垃圾(ji)填埋場專用(yong)土工(gong)膜是(shi)多種土工(gong)膜種類(lei)中的(de)(de)一種，其主要(yao)(yao)原(yuan)(yuan)料是(shi)由高密(mi)度聚(ju)乙烯中密(mi)度聚(ju)乙烯構成，分為光面(mian)和(he)(he)糙(cao)面(mian)兩種，其中糙(cao)面(mian)還要(yao)(yao)分為單糙(cao)面(mian)和(he)(he)雙糙(cao)面(mian)土工(gong)膜，現(xian)在我(wo)們常用(yong)的(de)(de)垃圾(ji)填埋場專用(yong)土工(gong)膜主要(yao)(yao)是(shi)環保型（國標二(er)型）土工(gong)膜和(he)(he)我(wo)國城建(jian)部(bu)標準（CJ/T234-2006標準）土工(gong)膜，兩種標準的(de)(de)土工(gong)膜，因為要(yao)(yao)求的(de)(de)指標不同(tong)，添加的(de)(de)原(yuan)(yuan)料也各不相同(tong)，其力學指標也有很大差(cha)異。

土工(gong)膜是具有防(fang)滲、隔離性(xing)能(neng)的黑色(se)塑料膜。

土工(gong)膜(mo)(mo)屬于土工(gong)材料的一種，其主要(yao)作用是隔離和防滲，土工(gong)膜(mo)(mo)也(ye)被稱為(wei)防滲膜(mo)(mo)，因為(wei)原材料為(wei)高密度聚乙(yi)烯（hdpe），所以(yi)也叫(jiao)hdpe土工膜、hdpe防滲膜。

土工膜的規格型號：厚度從3mm-0.2mm，寬(kuan)幅從0.5米-8米(mi)，長(chang)度(du)一般按現場情(qing)況(kuang)定做。

土工膜的執(zhi)行標(biao)準(zhun)：國標(biao)為GB/T17643-2011，垃圾填埋場行(xing)業標準為CJ/T234-2006，兩(liang)布一膜標(biao)準為GB/T17642-2008。

土工(gong)膜(mo)的優勢：土工(gong)膜(mo)屬于環(huan)保材料不會對環(huan)境造成污染，施(shi)工(gong)非常方便快捷而且造價低(di)；耐(nai)酸堿、抗拉(la)強度高(gao)、耐(nai)低(di)溫脆化(hua)（-70℃）。

土(tu)工(gong)(gong)膜的(de)應用范圍：垃圾填埋場(chang)、危廢、固(gu)廢、儲油罐、人工(gong)(gong)湖(hu)、蓄水(shui)池(chi)、河道、水(shui)產養(yang)殖池(chi)的(de)防滲(shen)工(gong)(gong)程中，這也只是其(qi)中的(de)一部分，土(tu)工(gong)(gong)膜應用前景可(ke)觀(guan)，是保衛綠(lv)水(shui)青山不可(ke)缺少的(de)防滲(shen)材料。

垃(la)圾(ji)填(tian)埋(mai)(mai)(mai)場(chang)(chang)專用(yong)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)是(shi)多(duo)種土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)種類中(zhong)的(de)(de)(de)(de)一(yi)(yi)種，其(qi)主要原(yuan)料(liao)是(shi)由(you)高(gao)密(mi)度聚乙(yi)烯中(zhong)密(mi)度聚乙(yi)烯構成，分為(wei)(wei)光面和(he)(he)糙面兩(liang)種，其(qi)中(zhong)糙面還要分為(wei)(wei)單糙面和(he)(he)雙糙面土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)，現在我們常用(yong)的(de)(de)(de)(de)垃(la)圾(ji)填(tian)埋(mai)(mai)(mai)場(chang)(chang)專用(yong)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)主要是(shi)環保(bao)(bao)型(xing)（國(guo)(guo)標(biao)二型(xing)）土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)和(he)(he)我國(guo)(guo)城建(jian)部標(biao)準（CJ/T234-2006標(biao)準）土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)，兩(liang)種標(biao)準的(de)(de)(de)(de)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)，因為(wei)(wei)要求的(de)(de)(de)(de)指(zhi)標(biao)不(bu)同(tong)，添加的(de)(de)(de)(de)原(yuan)料(liao)也(ye)各不(bu)相(xiang)(xiang)(xiang)同(tong)，其(qi)力(li)學(xue)指(zhi)標(biao)也(ye)有(you)很(hen)大(da)差異(yi)，總(zong)的(de)(de)(de)(de)來(lai)說(shuo)美標(biao)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)要比環保(bao)(bao)型(xing)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)高(gao)一(yi)(yi)個等級，原(yuan)材(cai)料(liao)選用(yong)也(ye)相(xiang)(xiang)(xiang)對(dui)嚴格一(yi)(yi)些(xie)，現在國(guo)(guo)內大(da)多(duo)是(shi)垃(la)圾(ji)填(tian)埋(mai)(mai)(mai)場(chang)(chang)工(gong)(gong)(gong)(gong)(gong)程(cheng)的(de)(de)(de)(de)設(she)計要求都是(shi)以(yi)美標(biao)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)的(de)(de)(de)(de)指(zhi)標(biao)為(wei)(wei)準的(de)(de)(de)(de)，垃(la)圾(ji)填(tian)埋(mai)(mai)(mai)場(chang)(chang)專用(yong)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)相(xiang)(xiang)(xiang)對(dui)于(yu)(yu)普通土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)來(lai)說(shuo)，其(qi)拉(la)伸強(qiang)力(li)更(geng)(geng)高(gao)，伸長率更(geng)(geng)大(da)，耐酸性更(geng)(geng)強(qiang)，土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)使用(yong)時間更(geng)(geng)長，由(you)于(yu)(yu)雨水較多(duo)，我國(guo)(guo)垃(la)圾(ji)填(tian)埋(mai)(mai)(mai)場(chang)(chang)專用(yong)土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)更(geng)(geng)偏向于(yu)(yu)使用(yong)具有(you)放滑作(zuo)用(yong)的(de)(de)(de)(de)糙面土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)，糙面土(tu)(tu)(tu)(tu)(tu)(tu)工(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)由(you)于(yu)(yu)本身特性決定(ding)，它(ta)更(geng)(geng)適合于(yu)(yu)我國(guo)(guo)的(de)(de)(de)(de)環境。