一、什么是糙面hdpe土工膜
糙(cao)面(mian)hdpe土工(gong)膜(mo),又(you)稱糙(cao)面(mian)土工(gong)膜(mo),是以高密(mi)度聚(ju)乙烯樹(shu)脂顆粒為原料經過吹(chui)膜(mo)三層共(gong)擠起糙(cao)制(zhi)成的土工(gong)材料,由約97.5%高品質聚(ju)乙烯,2.5%的碳黑、微(wei)量(liang)的抗氧(yang)劑和熱(re)穩定(ding)劑制(zhi)成。
糙(cao)面HDPE土(tu)(tu)工(gong)(gong)膜(mo)包(bao)括單糙(cao)面土(tu)(tu)工(gong)(gong)膜(mo)和(he)雙(shuang)糙(cao)面土(tu)(tu)工(gong)(gong)膜(mo)以(yi)及單雙(shuang)柱點土(tu)(tu)工(gong)(gong)膜(mo),在工(gong)(gong)程(cheng)中主要(yao)是加大與基底(di)和(he)坡面的摩(mo)擦系(xi)數,增大摩(mo)擦力(li),起到(dao)防滑的作用。
二、土工膜糙面和光面有什么區別
土工膜有(you)糙面(mian)和光面(mian)兩種(zhong),它們之(zhi)間有(you)明顯的差別:
1、外觀不同
糙(cao)面土工(gong)膜的(de)外(wai)表(biao)是粗糙(cao)的(de),光面土工(gong)膜則是光面鏡子(zi)面,可以反光射(she)影,看起來比(bi)較亮(liang)。
2、性能不同
糙面(mian)土(tu)工(gong)膜(mo)比光面(mian)土(tu)工(gong)膜(mo)摩擦系(xi)數更大,體(ti)現表面(mian)摩擦系(xi)數的(de)一(yi)個(ge)重要(yao)指標,就是土(tu)工(gong)膜(mo)表面(mian)剪切強度和摩擦角(jiao)。另外,糙面(mian)土(tu)工(gong)膜(mo)比光面(mian)土(tu)工(gong)膜(mo)有更好的(de)斷(duan)裂伸長(chang)率、耐環(huan)境應力開(kai)裂性(xing)能以及環(huan)境適(shi)應性(xing)。
3、應用不同
糙面土工(gong)膜(mo)主(zhu)要用在一些日(ri)常(chang)生活垃圾(ji)填埋(mai)場(chang)、尾礦庫(ku)等項(xiang)目的邊坡(po)防滑防滲和封場(chang);而光(guang)面防滲膜(mo)則是用在填埋(mai)場(chang)底層(ceng)、人工(gong)湖、水庫(ku)等工(gong)程(cheng)防滲主(zhu)體中。
4、價格不同
糙(cao)面(mian)的加(jia)工(gong)(gong)成本(ben)要高于(yu)光面(mian)土工(gong)(gong)膜,糙(cao)面(mian)土工(gong)(gong)膜加(jia)工(gong)(gong)工(gong)(gong)藝更特殊、復雜(za),因(yin)此價格也會貴一些。
三、糙面hdpe土工膜和光面hdpe土工膜哪個好
糙(cao)面(mian)(mian)(mian)土工(gong)(gong)膜(mo)和光(guang)面(mian)(mian)(mian)土工(gong)(gong)膜(mo)相比,各有各的(de)(de)優勢(shi),并不一定哪種更好,糙(cao)面(mian)(mian)(mian)土工(gong)(gong)膜(mo)有粗糙(cao)的(de)(de)顆粒,可以增加(jia)摩擦(ca)系數和附著力,非(fei)常適(shi)合用于各種堤壩加(jia)固,而(er)光(guang)面(mian)(mian)(mian)在這方面(mian)(mian)(mian)就(jiu)沒有糙(cao)面(mian)(mian)(mian)有優勢(shi);但光(guang)面(mian)(mian)(mian)土工(gong)(gong)膜(mo)的(de)(de)優勢(shi)在于造價要低一些,如何選(xuan)擇主要看應用領(ling)域。