利用 NSM 技术对土工聚合物混凝土与 CFRP 板材之间的粘结进行实验和数值评估

IF 1.1 Q3 ENGINEERING, CIVIL
Ahmed H. Al-Abdwais
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引用次数: 0

摘要

摘要 土工聚合物混凝土是一种新的混凝土技术,它以土工聚合物粘结剂取代了传统的波特兰水泥,成为传统混凝土的替代品。过去几十年来,使用 CFRP 复合材料加固混凝土结构已成为一项重要技术。大多数研究都是针对传统的硅酸盐水泥混凝土进行的。本研究通过实验和有限元分析,评估了使用近表面安装加固系统的土工聚合物混凝土基材与 CFRP 复合材料之间的粘结性能。该项目包括混凝土棱柱与 NSM CFRP 层压板的粘结,并使用不同粘结长度的单层剪切试验装置进行测试。此外,还对粘结滑移行为进行了评估。实验结果表明,相对于粘接长度,平均粘接应力介于 8.97 和 15.58 之间,粘接性能显著。数值分析结果与实验结果具有可比性和良好的相关性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental and Numerical Assessment of Bonding Between Geopolymer Concrete and CFRP Sheet Using NSM Techniques
Abstract Geopolymer concrete is a new concrete technology that emerged as an alternative to conventional concrete by replacing traditional Portland cement with geopolymer binders. Strengthening of concrete structures using CFRP composites has become an essential technique last decades. Most of the studies were conducted on conventional concrete of Portland cement. In this research, an experimental and finite element analysis has been conducted to assess the bonding properties between geopolymer concrete substrate and CFRP composites using near-surface mounted strengthening system. The program consisted of concrete prisms bonded with NSM CFRP laminate and tested using single-lap shear test set-up with different bond lengths. Bond-slip behaviour has also been evaluated. The experimental results exhibited significant bonding properties, achieving an average bonding stress between 8.97 and 15.58 relative to the bonding length. The numerical analysis showed comparable results and a good correlation with that of experimental work.
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来源期刊
CiteScore
2.00
自引率
58.30%
发文量
69
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