與(yu)(yu)(yu)粒(li)(li)徑分布、堅固性(xing)(xing)(xing)(xing)(xing)(xing)(xing)與(yu)(yu)(yu)壓碎指標(biao),機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)拌(ban)合(he)物(wu)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)、力學性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)、抗凍(dong)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)與(yu)(yu)(yu)收縮,并比較了(le)(le)(le)不同(tong)的(de)(de)(de)(de)(de)破碎方式對(dui)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)顆(ke)粒(li)(li)形狀、混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)拌(ban)合(he)物(wu)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)和(he)(he)(he)力學性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)的(de)(de)(de)(de)(de)影(ying)響(xiang)(xiang),供機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)應用(yong)(yong)(yong)和(he)(he)(he)研究(jiu)(jiu)者2. 1 石粉(fen)(fen)對(dui)鐵路機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)施(shi)工拌(ban)合(he)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)影(ying)響(xiang)(xiang) 本試(shi)(shi)(shi)驗中(zhong),C50 河砂(sha)(sha)(sha)(sha)(sha)高性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)坍落度(du)為 221mm,擴展(zhan)度(du)為 516mm,和(he)(he)(he)易(yi)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)良(liang)好,無泌水(shui)現(xian)象。C50 機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)高性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)施(shi)工拌(ban)合(he)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)隨(sui)石粉(fen)(fen)含量的(de)(de)(de)(de)(de)變化(hua)如圖 2 所(suo)示。隨(sui)著(zhu)基(ji)礎(chu)(chu)設(she)施(shi)建(jian)設(she)的(de)(de)(de)(de)(de)快速發展(zhan)和(he)(he)(he)環境保護的(de)(de)(de)(de)(de)加(jia)強(qiang),河砂(sha)(sha)(sha)(sha)(sha)資(zi)源(yuan)越來越匱乏,機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)在(zai)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)中(zhong)的(de)(de)(de)(de)(de)應用(yong)(yong)(yong)越來越多(duo)(duo)。由于機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)在(zai)粒(li)(li)形、級配(pei)、石粉(fen)(fen)含量等(deng)方面與(yu)(yu)(yu)河砂(sha)(sha)(sha)(sha)(sha)存在(zai)顯著(zhu)差異,機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)與(yu)(yu)(yu)河砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)存在(zai)很多(duo)(duo)不同(tong),其中(zhong)工作性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)的(de)(de)(de)(de)(de)差2、機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)石粉(fen)(fen)含量對(dui)水(shui)泥拌(ban)合(he)物(wu)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)(neng)的(de)(de)(de)(de)(de)影(ying)響(xiang)(xiang)。 通過水(shui)泥的(de)(de)(de)(de)(de)試(shi)(shi)(shi)驗、砂(sha)(sha)(sha)(sha)(sha)漿試(shi)(shi)(shi)驗、混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)試(shi)(shi)(shi)驗,用(yong)(yong)(yong)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)配(pei)制(zhi)(zhi)(zhi)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)與(yu)(yu)(yu)天然引砂(sha)(sha)(sha)(sha)(sha)無大的(de)(de)(de)(de)(de)區別(bie)。 一般來講,同(tong)坍落度(du)的(de)(de)(de)(de)(de)前提(ti)下,機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)用(yong)(yong)(yong)水(shui)量要(yao)稍大些,但(dan)要(yao)根據施(shi)工條件及結構物(wu)和(he)(he)(he)運輸(shu)等(deng)因素考(kao)慮。但(dan)對(dui)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)(de)強(qiang)度(du)基(ji)本不變；用(yong)(yong)(yong)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)配(pei)制(zhi)(zhi)(zhi)泵送(song)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)(ning)土(tu)(tu)等(deng) ...

所(suo)以使(shi)用機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)已勢在必行,但(dan)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)與天(tian)然(ran)在形成過程(cheng)中(zhong)(zhong)上以及(ji)本(ben)(ben)身(shen)形態有(you)(you)著明(ming)顯(xian)的(de)(de)(de)差異,所(suo)以研(yan)究(jiu)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)對(dui)(dui)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)性(xing)(xing)(xing)(xing)能(neng)(neng) 影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang)有(you)(you)著重要的(de)(de)(de)價值意義和環(huan)境(jing)意義。 【作(zuo)者單位】： 東莞市港創建材(cai)有(you)(you)限公(gong)(gong)司(si); 【分(fen)類號】：TU528 下(xia)(xia)(xia)載(zai)全文(wen) 更多同(tong)(tong)類 ,機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)、石(shi)(shi)粉含(han)量(liang)(liang)對(dui)(dui)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)性(xing)(xing)(xing)(xing)能(neng)(neng)的(de)(de)(de)影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang) 趙德雄(xiong) 摘要：通過對(dui)(dui)C30機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)泵送混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)中(zhong)(zhong)不(bu)同(tong)(tong)砂(sha)(sha)(sha)(sha)(sha)率(lv)、不(bu)同(tong)(tong)石(shi)(shi)粉含(han)量(liang)(liang)試(shi)驗(yan),研(yan)究(jiu)了(le)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)對(dui)(dui)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)的(de)(de)(de)和易性(xing)(xing)(xing)(xing)、抗壓強(qiang)度的(de)(de)(de)影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang)。經(jing)驗(yan)與技術(shu) 機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)材(cai)質對(dui)(dui)干混(hun)(hun)(hun)(hun)砂(sha)(sha)(sha)(sha)(sha)漿(jiang)性(xing)(xing)(xing)(xing)能(neng)(neng)影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang)的(de)(de)(de)研(yan)究(jiu) 文(wen)/ 摘要：研(yan)究(jiu)了(le)不(bu)同(tong)(tong)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)對(dui)(dui)砂(sha)(sha)(sha)(sha)(sha)漿(jiang)硬(ying)化前和硬(ying)化后性(xing)(xing)(xing)(xing)能(neng)(neng)的(de)(de)(de)影(ying)(ying)(ying)(ying)(ying) 響(xiang)(xiang)。試(shi)驗(yan)結果(guo)表明(ming)石(shi)(shi)灰石(shi)(shi)增(zeng)(zeng)大的(de)(de)(de)砂(sha)(sha)(sha)(sha)(sha)漿(jiang)的(de)(de)(de)稠度,卵石(shi)(shi)和廢(fei)棄混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu) 依次降低,分(fen)層度恰(qia)好(hao)相反；對(dui)(dui)于硬(ying)化后的(de)(de)(de)性(xing)(xing)(xing)(xing)能(neng)(neng),廢(fei)棄混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)機(ji)(ji) 制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)配制(zhi)(zhi)(zhi)(zhi)出的(de)(de)(de)砂(sha)(sha)(sha)(sha)(sha)漿(jiang)的(de)(de)(de)抗壓強(qiang)度最小,卵石(shi)(shi)和石(shi)(shi)灰石(shi)(shi) ...石(shi)(shi)粉對(dui)(dui)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)性(xing)(xing)(xing)(xing)能(neng)(neng)的(de)(de)(de)影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang)及(ji)機(ji)(ji)理研(yan)究(jiu)（專(zhuan)業）材(cai)料(liao)學。聲明(ming)：知識水壩論文(wen)均為(wei)可編輯(ji)的(de)(de)(de)文(wen)本(ben)(ben)格(ge)(ge)式PDF,請放心下(xia)(xia)(xia)載(zai)使(shi)用。需要DOC格(ge)(ge)式請發豆丁站內信。機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)對(dui)(dui)砂(sha)(sha)(sha)(sha)(sha)漿(jiang)性(xing)(xing)(xing)(xing)能(neng)(neng) 有(you)(you)哪些影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang) 文(wen)件分(fen)類： 會員下(xia)(xia)(xia)載(zai) 文(wen)件描述： 本(ben)(ben)文(wen)研(yan)究(jiu)了(le)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)對(dui)(dui)砂(sha)(sha)(sha)(sha)(sha)漿(jiang)流動度、強(qiang)度、收(shou)縮率(lv)的(de)(de)(de)影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang)。結果(guo)表明(ming),摻(chan)(chan)(chan)(chan)入機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)后,新拌砂(sha)(sha)(sha)(sha)(sha)漿(jiang)的(de)(de)(de)流動度降低,且(qie)隨著機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)摻(chan)(chan)(chan)(chan)量(liang)(liang)的(de)(de)(de)增(zeng)(zeng)大而逐漸減小；在低機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)摻(chan)(chan)(chan)(chan)量(liang)(liang)（0~70%） 時 ...提(ti)供(gong)不(bu)同(tong)(tong)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)摻(chan)(chan)(chan)(chan)量(liang)(liang)對(dui)(dui)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)性(xing)(xing)(xing)(xing)能(neng)(neng)影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang)研(yan)究(jiu)文(wen)檔免費下(xia)(xia)(xia)載(zai),摘要:·1356·20158月中(zhong)(zhong)不(bu)同(tong)(tong)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)摻(chan)(chan)(chan)(chan)量(liang)(liang)對(dui)(dui)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)性(xing)(xing)(xing)(xing)能(neng)(neng)影(ying)(ying)(ying)(ying)(ying)響(xiang)(xiang)研(yan)究(jiu)劉和國(guo)周海波廖細雄(xiong)（湖南省宏尚檢測技術(shu)股(gu)份(fen)有(you)(you)限公(gong)(gong)司(si)）【摘要】為(wei)緩解相關地區工(gong)程(cheng)建設中(zhong)(zhong)遇到的(de)(de)(de)天(tian)然(ran)砂(sha)(sha)(sha)(sha)(sha)資源不(bu)足的(de)(de)(de)問題,研(yan)究(jiu)了(le)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)中(zhong)(zhong)不(bu)同(tong)(tong)機(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)摻(chan)(chan)(chan)(chan)量(liang)(liang)對(dui)(dui)混(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)土(tu)強(qiang)度及(ji)工(gong)作(zuo)性(xing)(xing)(xing)(xing)

機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)中石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)對(dui)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)性(xing)(xing)(xing)(xing)能(neng)(neng)的(de)(de)(de)(de)影響(xiang) 07:00 來(lai)源: 砼(tong)話 在(zai)(zai)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)生產過(guo)(guo)程(cheng)中不可(ke)(ke)避免(mian)地產生粒(li)徑小于 75μm顆粒(li),這些粉(fen)(fen)(fen)(fen)顆粒(li)既可(ke)(ke)能(neng)(neng)是石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)也可(ke)(ke)能(neng)(neng)是泥(ni)(ni)粉(fen)(fen)(fen)(fen)。石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)和(he)泥(ni)(ni)粉(fen)(fen)(fen)(fen)是兩(liang)種截然不同(tong)的(de)(de)(de)(de)物(wu)質(zhi),一方(fang)面石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)和(he)泥(ni)(ni)粉(fen)(fen)(fen)(fen)粒(li)徑都比較(jiao)小,在(zai)(zai)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)漿體(ti)中 ,機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)微觀(guan)結(jie)(jie)構(gou)148 6 1水(shui)(shui)(shui)(shui)(shui)(shui)化(hua)特性(xing)(xing)(xing)(xing)148 6 1 1水(shui)(shui)(shui)(shui)(shui)(shui)泥(ni)(ni)水(shui)(shui)(shui)(shui)(shui)(shui)化(hua)硬化(hua)機(ji)理(li)(li)148 6 1 2水(shui)(shui)(shui)(shui)(shui)(shui)泥(ni)(ni)水(shui)(shui)(shui)(shui)(shui)(shui)化(hua)過(guo)(guo)程(cheng)149 6 1 3水(shui)(shui)(shui)(shui)(shui)(shui)泥(ni)(ni)水(shui)(shui)(shui)(shui)(shui)(shui)化(hua)動力(li)學(xue)模型153 6 1 4機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)中石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)對(dui)水(shui)(shui)(shui)(shui)(shui)(shui)泥(ni)(ni)水(shui)(shui)(shui)(shui)(shui)(shui)化(hua)的(de)(de)(de)(de)影響(xiang)154 6 2孔(kong)結(jie)(jie)構(gou)特性(xing)(xing)(xing)(xing)156 6 2 1孔(kong)結(jie)(jie)構(gou)種類156 6 2 2孔(kong)結(jie)(jie)構(gou)與宏觀(guan)性(xing)(xing)(xing)(xing)能(neng)(neng)的(de)(de)(de)(de)關系(xi)156 6 2 3機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)中石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)對(dui)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)孔(kong)結(jie)(jie)構(gou)的(de)(de)(de)(de)影響(xiang)159 6 2 4利用(yong)(yong)熱(re)孔(kong)計法表(biao)征混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning) …采用(yong)(yong)高(gao)度(du)(du)集(ji)約的(de)(de)(de)(de)塔樓式(shi)全封(feng)閉布(bu)置,集(ji)高(gao)效制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)、粒(li)型優化(hua)、石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)控(kong)制(zhi)(zhi)(zhi)、級配調(diao)整、含(han)(han)水(shui)(shui)(shui)(shui)(shui)(shui)率控(kong)制(zhi)(zhi)(zhi)、環保處理(li)(li)于一體(ti),可(ke)(ke)實現機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)粒(li)型、級配、含(han)(han)粉(fen)(fen)(fen)(fen)量、細(xi)(xi)度(du)(du)模數等各項指標的(de)(de)(de)(de)優化(hua)和(he)調(diao)控(kong),使機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)可(ke)(ke)替代天然砂(sha)(sha)(sha)(sha)配制(zhi)(zhi)(zhi)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)和(he)砂(sha)(sha)(sha)(sha)漿,提(ti)高(gao)性(xing)(xing)(xing)(xing)能(neng)(neng),節(jie)省水(shui)(shui)(shui)(shui)(shui)(shui)泥(ni)(ni)和(he)外加劑。機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)和(he)特細(xi)(xi)砂(sha)(sha)(sha)(sha) 機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)顆粒(li)由于具(ju)有(you)棱角和(he)表(biao)面較(jiao)粗糙,因(yin)而(er)拌制(zhi)(zhi)(zhi)的(de)(de)(de)(de)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)和(he)易(yi)性(xing)(xing)(xing)(xing)較(jiao)差,可(ke)(ke)引起混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)較(jiao)大泌(mi)水(shui)(shui)(shui)(shui)(shui)(shui),但(dan)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)中通常含(han)(han)有(you)石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)可(ke)(ke)以部分改善混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)工(gong)(gong)作(zuo)性(xing)(xing)(xing)(xing)能(neng)(neng)、力(li)學(xue)性(xing)(xing)(xing)(xing)能(neng)(neng)和(he)耐久(jiu)性(xing)(xing)(xing)(xing)能(neng)(neng)。但(dan)石(shi)(shi)(shi)粉(fen)(fen)(fen)(fen)含(han)(han)量超過(guo)(guo)一定(ding)的(de)(de)(de)(de)值…(5)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)高(gao)性(xing)(xing)(xing)(xing)能(neng)(neng)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)施工(gong)(gong)應(ying)制(zhi)(zhi)(zhi)定(ding)嚴(yan)密的(de)(de)(de)(de)施工(gong)(gong)技(ji)術方(fang)案,并采取以下關鍵措施重(zhong)點(dian)保證質(zhi)量:結(jie)(jie)構(gou)表(biao)層(ceng)(ceng)混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)振搗密實與均勻性(xing)(xing)(xing)(xing)；混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)良好養護；混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)保護層(ceng)(ceng)厚度(du)(du)或鋼筋定(ding)位的(de)(de)(de)(de)準確性(xing)(xing)(xing)(xing)；混(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)裂縫控(kong)制(zhi)(zhi)(zhi)等。 5結(jie)(jie)束語 總之,機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)作(zuo)為(wei)一種重(zhong)要的(de)(de)(de)(de)建筑材料(liao)。在(zai)(zai)砂(sha)(sha)(sha)(sha)石(shi)(shi)(shi)告急,高(gao)品質(zhi)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)需求日益(yi)旺盛的(de)(de)(de)(de)情況下,如何提(ti)高(gao)機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)質(zhi)量成(cheng)了砂(sha)(sha)(sha)(sha)石(shi)(shi)(shi)行(xing)業關心的(de)(de)(de)(de)話題,機(ji)制(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)成(cheng)為(wei)建筑用(yong)(yong)砂(sha)(sha)(sha)(sha)的(de)(de)(de)(de)主流,但(dan)你知道影響(xiang)其 ...

因而(er)用(yong)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)配(pei)制(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)膠(jiao)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)力(li)學(xue)強(qiang)度(du)顯(xian)著高于天(tian)然(ran)(ran)砂(sha)(sha)(sha)(sha)(sha)(sha) 配(pei)制(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)膠(jiao)砂(sha)(sha)(sha)(sha)(sha)(sha)力(li)學(xue)強(qiang)度(du)。 從上述試驗(yan)結(jie)果(guo), 可以認(ren)為(wei)(wei)： 機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)性(xing)能(neng)優于天(tian)然(ran)(ran)砂(sha)(sha)(sha)(sha)(sha)(sha), 且(qie)使 用(yong)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)有成(cheng)本(ben)(ben)低(di)上的(de)(de)(de)(de)(de)優勢, 加之(zhi)社會及(ji)環境效益顯(xian)著,鐵(tie)路工程(cheng)(cheng)預(yu)(yu)應力(li)結(jie)構用(yong)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)混凝(ning)土(tu)性(xing)能(neng) 研(yan)(yan)究 王 振(zhen)1?2?韓自力(li)1?2?李化建1?2?黃法禮1?2?易忠(zhong)來(lai)1?2 (1.中國(guo)鐵(tie)道(dao)科學(xue)研(yan)(yan)究院集團(tuan)有限公(gong)司鐵(tie)道(dao)建筑(zhu)研(yan)(yan)究所?北京 100081?2.高速(su)鐵(tie)路軌道(dao)技術(shu)國(guo)家重點實驗(yan)室?北京 100081 ...1 前(qian)言：人工機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)是經機(ji)(ji)(ji)械破碎、篩(shai)(shai)分制(zhi)(zhi)(zhi)(zhi)(zhi)成(cheng)的(de)(de)(de)(de)(de)粒(li)經小于 4.75MM 的(de)(de)(de)(de)(de)巖石顆(ke)(ke)(ke)粒(li),其合理(li)(li)的(de)(de)(de)(de)(de)細度(du)模數(shu)與砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)級配(pei)直接(jie)影響預(yu)(yu)拌砂(sha)(sha)(sha)(sha)(sha)(sha)漿(jiang)(jiang)的(de)(de)(de)(de)(de)質(zhi)量(liang)(liang),既要(yao)確保預(yu)(yu)拌砂(sha)(sha)(sha)(sha)(sha)(sha)漿(jiang)(jiang)的(de)(de)(de)(de)(de)各項物理(li)(li)性(xing)能(neng)符合國(guo)家標準,又要(yao)滿足其施工性(xing)能(neng)符合現場施工要(yao)求,必須兩者(zhe)同時兼顧。 本(ben)(ben)文(wen)研(yan)(yan)究通過利用(yong)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)替代天(tian)然(ran)(ran)河(he)沙配(pei)制(zhi)(zhi)(zhi)(zhi)(zhi)抹灰(hui)砂(sha)(sha)(sha)(sha)(sha)(sha)漿(jiang)(jiang) ...阿里巴(ba)巴(ba)商(shang)友圈(quan),為(wei)(wei)您展示(shi)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)特性(xing)對混凝(ning)土(tu)性(xing)能(neng)機(ji)(ji)(ji)理(li)(li)研(yan)(yan)究 - 機(ji)(ji)(ji)械制(zhi)(zhi)(zhi)(zhi)(zhi)造,隨(sui)著基(ji)礎設施建設的(de)(de)(de)(de)(de)快速(su)發展和環境保護(hu)的(de)(de)(de)(de)(de)加強(qiang),天(tian)然(ran)(ran)砂(sha)(sha)(sha)(sha)(sha)(sha)資源(yuan)越(yue)(yue)來(lai)越(yue)(yue)匱乏,使用(yong)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)已成(cheng)為(wei)(wei)必然(ran)(ran)趨勢。但機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)在粒(li)形、級配(pei)、表(biao)面質(zhi)構以及(ji)0.075mm以下顆(ke)(ke)(ke)粒(li)含量(liang)(liang)等(deng)方面與天(tian)然(ran)(ran)砂(sha)(sha)(sha)(sha)(sha)(sha)存(cun)在顯(xian)著差(cha)異。機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)生(sheng)產(chan)線是將(jiang)開采來(lai)的(de)(de)(de)(de)(de)大塊石料（鵝卵(luan)石、河(he)卵(luan)石、花崗(gang)巖、大理(li)(li)石、玄武巖等(deng)）經過有序的(de)(de)(de)(de)(de)粗破、中碎、篩(shai)(shai)分、制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)、洗砂(sha)(sha)(sha)(sha)(sha)(sha)等(deng)環節(jie)處(chu)理(li)(li),制(zhi)(zhi)(zhi)(zhi)(zhi)成(cheng)基(ji)礎建設中需要(yao)的(de)(de)(de)(de)(de)優質(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)石骨料的(de)(de)(de)(de)(de)工藝(yi)流程(cheng)(cheng)。當前(qian)我國(guo)很多地(di)區(qu)在機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)生(sheng)產(chan)工作上依然(ran)(ran)存(cun)在顯(xian)著的(de)(de)(de)(de)(de)差(cha)異比較大且(qie)顆(ke)(ke)(ke)粒(li)級配(pei)不(bu)良等(deng)問(wen)題。本(ben)(ben)試驗(yan)通過使用(yong)兩種(zhong)不(bu)同顆(ke)(ke)(ke)粒(li)級配(pei)的(de)(de)(de)(de)(de)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)進(jin)行(xing)(xing)比較分析,對機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)顆(ke)(ke)(ke)粒(li)級配(pei)對預(yu)(yu)拌砂(sha)(sha)(sha)(sha)(sha)(sha)漿(jiang)(jiang)性(xing)能(neng)的(de)(de)(de)(de)(de)作用(yong)效果(guo)進(jin)行(xing)(xing)了相關探討。試驗(yan)的(de)(de)(de)(de)(de)結(jie)果(guo)如表(biao) 3 所示(shi)。

機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)對(dui)混(hun)凝(ning)(ning)土(tu)(tu)性(xing)(xing)能(neng)的(de)(de)(de)(de)(de)(de)影響 - 論機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)對(dui)混(hun)凝(ning)(ning)土(tu)(tu)性(xing)(xing)能(neng)的(de)(de)(de)(de)(de)(de)影響 面(mian)對(dui)天然(ran)砂(sha)(sha)(sha)(sha)(sha)(sha)價格不(bu)(bu)斷上漲(zhang)帶(dai)來(lai)的(de)(de)(de)(de)(de)(de)成本壓(ya)力,在資源(yuan)有(you)限和(he)環境(jing) 保護的(de)(de)(de)(de)(de)(de)雙重(zhong)因素下(xia),用(yong)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)作(zuo)為(wei)細集(ji)料將是(shi)今后(hou)混(hun)疑土(tu)(tu)工(gong)(gong)(gong)程發展的(de)(de)(de)(de)(de)(de) 主(zhu)要方向(xiang)。于(yu)是(shi)通(tong) …,近(jin)年(nian)(nian)來(lai),隨著天然(ran)砂(sha)(sha)(sha)(sha)(sha)(sha)資源(yuan)的(de)(de)(de)(de)(de)(de)迅速減少,機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)逐漸(jian)成為(wei)混(hun)凝(ning)(ning)土(tu)(tu)骨料的(de)(de)(de)(de)(de)(de)主(zhu)要來(lai)源(yuan)。但許(xu)多(duo)工(gong)(gong)(gong)程人員對(dui)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)缺乏(fa)了解,認為(wei)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)顆粒尖銳(rui),多(duo)棱角,表面(mian)粗糙,還(huan)含(han)有(you)一定量(liang)石粉,不(bu)(bu)適合應用(yong)于(yu)混(hun)凝(ning)(ning)土(tu)(tu)工(gong)(gong)(gong)程中。其實,機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)具有(you)許(xu)多(duo)優(you)(you)點,不(bu)(bu)僅物理力學(xue)(xue)性(xing)(xing)能(neng)好,還(huan)能(neng)根據(ju)工(gong)(gong)(gong)程需要調整顆粒級配(pei)、細度 ...高石粉含(han)量(liang)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)配(pei)制(zhi)(zhi)(zhi)(zhi)混(hun)凝(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)(de)(de)性(xing)(xing)能(neng)研究 周明凱1'8蔡基(ji)偉o"王稷良1t c李(li)北星2?a 1武漢(han)理工(gong)(gong)(gong)大(da)學(xue)(xue)中國湖北武漢(han)珞(luo)獅路122號。430070, 2武漢(han)大(da)學(xue)(xue) 中國湖北武漢(han)珞(luo)珈山,430072 8zhoumingkai＠1 63．COITI,bjcai＠mail．whut．edu．crl,Cjiliangwang＠163．COITI,8libx＠whu．edu．CFI 摘要：作(zuo)為(wei)天然(ran)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)(de)替代資源(yuan),機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)在 ...機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)(de)特點 1、堅固(gu)性(xing)(xing)與(yu)耐久(jiu)性(xing)(xing)試驗：機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)(de)堅固(gu)性(xing)(xing)能(neng)比河(he)砂(sha)(sha)(sha)(sha)(sha)(sha)稍差(cha),但仍(reng)然(ran)達(da)到GB/T 141684293標準的(de)(de)(de)(de)(de)(de)優(you)(you)等品(pin)指標,在普通(tong)混(hun)凝(ning)(ning)土(tu)(tu)中使(shi)用(yong)不(bu)(bu)存在問(wen)題。但在經(jing)(jing)常遭受摩(mo)擦沖擊的(de)(de)(de)(de)(de)(de)混(hun)凝(ning)(ning)土(tu)(tu)構件中使(shi)用(yong),除必須摻用(yong)外加劑,還(huan)應控制(zhi)(zhi)(zhi)(zhi)混(hun)凝(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)(de)(de)灰砂(sha)(sha)(sha)(sha)(sha)(sha)比和(he)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)(de)壓(ya)碎指標與(yu)石粉含(han)量(liang)。如(ru)果(guo)使(shi)用(yong)天然(ran)砂(sha)(sha)(sha)(sha)(sha)(sha)制(zhi)(zhi)(zhi)(zhi)作(zuo)混(hun)凝(ning)(ning)土(tu)(tu)產品(pin),性(xing)(xing)能(neng)改進的(de)(de)(de)(de)(de)(de)可能(neng)性(xing)(xing)會很小；而使(shi)用(yong)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha),性(xing)(xing)能(neng)上則有(you)更(geng)大(da)的(de)(de)(de)(de)(de)(de)調整空(kong)間,可以找到適合不(bu)(bu)同類(lei)型混(hun)凝(ning)(ning)土(tu)(tu)的(de)(de)(de)(de)(de)(de)配(pei)比。 還(huan)有(you)一大(da)障礙(ai),是(shi)對(dui)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)應用(yong)的(de)(de)(de)(de)(de)(de)接受程度。VU骨料優(you)(you)化系統(tong)是(shi)世邦工(gong)(gong)(gong)業(ye)在30多(duo)年(nian)(nian)的(de)(de)(de)(de)(de)(de)從業(ye)經(jing)(jing)驗基(ji)礎上,針(zhen)對(dui)建材(cai)產業(ye)對(dui)優(you)(you)質(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)需求(qiu)持續高漲(zhang)的(de)(de)(de)(de)(de)(de)現象,專門(men)根據(ju)混(hun)凝(ning)(ning)土(tu)(tu)和(he)砂(sha)(sha)(sha)(sha)(sha)(sha)漿用(yong)砂(sha)(sha)(sha)(sha)(sha)(sha)的(de)(de)(de)(de)(de)(de)性(xing)(xing)能(neng)需求(qiu),設立(li)專門(men)的(de)(de)(de)(de)(de)(de)骨料優(you)(you)化實驗區,耗時5年(nian)(nian),攻(gong)克制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)工(gong)(gong)(gong)藝(yi)中的(de)(de)(de)(de)(de)(de)破、磨、選等難題,而開發的(de)(de)(de)(de)(de)(de)優(you)(you)質(zhi)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)生產工(gong)(gong)(gong)藝(yi)方案(an)系統(tong)。