钢纤维织物的耐久性能以及钢纤维织物与钢筋砂浆-钢筋混凝土系统界面的粘结性能

IF 3.7 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2024-09-27 DOI:10.1021/acs.langmuir.4c02269

Xiaoyuan Pei, Chenxia Zhou, Tiancan Zhang, Shengkai Liu, Jiankang Wang, Shigang Luo, Zhiwei Xu

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引用次数: 0

摘要

建筑结构的老化和破损一直是工程领域关注的问题。为了应对这些挑战，同时支持现代绿色和可持续发展目标，本研究介绍了一种采用钢纤维织物作为主要加固材料的创新加固系统。通过优化钢纤维与热熔胶（HMA）之间的相容性，设计出了钢制纺织品。这些纺织品随后被用于加固混凝土结构，形成了钢纺织品加固砂浆（STRM）加固混凝土系统。研究还考察了钢纤维织物的耐久性以及 STRM 钢筋混凝土系统的界面粘结性能。结果表明，钢纤维与乙烯-醋酸乙烯共聚物（HMA-2）的相容性较好，用其制备的钢纺织品具有优异的耐水热和耐腐蚀性能。系统养护 28 天后，STRM 增强混凝土系统的整体抗折强度提高了 100.03%，界面剪切荷载提高了 49.54%，界面剪切刚度提高了 61.2%，正拉伸粘结性能提高了 26.1%。这证明 STRM 对混凝土加固系统具有良好的加固效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Durability Properties of Steel Textiles and Bonding Properties at the Interface of Steel Textiles with Reinforced Mortar-Reinforced Concrete Systems

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Durability Properties of Steel Textiles and Bonding Properties at the Interface of Steel Textiles with Reinforced Mortar-Reinforced Concrete Systems

Aging and deterioration of building structures have been persistent concerns in the field of engineering. To address these challenges while supporting modern green and sustainable development goals, this study introduces an innovative reinforcement system that employs steel textiles as the primary reinforcing material. The steel textiles were engineered by optimizing the compatibility between steel fibers and a hot melt adhesive (HMA). These textiles were then used to reinforce concrete structures, creating a steel textile-reinforced mortar (STRM)-reinforced concrete system. The study also examined the durability of the steel textiles and the interfacial bonding performance within the STRM-reinforced concrete system. The results showed that the compatibility between steel fibers and ethylene vinyl acetate copolymer (HMA-2) is better, and the steel textiles prepared with it have superior hydrothermal and corrosion resistance. After the system had been maintained for 28 days, the overall flexural strength of the STRM-reinforced concrete system was increased by 100.03%, the interfacial shear load by 49.54%, the interfacial shear stiffness by 61.2%, and the positive tensile bond performance by 26.1%. This proves that STRM has a good reinforcement effect on the concrete reinforcement system.

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).