内容简介
GB/T 21492—2019 代替 GB/T 21492—2008玻璃纤维增强塑料顶管 Glass fiber reinforced plastics jacking pipes [ISO 25780:2011,Plastics piping systems for pressure and non-pressure water supply, irrigation, drainage or sewerage— Glass-reinforced thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin—Pipes with flexible joints intended to be installed using jacking techniques, NEQ]
2019-08-30 发布
2020-07-01 实施
前言......................................1
1范围.......................................1
2规范性引用文件..................................1
3术语和定义....................................2
4分类和标记....................................3
5 原材料.....................................3
6要求.......................................4
7试验方法....................................13
8 检验规则...................................16
9标志、包装、运输、贮存、出厂证明书和技术文件..................18
10其他.....................................19
附录A （规范性附录）树脂浇铸体的性能要求....................20
附录B （规范性附录）初始环向拉伸强力试样 ...................22
附录C （规范性附录）极限顶力与允许顶力计算方法.................23
附录D （规范性附录）长期弯曲应变Sb试验及确定方法 ..............24
附录E （资料性附录）连接技术说明........................27