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遇水膨胀橡胶垫圈,地铁专用防水材料图1遇水膨胀橡胶垫圈,地铁专用防水材料图2遇水膨胀橡胶垫圈,地铁专用防水材料图3遇水膨胀橡胶垫圈,地铁专用防水材料图4遇水膨胀橡胶垫圈,地铁专用防水材料图5

遇水膨胀橡胶垫圈,地铁专用防水材料

2021-12-06 23:017210已售
价格:10.00/件
品牌:衡水众志橡胶科技开发有限公司
断裂伸长率:2%
形态:层状
起订:100件
供应:10000件
断裂伸长率 2%
形态 层状
抗弯强度 6
用途 水封
厂家(产地) 河北
不透水性 1
材质 天然橡胶
产地 4
等级 5
规格 3
抗压强度 7
拉伸强度 8
撕裂强度 9
形状 长方形
执行标准 国标
芯材 玻璃棉
经营模式 生产加工
品牌 众鑫
准入认证 3C认证

    

        
1350 05
1350 01


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 产品名称     

    

                  

    

        遇水膨胀橡胶垫圈     

    

        遇水膨胀橡胶垫圈,主要是用于盾构管片在安装过程中的螺栓孔的防水。采用遇水膨胀橡胶,利用螺栓压密和橡胶膨胀双重作用加强防水。     

    

           设置防渗漏的遇水膨胀橡胶垫圈应符合如下规定:     

    

           (1)遇水膨胀橡胶垫圈应设置在肋腔螺孔口(通常制成锥形倒角),特殊需要时,也可设置在环纵面螺孔口;     

    

           (2)遇水膨胀橡胶垫圈与衬砌遇水膨胀橡胶垫圈沟槽匹配,它在螺帽与垫圈的作用下挤入螺孔内起到压密或膨胀止水。在充分止水条件特殊需要时,也可设置在环纵面螺孔口下, 遇水膨胀橡胶垫圈应减小断面,节约用量;     

    

           (3)遇水膨胀橡胶垫圈的外形,应利于压入密封圈沟槽,使密封圈与螺栓、螺孔混凝土都压密止水。 遇水膨胀橡胶垫圈材料应是氯丁橡胶、水膨胀橡胶,也可采用橡塑制品或塑料制品。     

    

        遇水膨胀橡胶垫圈技术性能指标     

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
                    

                        序号                     

                
                    

                        检测项目                     

                
                    

                        指标                     

                
                    

                        测试标准                     

                
                    

                        1                     

                
                    

                        邵氏硬度(度)                     

                
                    

                        42±7                     

                
                    

                        GB/T531                     

                
                    

                        2                     

                
                    

                        拉伸强度,MPa,≥                     

                
                    

                        3.5                     

                
                    

                        GB/T528                     

                
                    

                        3                     

                
                    

                        断裂伸长率,%≥                     

                
                    

                        450                     

                
                    

                        4                     

                
                    

                        体积膨胀率,%≥                     

                
                    

                        400                     

                
                    

                        GB/T18173.3-2002                     

                
                    

                        5                     

                    

                                              

                
                    

                        反复浸水试验                     

                
                    

                        拉伸强度,MPa,≥                     

                
                    

                        3.0                     

                
                    

                        断裂伸长率,%≥                     

                
                    

                        350                     

                
                    

                        体积膨胀率,%≥                     

                
                    

                        300                     

                
                    

                        6                     

                
                    

                        低温弯折,-20℃×2h                     

                
                    

                        无裂纹                     

                
                    

                        GB12952                     

                
                    

                        7                     

                
                    

                        防霉等级                     

                
                    

                        达到与低于2级                     

                
                    

                        GB2423-16-1999                     

                
                    

                        净水膨胀倍率=膨胀后体积/膨胀前体积×100%                     

                
                    

                        注:1、成品切片测试应达到本标准的80%。                     

                    

                            2、接头部位的拉伸强度指标不得低于本标准的50%。                     

                
    

                                                                                                                  

    

        
    

    

            图片3    

    

        产品详细介绍     

                     

        设备图     

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