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style="font-size:16px;">PE雙壁波紋管是以聚乙烯(PE）為主要原料，添加適量的添加劑經(jīng)過(guò)擠出成型。主要用于建筑室外排水和市政污水管。PE雙壁波紋管具有重量輕，流水阻力小，抗壓強度高，耐腐蝕，施工便捷等優(yōu)點(diǎn)。它是替代鑄鐵管和水泥管的理想排水管道。那么PE雙壁波紋管比水泥管好在哪里？有什么優(yōu)勢？</span> </p> <p style="text-indent:2em;" align="center"> <span style="font-size:16px;"><img src="/uploads/image/20230510/20230510104127_5585.jpg" alt="" /><br /> </span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">一、使用PE雙壁波紋管可大為縮短工期，降低施工難度。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">PE雙壁波紋管的單位重量比水泥管要輕得多，非常便于人工承插連接，施工難度比水泥管低很多。PE雙壁波紋管為6米每支，而水泥管一般2.5米每支，波紋管的連接速度快很多，大大縮短了工期。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">二、PE雙壁波紋管對溝槽的要求較低。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">水泥管是一種剛性管材，要保證承插接口的密閉性，需要將溝槽底部整理平整，一般都需要用混凝土鋪上基礎層，施工時(shí)要求工作人員認真負責。PE雙壁波紋管是一種撓性管，只需要溝底平整壓實(shí)即可。要求不高。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">三、PE管材柔性好，伸長(cháng)率高，抗沉降能力強。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">PE管材的伸長(cháng)率是鋼管的20倍以上，是PVC的6.5倍。它的柔性好，斷裂伸長(cháng)率高。當地面基礎沉降或者發(fā)生地震時(shí)，PE管會(huì )產(chǎn)生抗性形變但不會(huì )直接破裂。水泥管在沉降和地震時(shí)，接口處易錯位，管道易破裂。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">四、PE管材的滲透率遠低于水泥管，數值小于2％，不會(huì )污染地下水源。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">水泥管是剛性的，雖然都會(huì )配橡膠圈經(jīng)行密封，但效果很差。特別是因為水泥管的質(zhì)量重，施工時(shí)非常不方便操作，施工人員經(jīng)常很難保障承插效果，橡膠圈失去密封效果，接口滲水嚴重。污水滲入地層污染地下水源，并帶走接口周邊泥土，掏空土層易出現地面塌陷。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">五、PE管材的使用壽命超過(guò)50年。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">PE管材的使用壽命在50年以上。這一點(diǎn)是國家標準要求的，也得到了一些發(fā)達國家的實(shí)例證明。水泥管的標準要求使用壽命為20年，但是它的主要成分是硅酸鹽，在長(cháng)期受到污水和土壤中的酸堿腐蝕后，使用壽命將大為縮短。全國各地均有水泥管材由于污水滲漏導致地面沉降，接口錯位斷開(kāi)，幾年內就不得不維修更換的實(shí)例。</span> </p> <p style="text-indent:2em;" align="center"> <span style="font-size:16px;"><img src="/uploads/image/20230510/20230510104208_0634.jpg" alt="" /><br /> </span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">六、PE雙壁波紋管內壁光滑，不帶正負電荷，不容易結垢堵塞。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">PE雙壁波紋管內壁光滑，不容易結垢，不易造成沉積堵塞。而水泥管管壁粗糙，易沉積結垢，管徑會(huì )不斷縮小，影響水流的通流量，需要經(jīng)常疏通維護。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">七、PE雙壁波紋管單位質(zhì)量小，方便運輸和安裝。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">PE雙壁波紋管大部分都可以人工搬運，承插安裝，管材有柔性，施工時(shí)不易破碎。水泥管的單位重量大，裝卸和安裝須使用機械吊裝，并且在運輸與安裝時(shí)易碰撞破裂，造成損耗。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">八、在相同的流量要求和坡降、埋深條件一致時(shí)，PE雙壁波紋管可以比水泥管小一個(gè)規格。</span> </p> <p style="text-indent:2em;"> <span style="font-size:16px;">PE管內壁的粗糙系數為0.009，水泥管內壁的粗糙系數為0.014，按照謝才定律，進(jìn)行流量計算，PE雙壁波紋管可以比水泥管小一兩個(gè)規格，在實(shí)際中，一般可以小一個(gè)規格。比如設計的600口徑的水泥管材可以用500口徑的PE雙壁波紋管替代。</span> </p> <p style="text-indent:2em;"> <br /> </p> </div> </div> <div id="9v9p15x" 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