• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Pipeline Division Specialty Conference; 20050821-24; Houston,TX(US) >Bonding Strength of Epoxy Coatings Used to Protect Concrete in Wastewater Facilities and 3-D FEM Analyses
【24h】

Bonding Strength of Epoxy Coatings Used to Protect Concrete in Wastewater Facilities and 3-D FEM Analyses

机译：用于保护废水设施中的混凝土的环氧涂料的粘结强度和3-D有限元分析

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, three commercially available epoxy-based coatings were selected to determine the changes in bonding strengths to concrete with curing time. The CIGMAT CT-2 (modified ASTM D 4541) test was used to determine the bonding strengths of the coatings to dry and wet concrete surfaces. The tests were conducted over a period of two years. A total of 33 CIGMAT CT-2 tests (laboratory and in-situ tests) were performed on the three epoxy coatings. Five failure types were identified. Test results showed that although all of the coatings were epoxy based, the bonding strength of the coatings to the dry and wet concrete surfaces were different. Epoxy-A (pure epoxy) and Epoxy-B (glass fiber reinforced epoxy) had good bonding strength ( > 1.4 MPa, 200 psi) on both dry and wet concrete surfaces; Epoxy-C (cementitous based epoxy coating) had poor cohesive bonding strength ( < 0.7 MPa, 100 psi) between the topcoat (epoxy) and the base material. A 3-D FEM analysis was performed to determine the effects of coating modulus and thickness on the stress distribution in the coating, coating to concrete interface and concrete.
机译：在这项研究中，选择了三种可商购的基于环氧的涂料，以确定与混凝土的粘结强度随固化时间的变化。使用CIGMAT CT-2（改良的ASTM D 4541）测试来确定涂层与干燥和湿润的混凝土表面的粘结强度。测试进行了两年的时间。在三种环氧涂料上进行了总共33次CIGMAT CT-2测试（实验室测试和原位测试）。确定了五种故障类型。测试结果表明，尽管所有涂料都是基于环氧的，但涂料与干，湿混凝土表面的粘结强度却不同。环氧A（纯环氧）和环氧B（玻璃纤维增​​强环氧树脂）在干燥和潮湿的混凝土表面上均具有良好的粘结强度（> 1.4 MPa，200 psi）；环氧C（水泥基环氧涂料）在面漆（环氧树脂）和基础材料之间的粘结强度很低（<0.7 MPa，100 psi）。进行了3-D有限元分析，以确定涂层模量和厚度对涂层，涂层至混凝土界面和混凝土中应力分布的影响。

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