自2009年開始(shi)研發5D系(xi)列佳(jia)密克(ke)絲®（Dramix®）鋼纖維產品以來，貝卡爾特已經在歐美市(shi)場完成了約(yue)50萬平(ping)米的5D系(xi)列佳(jia)密克(ke)絲®（Dramix®）鋼纖維樁承地(di)(di)坪項目(mu)，其中(zhong)包(bao)括日(ri)產、樂購、奔馳(chi)等(deng)企業的地(di)(di)坪項目(mu)。2015年年底，在中(zhong)國相當有規(gui)(gui)模的某零(ling)售連鎖企業中(zhong)山(shan)物(wu)流配送中(zhong)心完成的5D佳(jia)密克(ke)絲®（Dramix®）鋼纖維混(hun)凝土樁承地(di)(di)坪項目(mu)建筑面積(ji)約(yue)兩萬平(ping)米，用一個月時間即完成了施(shi)工，比傳統鋼筋方案縮短了約(yue)30%的施(shi)工時間。鋼纖維轉換梁保養時避(bi)免接觸風、太陽、雨水等(deng)，應(ying)對(dui)施(shi)工梁體(ti)進行擋風、防雨等(deng)封閉處理。江蘇(su)鋼纖維地(di)(di)坪厚(hou)度規(gui)(gui)范要求(qiu)

鋼纖維(wei)(wei)(wei)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)地(di)坪(ping)(ping)(ping)施(shi)工(gong)中應該(gai)注意的(de)事項一(yi)、鋼纖維(wei)(wei)(wei)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)地(di)坪(ping)(ping)(ping)分(fen)(fen)(fen)格縫(feng)(feng)(feng)1.對(dui)于(yu)大面(mian)(mian)(mian)積鋼纖維(wei)(wei)(wei)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)地(di)坪(ping)(ping)(ping)施(shi)工(gong)，分(fen)(fen)(fen)格縫(feng)(feng)(feng)設(she)置間距(ju)可以適(shi)當加大，比較(jiao)大可達12m，遠遠高于(yu)普(pu)通混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)地(di)坪(ping)(ping)(ping)。2.混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)地(di)坪(ping)(ping)(ping)分(fen)(fen)(fen)格縫(feng)(feng)(feng)接縫(feng)(feng)(feng)時(shi)，對(dui)于(yu)先施(shi)工(gong)板塊接縫(feng)(feng)(feng)處應用(yong)切割機將(jiang)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)側面(mian)(mian)(mian)切割整齊，保(bao)證分(fen)(fen)(fen)格縫(feng)(feng)(feng)接縫(feng)(feng)(feng)材(cai)料緊貼混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)面(mian)(mian)(mian)，從而確保(bao)分(fen)(fen)(fen)格縫(feng)(feng)(feng)順直。二、鋼纖維(wei)(wei)(wei)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)地(di)坪(ping)(ping)(ping)抹面(mian)(mian)(mian)鋼纖維(wei)(wei)(wei)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)地(di)坪(ping)(ping)(ping)抹面(mian)(mian)(mian)時(shi)，不(bu)管(guan)是采用(yong)機械還是人工(gong)抹面(mian)(mian)(mian)，都要(yao)對(dui)少量露(lu)在外面(mian)(mian)(mian)的(de)鋼纖維(wei)(wei)(wei)進行處理，否則將(jiang)影響地(di)坪(ping)(ping)(ping)美觀和使用(yong)。通常是將(jiang)面(mian)(mian)(mian)上1cm以內水平的(de)鋼纖維(wei)(wei)(wei)剔除，豎(shu)向的(de)鋼纖維(wei)(wei)(wei)將(jiang)其端部(bu)彎入混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)中。上海鋼纖維(wei)(wei)(wei)地(di)坪(ping)(ping)(ping)有(you)什么好(hao)處鋼纖維(wei)(wei)(wei)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)的(de)抗剪性較(jiao)高 即使鋼纖維(wei)(wei)(wei)混凝(ning)(ning)(ning)(ning)(ning)(ning)土(tu)(tu)(tu)(tu)的(de)基體發(fa)生(sheng)變(bian)化，但是它的(de)荷載(zai)能力是不(bu)會變(bian)的(de)。

鋼纖(xian)(xian)維(wei)(wei)(wei)是指以切(qie)斷(duan)細鋼絲法、冷軋鋼帶(dai)剪切(qie)、鋼錠銑削(xue)或鋼水快(kuai)速(su)冷凝(ning)法制(zhi)成長徑(jing)(jing)比（纖(xian)(xian)維(wei)(wei)(wei)長度與其直(zhi)徑(jing)(jing)的(de)(de)(de)比值，當纖(xian)(xian)維(wei)(wei)(wei)截(jie)(jie)面為(wei)非圓形時，采用(yong)換算等效(xiao)截(jie)(jie)面圓面積的(de)(de)(de)直(zhi)徑(jing)(jing)）為(wei)40～80的(de)(de)(de)纖(xian)(xian)維(wei)(wei)(wei)。不(bu)同的(de)(de)(de)制(zhi)取方(fang)式產出的(de)(de)(de)鋼纖(xian)(xian)維(wei)(wei)(wei)性能(neng)也(ye)不(bu)一(yi)樣(yang)。雖然鋼纖(xian)(xian)維(wei)(wei)(wei)問世不(bu)久，但應用(yong)已經越(yue)來(lai)越(yue)廣，種(zhong)類也(ye)越(yue)來(lai)越(yue)多。就(jiu)目前占(zhan)市場(chang)份額較(jiao)(jiao)高，比較(jiao)(jiao)有競爭力品牌鋼纖(xian)(xian)維(wei)(wei)(wei)如：西卡(ka)、佳密(mi)克絲均(jun)采用(yong)切(qie)斷(duan)細鋼絲法。2鋼纖(xian)(xian)維(wei)(wei)(wei)混(hun)(hun)凝(ning)土是在普通混(hun)(hun)凝(ning)土中摻(chan)入亂(luan)向(xiang)分布(bu)的(de)(de)(de)短鋼纖(xian)(xian)維(wei)(wei)(wei)所形成的(de)(de)(de)一(yi)種(zhong)新型的(de)(de)(de)多相(xiang)復合材料(liao)。這些(xie)亂(luan)向(xiang)分布(bu)的(de)(de)(de)鋼纖(xian)(xian)維(wei)(wei)(wei)能(neng)夠有效(xiao)地阻(zu)礙(ai)混(hun)(hun)凝(ning)土內部微裂(lie)縫的(de)(de)(de)擴展及(ji)宏觀裂(lie)縫的(de)(de)(de)形成，改善了混(hun)(hun)凝(ning)土的(de)(de)(de)抗拉(la)、抗彎、抗沖擊及(ji)抗疲勞性能(neng)，具(ju)有較(jiao)(jiao)好的(de)(de)(de)延性。

鋼(gang)纖(xian)(xian)(xian)(xian)(xian)維地(di)坪(ping)(ping)優(you)勢佳密(mi)克絲(si)(si)（Dramix®）鋼(gang)纖(xian)(xian)(xian)(xian)(xian)維對(dui)混(hun)凝土(tu)增強(qiang)作(zuo)用(yong)(yong)巨(ju)大。鋼(gang)纖(xian)(xian)(xian)(xian)(xian)維由(you)水溶(rong)性(xing)膠(jiao)粘(zhan)結(jie)成排，經過(guo)二次(ci)分散避免了(le)混(hun)凝土(tu)結(jie)團，從而(er)使佳密(mi)克絲(si)(si)（Dramix®）鋼(gang)纖(xian)(xian)(xian)(xian)(xian)維均勻的(de)分布于混(hun)凝土(tu)中(zhong)，確保加固(gu)面面俱到(dao)(dao)，沒有死角。佳密(mi)克絲(si)(si)（Dramix®）的(de)高長徑比確保纖(xian)(xian)(xian)(xian)(xian)維在(zai)(zai)混(hun)凝土(tu)中(zhong)形成密(mi)集且均勻的(de)增強(qiang)網絡。鋼(gang)纖(xian)(xian)(xian)(xian)(xian)維適(shi)(shi)用(yong)(yong)于任何類型(xing)的(de)地(di)坪(ping)(ping)所有的(de)混(hun)凝土(tu)地(di)坪(ping)(ping)都(dou)是一個獨特的(de)工(gong)程(cheng)，如無縫地(di)坪(ping)(ping)，切縫地(di)坪(ping)(ping)，樁承地(di)坪(ping)(ping)，輕(qing)荷載地(di)坪(ping)(ping)，防滲(shen)地(di)坪(ping)(ping)等(deng)(deng)(deng)等(deng)(deng)(deng)。所有這些地(di)坪(ping)(ping)都(dou)可以用(yong)(yong)佳密(mi)克絲(si)(si)（Dramix®）鋼(gang)纖(xian)(xian)(xian)(xian)(xian)維來加固(gu)。我(wo)們專(zhuan)業的(de)工(gong)程(cheng)師會(hui)幫(bang)您選擇合適(shi)(shi)的(de)纖(xian)(xian)(xian)(xian)(xian)維型(xing)號及(ji)合適(shi)(shi)的(de)摻量(liang)。在(zai)(zai)通(tong)常的(de)纖(xian)(xian)(xian)(xian)(xian)維摻量(liang)下，沖擊(ji)抗壓韌性(xing)可提高2～7倍，沖擊(ji)抗彎、抗拉等(deng)(deng)(deng)韌性(xing)可提高幾倍到(dao)(dao)幾十倍。

1)鋼(gang)纖(xian)(xian)維(wei)(wei)混(hun)凝(ning)土的(de)(de)抗(kang)(kang)壓強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)、抗(kang)(kang)折(zhe)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)和(he)(he)劈拉(la)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)均隨鋼(gang)纖(xian)(xian)維(wei)(wei)體(ti)積(ji)摻(chan)(chan)(chan)量(liang)的(de)(de)增(zeng)加(jia)而增(zeng)加(jia),當鋼(gang)纖(xian)(xian)維(wei)(wei)體(ti)積(ji)摻(chan)(chan)(chan)量(liang)較低(di)時(shi),強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)增(zeng)長(chang)幅度(du)(du)(du)(du)一(yi)般不(bu)(bu)大,尤(you)其抗(kang)(kang)壓強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)。2)鋼(gang)纖(xian)(xian)維(wei)(wei)混(hun)凝(ning)土的(de)(de)抗(kang)(kang)壓強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)、抗(kang)(kang)折(zhe)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)和(he)(he)劈拉(la)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)均隨養護齡期的(de)(de)增(zeng)長(chang)而增(zeng)長(chang)。當鋼(gang)纖(xian)(xian)維(wei)(wei)體(ti)積(ji)摻(chan)(chan)(chan)量(liang)為1.2%時(shi),1d的(de)(de)抗(kang)(kang)壓強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)、抗(kang)(kang)折(zhe)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)和(he)(he)劈拉(la)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)已分(fen)別達28d強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)的(de)(de)73.9%、90.9%和(he)(he)91.2%,充分(fen)體(ti)現(xian)了(le)該種(zhong)鋼(gang)纖(xian)(xian)維(wei)(wei)混(hun)凝(ning)土早強(qiang)(qiang)(qiang)(qiang)(qiang)的(de)(de)優良(liang)特(te)性(xing),非常適(shi)宜用(yong)(yong)于機(ji)場道(dao)面裂縫(feng)快速修補(bu)。3)為了(le)既滿足(zu)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)要求又經濟適(shi)用(yong)(yong),建議選用(yong)(yong)0.8%～1.2%體(ti)積(ji)摻(chan)(chan)(chan)量(liang)的(de)(de)鋼(gang)纖(xian)(xian)維(wei)(wei)混(hun)凝(ning)土。4)抗(kang)(kang)壓強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)與抗(kang)(kang)折(zhe)強(qiang)(qiang)(qiang)(qiang)(qiang)度(du)(du)(du)(du)有很好的(de)(de)相關性(xing),可(ke)根據本試(shi)驗回歸方程式進行換算(suan),或直接參照表7。5)經現(xian)場試(shi)驗,實際效果較好。鋼(gang)纖(xian)(xian)維(wei)(wei)混(hun)凝(ning)土地(di)坪抹(mo)(mo)面時(shi)，不(bu)(bu)管(guan)是采用(yong)(yong)機(ji)械還是人工抹(mo)(mo)面，否則(ze)將影響地(di)坪美觀和(he)(he)使用(yong)(yong)。上海鋼(gang)纖(xian)(xian)維(wei)(wei)地(di)坪有什(shen)么好處

鋼(gang)(gang)纖(xian)維混凝土(tu)硬化(hua)劑地坪(ping)在大(da)面(mian)積(ji)施工時，關鍵應防止地坪(ping)表面(mian)開(kai)裂(lie)及控(kong)制好(hao)平整度(du)。江蘇(su)鋼(gang)(gang)纖(xian)維地坪(ping)厚度(du)規(gui)范要求

1.鋼纖(xian)維(wei)混(hun)(hun)凝(ning)(ning)土的收(shou)(shou)(shou)光(1)混(hun)(hun)凝(ning)(ning)土澆(jiao)筑振(zhen)搗后(hou)，靜置(zhi)4h左右達到初凝(ning)(ning)狀(zhuang)態，可(ke)腳踩表面腳印下(xia)(xia)沉約5mm時即可(ke)。(2)使用機(ji)械進行(xing)(xing)原(yuan)漿收(shou)(shou)(shou)光壓(ya)實(shi)，用抹(mo)光機(ji)粗抹(mo)壓(ya)2遍(bian)進行(xing)(xing)原(yuan)漿收(shou)(shou)(shou)光壓(ya)實(shi)。(3)采(cai)用抹(mo)光機(ji)反(fan)復多次抹(mo)光壓(ya)實(shi)，待混(hun)(hun)凝(ning)(ning)土表面無水分后(hou)，再進行(xing)(xing)下(xia)(xia)一遍(bian)收(shou)(shou)(shou)光。(4)若遇局部凹凸不(bu)平(ping)(ping)整(zheng)(zheng)，應(ying)立即人工補漿抹(mo)平(ping)(ping)，再進行(xing)(xing)機(ji)械收(shou)(shou)(shou)光抹(mo)壓(ya)。(5)混(hun)(hun)凝(ning)(ning)土收(shou)(shou)(shou)面應(ying)提出原(yuan)漿后(hou)結(jie)束(shu)，且收(shou)(shou)(shou)面工作應(ying)控制在混(hun)(hun)凝(ning)(ning)土初凝(ning)(ning)后(hou)不(bu)久完成。(6)復核混(hun)(hun)凝(ning)(ning)土表面平(ping)(ping)整(zheng)(zheng)度，用2m靠尺進行(xing)(xing)檢(jian)查，以保(bao)證面層的平(ping)(ping)整(zheng)(zheng)度，不(bu)滿足規(gui)范(fan)要求的地方，需(xu)用人工修補抹(mo)平(ping)(ping)。2.地坪面層硬化劑混(hun)(hun)凝(ning)(ning)士表面收(shou)(shou)(shou)光后(hou)，設專人涂(tu)刷(shua)面層硬化劑，需(xu)橫豎(shu)涂(tu)刷(shua)2遍(bian)，邊角需(xu)特殊處理。江(jiang)蘇鋼纖(xian)維(wei)地坪厚度規(gui)范(fan)要求

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