土(tu)工布(bu)和土(tu)工膜是不一(yi)樣的(de)，但是他(ta)們相(xiang)輔相(xiang)成的(de)混合在一(yi)起應(ying)用(yong)達(da)到工程(cheng)要求(qiu)．

  首(shou)先介紹下土(tu)工布：

     土工布是 規定的用于土建工程中的一種新型施工材料,由長絲或短纖維經過不同的設備和工藝鋪排成網狀，再經過針刺等工藝讓不同的纖維相互交織在一起，相互纏結固著使織物規格化，讓織物柔軟、、厚實、硬挺，以達到不同的厚度滿足使用要求，據用絲的長短分為長絲無紡土工布或短絲無紡土工布，長絲的抗拉強度高于短絲.纖維柔軟具有一定的抗撕裂能力.
     主要作用是：反濾、濾水、加固作用。規格從100克每平方米到800克每平方米。主要材質為滌綸纖維，具有優越的透水性、過濾性、耐用性變形適應能力，同時具有很好的平面排水能力
土工膜(mo)(mo)(mo)以(yi)塑料(liao)薄膜(mo)(mo)(mo)作為防(fang)(fang)(fang)滲(shen)基(ji)材，與無紡布(bu)(bu)復合(he)而(er)成的土工防(fang)(fang)(fang)滲(shen)材料(liao)，可分(fen)為兩(liang)一(yi)(yi)(yi)布(bu)(bu)一(yi)(yi)(yi)膜(mo)(mo)(mo)，一(yi)(yi)(yi)布(bu)(bu)一(yi)(yi)(yi)膜(mo)(mo)(mo)，它的防(fang)(fang)(fang)滲(shen)性(xing)能(neng)(neng)主要取決于塑料(liao)薄膜(mo)(mo)(mo)的防(fang)(fang)(fang)滲(shen)性(xing)能(neng)(neng)。土工膜(mo)(mo)(mo)是一(yi)(yi)(yi)種以(yi)高分(fen)子化學柔性(xing)材料(liao)的聚合(he)物為基(ji)本原料(liao)的防(fang)(fang)(fang)水阻隔型材料(liao)。比重較小(xiao)，延伸性(xing)較強，適(shi)應變形能(neng)(neng)力高，耐腐蝕，耐低溫，抗凍(dong)性(xing)能(neng)(neng)好。

土工膜特點
高機械強度-養殖防滲膜具有良好的機械強度，斷裂拉伸強度28 MPa，斷裂伸長率700%。
低成本、益-HDPE防滲膜新技術提高了防滲效果，但生產工藝更加科學、快捷，產品成本比傳統防水材料低，據估計，采用HDPE防滲膜的總體方案可節約成本的50%左右。
7.施(shi)工(gong)(gong)速(su)度快-防滲膜具有(you)較高(gao)的(de)柔(rou)性，有(you)多種規格(ge)和不(bu)同的(de)敷設形式以滿(man)足(zu)不(bu)同工(gong)(gong)程的(de)要(yao)求，采用熱熔焊，焊縫強度高(gao)，施(shi)工(gong)(gong)方便、快捷、。

8.用于環保(bao)、、防滲膜的(de)材料是(shi)環保(bao)材料，防滲原則是(shi)一般的(de)物理變化，不產(chan)生(sheng)任何有(you)害物質(zhi)，是(shi)環境(jing)保(bao)護、水(shui)產(chan)養殖和飲水(shui)池的(de) 選(xuan)擇。

平(ping)(ping)擠工(gong)(gong)(gong)藝為兩(liang)步成形法，先(xian)將光(guang)面(mian)(mian)(mian)(mian)(mian)(mian)HDPE土(tu)工(gong)(gong)(gong)膜生(sheng)(sheng)產(chan)(chan)完成后(hou)通過(guo)噴淋粗糙(cao)(cao)(cao)顆粒的(de)(de)(de)方式在光(guang)面(mian)(mian)(mian)(mian)(mian)(mian)上形成糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)，成品(pin)不是(shi)整體(ti)材料，糙(cao)(cao)(cao)點(dian)易剝(bo)(bo)落(luo)。吹膜工(gong)(gong)(gong)藝可以根據(ju)不同(tong)垃(la)圾填埋工(gong)(gong)(gong)程(cheng)的(de)(de)(de)不同(tong)地形地勢要求，通過(guo)調節吹氮壓(ya)強、方向等(deng)方式，生(sheng)(sheng)產(chan)(chan)出糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)高度(du)更(geng)高的(de)(de)(de)糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)HDPE土(tu)工(gong)(gong)(gong)膜產(chan)(chan)品(pin)，產(chan)(chan)品(pin)摩擦力更(geng)大，邊坡穩定性(xing)更(geng)好，系數更(geng)高，從而(er)能更(geng)好的(de)(de)(de)滿足工(gong)(gong)(gong)程(cheng)要求。舉例來說，標準(zhun)指(zhi)標中對糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)HDPE土(tu)工(gong)(gong)(gong)膜的(de)(de)(de)糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)高度(du)要求為0.25mm，吹膜工(gong)(gong)(gong)藝可以生(sheng)(sheng)產(chan)(chan)出0.5mm（較(jiao)常(chang)用(yong)）及(ji)0.75mm（一般常(chang)用(yong)）的(de)(de)(de)糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)HDPE土(tu)工(gong)(gong)(gong)膜產(chan)(chan)品(pin)，而(er)平(ping)(ping)擠工(gong)(gong)(gong)藝由于其工(gong)(gong)(gong)藝本身的(de)(de)(de)缺陷問題，致使生(sheng)(sheng)產(chan)(chan)出的(de)(de)(de)產(chan)(chan)品(pin)具(ju)有很大的(de)(de)(de)局(ju)限性(xing)，糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)HDPE土(tu)工(gong)(gong)(gong)膜的(de)(de)(de)糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)高度(du)是(shi)不可控(kong)的(de)(de)(de)。再加上平(ping)(ping)擠工(gong)(gong)(gong)藝生(sheng)(sheng)產(chan)(chan)出的(de)(de)(de)糙(cao)(cao)(cao)面(mian)(mian)(mian)(mian)(mian)(mian)HDPE土(tu)工(gong)(gong)(gong)膜糙(cao)(cao)(cao)點(dian)和膜本身不為整體(ti)，糙(cao)(cao)(cao)點(dian)易剝(bo)(bo)落(luo)，從以往經驗來看的(de)(de)(de)話，一般不使用(yong)平(ping)(ping)擠工(gong)(gong)(gong)藝生(sheng)(sheng)產(chan)(chan)的(de)(de)(de)HDPE土(tu)工(gong)(gong)(gong)膜產(chan)(chan)品(pin)。