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建筑用砂領域

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風化砂

發布時間:2018-11-22 16:22:15    瀏覽(lan)次數:5880次

風(feng)(feng)(feng)化(hua)(hua)砂(sha)是地(di)表(biao)巖(yan)層風(feng)(feng)(feng)化(hua)(hua)過程的(de)(de)中(zhong)間產物,其耐久性(xing)較一(yi)般土料(liao)差(cha),物理力學性(xing)質較不穩定。風(feng)(feng)(feng)化(hua)(hua)砂(sha)的(de)(de)特征是顆粒(li)(li)呈棱(leng)角狀,強(qiang)度較弱,大(da)小分布不均勻性(xing)較大(da),并含有(you)一(yi)量的(de)(de)細土粒(li)(li)。風(feng)(feng)(feng)化(hua)(hua)砂(sha)產地(di):白蓮河(細粒(li)(li)花崗(gang)巖(yan)),鴨河口(花崗(gang)片麻,閃(shan)長片麻巖(yan)),大(da)伙(huo)房(花崗(gang)巖(yan),花崗(gang)片麻石),三(san)峽(黑云母石英閃(shan)長巖(yan)),九松山(角閃(shan)花崗(gang)片麻巖(yan)),蘭崗(gang)(砂(sha)巖(yan))。調查證明(ming),少林寺(si)至洛(luo)陽高速公路(lu)沿線有(you)大(da)量風(feng)(feng)(feng)化(hua)(hua)砂(sha)現象,對風(feng)(feng)(feng)化(hua)(hua)砂(sha)的(de)(de)物理力學性(xing)質和水(shui)泥(ni)(ni)穩定風(feng)(feng)(feng)化(hua)(hua)砂(sha)的(de)(de)各種路(lu)用(yong)性(xing)能進行了試驗(yan)研究,結果表(biao)明(ming),水(shui)泥(ni)(ni)穩定風(feng)(feng)(feng)化(hua)(hua)砂(sha)具(ju)有(you)良好的(de)(de)力學性(xing)能,應(ying)用(yong)前景廣闊。

風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)處(chu)理方法,是將采掘來的(de)(de)(de)(de)(de)風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)進(jin)(jin)行(xing)破(po)碎(sui)(sui)(sui)處(chu)理,使密實度差的(de)(de)(de)(de)(de)風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)在激振力作用下粉(fen)碎(sui)(sui)(sui)變(bian)細;然(ran)后進(jin)(jin)行(xing)水洗(xi),洗(xi)去砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)中微(wei)量的(de)(de)(de)(de)(de)石粉(fen)和雜質,降低(di)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)中含(han)泥率,凈化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)子(zi)(zi)礫石含(han)量,最后得到符合(he)建筑要(yao)求(qiu)的(de)(de)(de)(de)(de)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)料(liao)(liao)(liao)(liao)。以資源(yuan)豐富的(de)(de)(de)(de)(de)風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)為原(yuan)料(liao)(liao)(liao)(liao),具有取料(liao)(liao)(liao)(liao)方便(bian),成(cheng)本(ben)低(di)廉,變(bian)廢(fei)為寶,工藝合(he)理,技術可行(xing)的(de)(de)(de)(de)(de)特點(dian)。風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)生(sheng)產線主要(yao)由顎式破(po)碎(sui)(sui)(sui)機(ji),風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)機(ji)(風(feng)化(hua)石制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)機(ji)),振動(dong)篩,洗(xi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)機(ji)以及皮帶輸(shu)送(song)機(ji)構(gou)成(cheng)。風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)生(sheng)產線流(liu)程:首先巖(yan)石由粗碎(sui)(sui)(sui)顎破(po)進(jin)(jin)行(xing)初步破(po)碎(sui)(sui)(sui),然(ran)后生(sheng)成(cheng)的(de)(de)(de)(de)(de)粗料(liao)(liao)(liao)(liao)由皮帶輸(shu)送(song)機(ji)輸(shu)送(song)至細碎(sui)(sui)(sui)鄂破(po)進(jin)(jin)行(xing)破(po)碎(sui)(sui)(sui),細碎(sui)(sui)(sui)后的(de)(de)(de)(de)(de)石料(liao)(liao)(liao)(liao)進(jin)(jin)振動(dong)篩篩分(fen)(fen)出兩種物料(liao)(liao)(liao)(liao),滿足制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)機(ji)進(jin)(jin)料(liao)(liao)(liao)(liao)粒度的(de)(de)(de)(de)(de)石料(liao)(liao)(liao)(liao)進(jin)(jin)入制(zhi)(zhi)(zhi)(zhi)沙機(ji)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha),另一部分(fen)(fen)返(fan)料(liao)(liao)(liao)(liao)進(jin)(jin)細破(po)再度破(po)碎(sui)(sui)(sui)。進(jin)(jin)入制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)機(ji)的(de)(de)(de)(de)(de)石子(zi)(zi)一部分(fen)(fen)制(zhi)(zhi)(zhi)(zhi)成(cheng)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha),經洗(xi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)機(ji)清(qing)洗(xi)后制(zhi)(zhi)(zhi)(zhi)成(cheng)成(cheng)品(pin)風(feng)化(hua)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha),另一部分(fen)(fen)進(jin)(jin)制(zhi)(zhi)(zhi)(zhi)砂(sha)(sha)(sha)(sha)(sha)(sha)(sha)(sha)機(ji)再次(ci)破(po)碎(sui)(sui)(sui)。

風(feng)化砂多(duo)系花崗片(pian)麻巖(yan)和(he)閃長片(pian)麻巖(yan),這(zhe)種強風(feng)化的片(pian)麻巖(yan)經爆炸挖松及轉(zhuan)運(yun)后,就變成(cheng)松散的風(feng)化石(shi)渣或石(shi)沫(mo)。風(feng)化砂具(ju)有很強的抗水(shui)性,可以作(zuo)(zuo)為建筑用(yong)砂。風(feng)化砂的固(gu)結(jie)也較快,可以作(zuo)(zuo)為良好(hao)的透(tou)(tou)水(shui)料(liao)或半透(tou)(tou)水(shui)料(liao)。


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