塑料止水带的品质指标包括

塑料止水带的品质指标包括    131 6657 0832

1．塑料止水带作用与原理

1. function and principle of plastic water stop belt

塑料止水带是由聚氯乙烯树脂与各种填加剂，经混合、造粒、挤出等工序而制成的止水材料。该产品利用弹性体材料具有的弹性变形特性在建筑构造接缝中起到防漏、防渗作用，且具有耐腐蚀、耐久性好的特点。塑料止水带主要用于混凝土浇注时设置在施工缝及变形缝内与混凝土构成为一体的基础工程。如隧道、涵洞、引水渡槽、拦水坝、贮液构筑物、地下设施等。

Plastic sealing strip is made of polyvinyl chloride resin and various filling agent, through mixing, granulation, extrusion and other processes made of water sealing material. The product utilizes the elastic deformation property of the elastomer material to prevent leakage and seepage in the structural joint of the building, and has the characteristics of corrosion resistance and good durability. The plastic water stopping belt is mainly used for concrete pouring, and is arranged in the construction joint and the deformation joint to form a basic project with the concrete as a whole. Such as tunnel, culvert, aqueduct, dam, reservoir structures, underground facilities, etc..

塑料止水带的品质指标包括    131 6657 0832

2．塑料止水带技术标准

2. plastic sealing tape technical standards

测试项目性能指标硬度（邵尔A），度≥65拉伸强度，MPa≥12扯断伸长率，%300撕裂强度，KN/m≥25脆性温度，℃≤-30热空气老化70℃×72h拉伸强度，MPa≥10扯断伸长率，%≥240

The hardness test project performance index (shore A), more than 65 of the tensile strength, elongation at break of MPa = 12, KN/m = 25%300, tear strength, brittle temperature, C = -30 hot air aging 70 ~ C 72h tensile strength, elongation at break of MPa = 10,% = 240

3．塑料止水带施工方法

Construction method of 3. plastic water stop belt

塑料止水带施工方法与橡胶止水带相同。在浇埋时要使其与混凝土界面贴合平整，接头部分粘接紧固，浇埋过程中要以适当的力充分震捣混凝土，使其与混凝土结合良好，以获得*佳的止水效果。

The construction method of plastic water stop belt is the same as that of rubber water stop belt. In the pouring buried to make it smooth and fit the concrete interface, the joint part of the adhesive fastening, pouring process to buried in an appropriate capacity of fully vibrating concrete, the good combination with concrete, in order to obtain the best sealing effect.

4．塑料止水带施工注意事项

4. plastic water stop construction notice

1） 在施工过程中，由于混凝土中有许多尖角的石子和钢筋，操作是要注意避免对止水带造成机械损伤。

1) in the course of construction, because there are many pointed stones and reinforcing bars in the concrete, the operation should pay attention to avoid mechanical damage to the water stopping belt.

2） 在定位塑料止水带时，要使其与混凝土界面贴合平整，不能出现止水带翻转、扭曲等现象，否则应及时进行调正。

2) in the positioning of plastic water stop belt, to make it and the concrete interface leveling, can not appear "water stop", "flip", "distortion" and so on, otherwise should be timely adjustment.

3） 在浇筑固定止水带时，应防止止水带发生偏移，影响止水效果。

3) when pouring the fixed water stop belt, the water stop belt should be prevented from shifting and the sealing effect will be affected.

4） 塑料止水带接头可利用粘接、热焊接等方法，保证接头牢固。

4) the joint of plastic water stop belt can be secured by bonding and thermal welding.

5） 浇注混凝土过程中要注意充分震捣，以达到止水带和混凝土充分结合

5) in the process of pouring concrete, it is necessary to pay attention to the full shock and tamping so as to achieve the full combination of the water stopping belt and concrete

塑料止水带的品质指标包括    131 6657 0832

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