• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Geotechnical frontiers >Laboratory Measurement of the Linear Thermal Expansion of Geomembranes Using a Dynamic Mechanical Analyzer (DMA)
【24h】

Laboratory Measurement of the Linear Thermal Expansion of Geomembranes Using a Dynamic Mechanical Analyzer (DMA)

机译：使用动态机械分析仪（DMA）在实验室测量土工膜的线性热膨胀

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Thermal expansion is a critical property of geomembranes as it can affect the formation of wrinkles during their installation as well as for exposed applications. When an excessive number of wrinkles has developed because of an excessive dilatation of the geomembrane, these wrinkles may become interconnected, which increases the risk and extent of leakage. This paper introduces the test procedure that should be followed to permit the evaluation of thermal expansion characteristics of geomembranes using a Dynamic Mechanical Analyzer. It is shown that the test should be conducted with low applied stress and very low heating rate. In addition, the effect of the specimen width and length is analyzed. Finally, differences in behavior between machine and cross direction are characterized. Overall, it is concluded that this technique provides an effective tool for measuring the linear thermal expansion of geomembranes under conditions simulating their use in the field.
机译：热膨胀是土工膜的关键特性，因为它会影响褶皱在安装过程中以及裸露应用中的形成。当由于土工膜的过度膨胀而产生过多的皱纹时，这些皱纹可能会相互连接，从而增加了泄漏的风险和程度。本文介绍了应遵循的测试程序，以允许使用动态力学分析仪评估土工膜的热膨胀特性。结果表明，应在低施加应力和极低加热速率下进行测试。另外，分析了样品宽度和长度的影响。最后，表征了机器方向和横向之间的行为差​​异。总的来说，可以得出结论，该技术为在模拟土工膜的现场使用条件下测量土工膜的线性热膨胀提供了有效的工具。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号