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Home Geomembrane Composite geomembrane
Single and double rough surface/stationary point geomembrane
Single and double rough surface/stationary point geomembrane
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waterproof board

Composite geomembrane

Product: Composite geomembrane Width: 3-6m can be customized Weight: 200g-3000g can be customized; Color: black, white, etc. can be customized; Double resistance: UV resistance, anti-oxidation can be customized; Usage: Suitable for various artificial Seepage prevention in lakes, underground construction projects, landfills, chemical sewage ponds, road tunnel projects, water conservancy and hydropower projects, roof greening, reservoir dams, oil depots and other projects;

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    Category: Geomembrane
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    Description

     复合土工膜是由长丝土工布或短纤土工布与 PE土工膜经热复合而成,具有平面排水、有防渗的优良特性。能满足水利、市政、建筑、交通,地铁、隧道、工程建设中的防渗,隔离,补强,防裂加固等土木工程需要。

    复合土工膜 (1).jpg

    复合土工膜产品规格:
    1. 一布两膜 
    基布: 100-1000g/m 膜厚: 0.1-1.5mm 
    2. 一布一膜 
    基布: 100-1000g/m 膜厚: 0.1-1.5mm 
    3. 两布一膜 
    基布: 80-600g/m 膜厚: 0.2-1.5mm

    4.多布多膜

    规格可定制

    产品特性:

    集防渗排水于一体、强度高、摩擦系数大、耐穿刺、耐老化、耐酸碱、防止水土流失。
    产品用途:

    主要用于水利、交通、隧道、机场、冶金尾矿、垃圾处理场、屋面防渗等各种加筋防渗工程。  

    复合土工膜的使用年限问题:

    主要是由塑料薄膜是否失去防渗隔水作用而定,据国家标准规定,水工用的厚度为0.2m的加稳定剂的聚乙烯薄膜,在清水条件下工作年限可达40~50年,在污水条件下 工作年限为30~40年。因此复合土工膜的使用年限足以满足大坝防渗要求的使用年限。 

     复合土工膜施工注意事项:        

    1、施工人员必须穿无钉鞋或胶底鞋,禁止在土工膜上任意踩踏。 

    2、铺膜后应及时进行防护层施工,防止热收缩引起土工膜变形及紫外线照射引起土工膜老化。        

    3、禁止接触可引起聚烯烃性能变化的化学物质,以免土工膜发生永久变形。        

    4、机械不得直接碾压土工膜表面。

    复合土工膜 (10).jpg

    复合土工膜性能指标

    序号

    项 目

    指 标

    允差,%

    备 注

    1

    单位面积质量( g/m 2 )

    按设计或合同规定

    -10

    2

    幅宽( cm)

    按设计或合同规定

    -1.0

    3

    断裂强力( KN/m)

    按设计或合同规定

    -5

    纵横向

    4

    断裂伸长率(%)

    30-100

    符合设计要求

    纵横向

    5

    撕破强力( KN)

    按设计或合同规定

    -8

    纵横向

    6

    CBR顶破强力(KN)

    按设计或合同规定

    -5

    7

    剥离强度( N/cm)

    6

    不低于标准

    纵横向

    8

    耐静水压( MPa)

    按表 3

    不低于标准

    9

    渗透系数( cm/s)

    按设计或合同规定

    符合设计要求

    复合土工膜技术标准

    项目

    指标

    单位面积质量 g/m 2

    400

    500

    600

    700

    800

    900

    1000

    膜材厚度 mm

    0.25-0.35

    0.30-0.50

    断裂强力 KN/m

    5.0

    7.5

    10.0

    12.0

    14.0

    16.0

    18.0

    断裂伸长率 %

    30-100

    CBR 顶破强力 KN

    1.1

    1.5

    1.9

    2.2

    2.5

    2.8

    3.0

    撕破强力 KN

    0.15

    0.25

    0.32

    0.40

    0.48

    0.56

    0.62

    剥离强度 N/cm

    大于等于 6

    大于等于 6

    耐静水压

    膜材厚度 mm

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    一布一膜 Mpa

    0.4

    0.5

    0.6

    0.8

    1.0

    1.2

    1.4

    二布一膜 Mpa

    0.5

    0.6

    0.8

    1.0

    1.2

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