膨润土防渗毯施工
膨润土防渗毯施工
一、材料
所选用的膨润土防渗毯具有国家或部门认可的测试单位的测试报告，证件齐全，并按施工规范的规定进行现场抽样，送到具有相应资质的实验室进行检测，检测合格后才能使用。使用前进行外观检查，如有撕裂、穿洞、侵蚀等损坏的不得使用。
膨润土防渗毯主要技术指标
项目        单位        技术指标
                标准型        加强型
单位面积质量        g/m2        ＞5000        ＞5000
厚度        Mm        ＞6.0        ＞6.0
断裂强度        KN/m        ≥10.0        ＞10.0
断裂伸长率        %        ≥6.0        ≥6.0
剥离强度        N        ≥60.0        60
与砼面粘附剥离强度        KN/m        ＞2.6        ＞2.6
垂直渗透系数        m/s        ＜5.0×10-9         ＜1.2×10-12
Pe膜厚        mm                0.2
二、运输、装卸与保管
膨润土防渗毯在运输过程中捆牢、盖严实、确保产品安全。
装卸过程中防止尖锐物品对包装及产品的损害，禁止采用钢丝绳吊装装卸，防止膨润土防渗毯受损或变形。
运抵工地后妥善保存，避免防潮、防渗、放水，储存时采用方木或其它物品垫起来，确保产品不与水接触。在运输、施工、存放过程中防止日光暴晒，避免强度受损；膨润土防渗毯存放采取防水措施，露天存放必须采用苫布、塑料布等覆盖严实，防止
Construction of impervious blanket of bentonite
Construction of impervious blanket of bentonite
One, materials
The use of bentonite impervious blanket of national or sectoral recognized testing unit test reports, certificates and complete, in accordance with the provisions of the construction norms site sampling, taken with the corresponding qualification testing laboratory, testing in order to use qualified . Prior to use visual inspection and, if torn, holes, erosion damage may not be used.
Bentonite seepage blanket the major technical indicators
Item Unit Technical Index
                Standard Enhanced
Mass per unit area g/m2> 5000> 5000
Thickness Mm> 6.0> 6.0
Breaking strength KN / m ≥ 10.0> 10.0
Elongation at break% ≥ 6.0 ≥ 6.0
Peel strength N ≥ 60.0 60
Concrete surface adhesion and peel strength of KN / m> 2.6> 2.6
Vertical permeability m / s <5.0 × 10-9 <1.2 × 10-12
Pe thickness mm 0.2
Second, transportation, handling and storage
Bentonite seepage blanket truss during transport, cover tight, and ensure product safety.
Loading and unloading sharp items to prevent damage to the packaging and products, prohibiting the use of wire rope lifting handling to prevent damage or deformation of bentonite seepage blanket.
After arriving at the site properly, avoid moisture, seepage, water distribution, storage, use party when the mat of wood or other materials up to ensure the product is not in contact with water. Transport, construction, to prevent sunlight exposure during storage to avoid damage intensity; bentonite waterproofing impervious blanket storage, open storage must be Tarpaulins, plastic sheeting and other cover tight, and prevent