一、什么是長絲土工布
長(chang)絲土(tu)工(gong)(gong)布(bu)是(shi)指聚酯長(chang)絲針刺無(wu)紡土(tu)工(gong)(gong)布(bu)，是(shi)一(yi)種(zhong)常用的(de)(de)(de)環保(bao)型建(jian)筑材料。作為(wei)一(yi)種(zhong)增強(qiang)材料，長(chang)絲土(tu)工(gong)(gong)布(bu)較厚，可以(yi)保(bao)證土(tu)工(gong)(gong)布(bu)的(de)(de)(de)三(san)維空隙率，有利于(yu)優良水力學性能(neng)的(de)(de)(de)實現，并且它的(de)(de)(de)頂(ding)破強(qiang)度有很大(da)的(de)(de)(de)優勢，尤其(qi)適合于(yu)擋(dang)土(tu)墻和路(lu)堤加(jia)筋(jin)，是(shi)優良的(de)(de)(de)土(tu)工(gong)(gong)增強(qiang)材料。
二、長絲土工布和短絲土工布的區別有哪些
土(tu)(tu)工(gong)(gong)布(bu)(bu)分為長(chang)絲土(tu)(tu)工(gong)(gong)布(bu)(bu)和短(duan)絲土(tu)(tu)工(gong)(gong)布(bu)(bu)兩種(zhong)(zhong)，這(zhe)兩種(zhong)(zhong)雖然都是(shi)土(tu)(tu)工(gong)(gong)材料，但在許多方(fang)面都存(cun)在區(qu)(qu)別，土(tu)(tu)工(gong)(gong)布(bu)(bu)長(chang)絲和短(duan)絲的區(qu)(qu)別主要有：
1、生產原料的區別
長絲(si)土(tu)(tu)工布(bu)采(cai)用優(you)質聚酯切(qie)片源生產而(er)成，原料是顆粒狀。短絲(si)土(tu)(tu)工布(bu)采(cai)用PET滌綸(lun)短纖維生產而(er)成，原料是化(hua)纖。
2、生產工藝的區別
長(chang)絲(si)土(tu)工(gong)布(bu)的生產工(gong)藝是聚(ju)酯切(qie)片融(rong)化后(hou)，拉(la)伸收縮(suo)，切(qie)成(cheng)短纖(xian)纖(xian)維，然后(hou)機器(qi)編織加(jia)工(gong)而成(cheng)。短絲(si)土(tu)工(gong)布(bu)的生產工(gong)藝為開松、梳理、雜亂(luan)、鋪網針刺制成(cheng)布(bu)狀。
3、外觀的區別
長絲(si)土(tu)工布顏(yan)色為白(bai)色，短(duan)絲(si)土(tu)工布纖維絲(si)短(duan)，顏(yan)色要比白(bai)色土(tu)工布亮些。
4、性能的區別
長絲土工布(bu)的(de)斷(duan)裂強度(du)等(deng)參數要比短絲土工布(bu)高。
5、價格的區別
同等(deng)克重的(de)(de)土工(gong)布，長絲土工(gong)布的(de)(de)價(jia)格(ge)一般比短絲土工(gong)布要高。
6、適用標準的區別
長(chang)絲土(tu)工(gong)(gong)布(bu)適(shi)(shi)用(yong)的(de)國家標準是(shi)《土(tu)工(gong)(gong)合成材料(liao)(liao) 長(chang)絲機織(zhi)土(tu)工(gong)(gong)布(bu)》（GB/T 17639-2008），短(duan)絲土(tu)工(gong)(gong)布(bu)適(shi)(shi)用(yong)的(de)國家標準是(shi)《土(tu)工(gong)(gong)合成材料(liao)(liao) 短(duan)纖(xian)針刺非織(zhi)造土(tu)工(gong)(gong)布(bu)》（GB/T 17638-2017）。
三、土工布長絲和短絲哪個好
無論是長絲土工布還是(shi)短絲土工(gong)(gong)布都(dou)是(shi)在工(gong)(gong)程中起到加筋、防護的(de)作用(yong)，相(xiang)比較而言，長絲土工(gong)(gong)布性能更(geng)好，短絲土工(gong)(gong)布更(geng)便宜，更(geng)易掌握，并不一定哪種更(geng)好。在選(xuan)(xuan)擇(ze)土工(gong)(gong)布的(de)時(shi)候，到底選(xuan)(xuan)長絲土工(gong)(gong)布還是(shi)短絲土工(gong)(gong)布，主要根據工(gong)(gong)程的(de)具體(ti)情(qing)況和設計要求而定。
