一、什么是糙面hdpe土工膜
糙(cao)(cao)面hdpe土(tu)工(gong)膜,又稱(cheng)糙(cao)(cao)面土(tu)工(gong)膜,是以高(gao)密度聚乙(yi)烯樹脂顆粒為原料(liao)經過吹膜三層共擠起糙(cao)(cao)制成(cheng)的土(tu)工(gong)材料(liao),由約97.5%高(gao)品質聚乙(yi)烯,2.5%的碳黑、微量的抗氧劑和(he)熱穩(wen)定劑制成(cheng)。
糙(cao)(cao)面(mian)HDPE土(tu)工(gong)膜包括單(dan)糙(cao)(cao)面(mian)土(tu)工(gong)膜和雙糙(cao)(cao)面(mian)土(tu)工(gong)膜以及單(dan)雙柱點土(tu)工(gong)膜,在(zai)工(gong)程(cheng)中主(zhu)要是(shi)加大與基(ji)底(di)和坡面(mian)的(de)摩擦(ca)系數,增大摩擦(ca)力,起到防滑(hua)的(de)作(zuo)用。
二、土工膜糙面和光面有什么區別
土工膜有(you)糙面和光面兩種,它們之間有(you)明(ming)顯的差別:
1、外觀不同
糙面土(tu)工(gong)膜的外表(biao)是粗糙的,光(guang)(guang)面土(tu)工(gong)膜則是光(guang)(guang)面鏡子(zi)面,可以反光(guang)(guang)射影,看(kan)起來比較亮。
2、性能不同
糙(cao)面(mian)土(tu)(tu)工(gong)(gong)膜(mo)比光(guang)面(mian)土(tu)(tu)工(gong)(gong)膜(mo)摩擦系(xi)數更大(da),體現表(biao)面(mian)摩擦系(xi)數的一個重要指標,就是土(tu)(tu)工(gong)(gong)膜(mo)表(biao)面(mian)剪(jian)切強度和摩擦角。另外,糙(cao)面(mian)土(tu)(tu)工(gong)(gong)膜(mo)比光(guang)面(mian)土(tu)(tu)工(gong)(gong)膜(mo)有(you)更好的斷裂伸長(chang)率、耐(nai)環境(jing)應力開裂性能以及(ji)環境(jing)適應性。
3、應用不同
糙面土工(gong)膜(mo)主(zhu)要用在(zai)一些(xie)日常生活垃圾填埋場(chang)、尾礦庫(ku)等項目的邊坡(po)防(fang)滑(hua)防(fang)滲和封場(chang);而(er)光(guang)面防(fang)滲膜(mo)則是用在(zai)填埋場(chang)底層、人工(gong)湖、水庫(ku)等工(gong)程防(fang)滲主(zhu)體中。
4、價格不同
糙(cao)面的加工(gong)成本(ben)要(yao)高于光(guang)面土工(gong)膜(mo),糙(cao)面土工(gong)膜(mo)加工(gong)工(gong)藝更特殊、復雜,因此價格也會貴一些。
三、糙面hdpe土工膜和光面hdpe土工膜哪個好
糙(cao)面(mian)(mian)(mian)(mian)(mian)土工膜(mo)和光面(mian)(mian)(mian)(mian)(mian)土工膜(mo)相比(bi),各(ge)有(you)各(ge)的(de)優勢,并不(bu)一定(ding)哪種(zhong)更好,糙(cao)面(mian)(mian)(mian)(mian)(mian)土工膜(mo)有(you)粗糙(cao)的(de)顆粒(li),可以增加(jia)摩(mo)擦(ca)系數和附著力,非常(chang)適(shi)合用于各(ge)種(zhong)堤壩加(jia)固,而光面(mian)(mian)(mian)(mian)(mian)在這方面(mian)(mian)(mian)(mian)(mian)就沒有(you)糙(cao)面(mian)(mian)(mian)(mian)(mian)有(you)優勢;但光面(mian)(mian)(mian)(mian)(mian)土工膜(mo)的(de)優勢在于造價要低一些,如(ru)何選擇主(zhu)要看應用領域。