• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Fourth International Conference on Repair, Rehabilitation, and Maintenance of Concrete Structures, and Innovations in Design and Construction Seoul, Korea, September 2000 >Development of Performance Criteria for Dimensionally Compatible Cement-Based Repair Materials
【24h】

Development of Performance Criteria for Dimensionally Compatible Cement-Based Repair Materials

机译：制定尺寸兼容的水泥基修补材料的性能标准

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

The unacceptably high failure rate for concrete repairs is a major problem in the repair industry. To achieve durable repairs, it is necessary to consider the factors affecting the design and selection of repair systems as parts of a composite system. Compatibility between repair material and existing substrate is one of the most critical components in the repair system. This paper summarizes research initiated by the Corps of Engineers to develop performance criteria for cement-based repair materials. Results of laboratory and field performance tests were correlated to provide a basis for development of performance criteria for the selection and specification of dimensionally compatible cement-based repair materials. Proposed performance criteria include a minimum value for tensile strength and maximum values for modulus of elasticity, drying shrinkage, and coefficient of thermal expansion. Also, resistance to cracking in restrained shrinkage tests is a requirement. A data sheet protocol is proposed for cement-based repair materials that would provide reliable, standardized information on pertinent material characteristics. Also, current efforts to develop a comprehensive analytical model to predict cracking resistance of repair materials are briefly described.
机译：混凝土维修的不可接受的高故障率是维修行业的主要问题。为了实现持久维修，有必要考虑影响维修系统设计和选择的因素，这些维修系统是复合系统的一部分。修复材料和现有基材之间的兼容性是修复系统中最关键的组件之一。本文总结了工程师团发起的研究，以制定水泥基修补材料的性能标准。实验室和现场性能测试的结果相互关联，为制定尺寸标准和基于尺寸的水泥基修补材料的性能标准提供了依据。提议的性能标准包括抗拉强度的最小值和弹性模量，干燥收缩率和热膨胀系数的最大值。另外，在收缩试验中必须具有抗开裂性。提出了针对水泥基修补材料的数据表协议，该协议将提供有关相关材料特性的可靠，标准化的信息。另外，简要描述了当前为开发全面的分析模型来预测修补材料的抗裂性所做的努力。

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