...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Composites for Construction >Small Beam Bond Test Method for CFRP Composites Applied to Concrete
【24h】

Small Beam Bond Test Method for CFRP Composites Applied to Concrete

机译：CFRP复合材料在混凝土中的小梁粘结试验方法

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

This paper presents the development of a test method that can be used to test the bond capacity of carbon fiber-reinforced polymer (CFRP) composites bonded to concrete. The rationale for the selection of the test method is described along with the results of the experimental work used to refine the test configuration and procedures. The research objectives were to develop a test method that (I) can be used to evaluate the durability of the FRP-concrete bond (adhesion failure mode); (2) facilitate multiple replicate for statistical validation; (3) is simple to conduct; and (4) provides comparative results that are easy to interpret. The method utilizes a small concrete beam modeled after the modulus of rupture test, which is typically used to measure concrete tensile strength. A number of small beam sizes and loading configurations were considered during the investigation. The final recommended specimen configuration is 4 × 4 × 14 in. (100 mm× 100 mm × 356 mm) beam with a half-depth saw cut at midspan. A 1 in. (25 mm) wide by 8 in. (203 mm) long CFRP strip is applied to the tension face of the beam over the saw cut. The specimen is loaded until failure with a single concentrated load at midspan over a 12 in. (305 mm) span. For durability testing, samples are prepared with the same materials and exposed to the desired accelerated conditioning protocol. Companion unexposed samples are also tested and the relative decrease in capacity is reported as the load to failure of the exposed specimen to that of the control specimen.
机译：本文介绍了一种可用于测试粘结到混凝土的碳纤维增强聚合物（CFRP）复合材料的粘结能力的测试方法的发展。描述了选择测试方法的基本原理，以及用于完善测试配置和程序的实验工作的结果。研究目的是开发一种测试方法，（I）可用于评估FRP-混凝土粘结的耐久性（粘结破坏模式）； （2）促进多次复制以进行统计验证； （3）操作简便； （4）提供易于解释的比较结果。该方法利用在断裂模量测试后建模的小型混凝土梁，该梁通常用于测量混凝土的抗拉强度。在研究过程中考虑了许多小梁尺寸和载荷配置。最终建议的标本配置为4×4×14英寸（100毫米×100毫米×356毫米）梁，在中跨切开一半深度的锯。将1英寸（25毫米）宽，8英寸（203毫米）长的CFRP条带应用到锯切上方梁的张紧面上。在跨度为12英寸（305毫米）的中跨上施加单个集中载荷，直到试样被破坏为止。为了进行耐久性测试，样品应使用相同的材​​料制备，并暴露于所需的加速调理方案中。还测试了同伴未暴露的样品，容量的相对降低被报告为暴露的样品对对照样品的破坏负荷。

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