Using graphene oxide to enhance the bonding properties between carbon fibers and cement matrix to improve the mechanical properties of cement-based composites

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2024-11-12 DOI:10.1016/j.conbuildmat.2024.138992

Wanfu Qiao , Mingxin Shi , Tianyi Ban , Bo Hou , Wenjiao Zhang , Xiangqing Kong

{"title":"Using graphene oxide to enhance the bonding properties between carbon fibers and cement matrix to improve the mechanical properties of cement-based composites","authors":"Wanfu Qiao , Mingxin Shi , Tianyi Ban , Bo Hou , Wenjiao Zhang , Xiangqing Kong","doi":"10.1016/j.conbuildmat.2024.138992","DOIUrl":null,"url":null,"abstract":"<div><div>The mechanical properties of carbon fiber (CF) reinforced cement-based materials are significantly influenced by the interface performance between CF and cement matrix. Improving this interfacial bond can be achieved through the electrophoretic deposition (EPD) method, using graphene oxide (GO). The efficiency and quality of GO deposition on the CF surface are directly related to the EPD parameters. Therefore, in this study, GO electrophoretic deposition CF (GO/CF) was prepared by controlling two key EPD parameters: voltage (10 V, 15 V, 20 V) and time (20 min, 40 min, 60 min). Furthermore, the reinforcing effects of the GO/CF obtained through EPD treatment was compared to those of 3-aminopropyltriethoxysilane modified CF (APS/CF) prepared by common surface treatment method (silanization). The results of single fiber pullout test indicated that GO/CF-15/60 (treated at 15 V for 60 min) had the best bonding performance with cement matrix among the silanized and various EPD-treated samples. Compared to untreated CF, the bond strength of GO/CF-15/60 to the matrix increased by 262 %, and it was also 88.5 % higher than that of APS/CF. This is because GO with wrinkled structure and oxygen-containing functional groups form the optimal deposition morphology and quantity on the CF surface under this EPD parameter. This promotes the adhesion of more hydration products to the CF surface, leading to increased densification with the surrounding matrix. In terms of mechanical properties, when the fiber content was 0.5 vol%, the flexural and compressive strengths of GO/CF-15/60 reinforced cement paste increased by 25.53 % and 5.25 % at 28 d, respectively. The improved interfacial properties facilitate better load transfer between the fiber and matrix, effectively inhibiting the propagation of surrounding microcracks and resulting in superior mechanical strength. A comparison of the bond strength of each modified fiber with the mechanical strength of the corresponding cement paste revealed a strong positive correlation. Therefore, by controlling EPD parameters, the optimal interfacial properties of CF/matrix can be achieved, significantly enhancing the mechanical properties of cement-based materials.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"453 ","pages":"Article 138992"},"PeriodicalIF":7.4000,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Construction and Building Materials","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0950061824041345","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The mechanical properties of carbon fiber (CF) reinforced cement-based materials are significantly influenced by the interface performance between CF and cement matrix. Improving this interfacial bond can be achieved through the electrophoretic deposition (EPD) method, using graphene oxide (GO). The efficiency and quality of GO deposition on the CF surface are directly related to the EPD parameters. Therefore, in this study, GO electrophoretic deposition CF (GO/CF) was prepared by controlling two key EPD parameters: voltage (10 V, 15 V, 20 V) and time (20 min, 40 min, 60 min). Furthermore, the reinforcing effects of the GO/CF obtained through EPD treatment was compared to those of 3-aminopropyltriethoxysilane modified CF (APS/CF) prepared by common surface treatment method (silanization). The results of single fiber pullout test indicated that GO/CF-15/60 (treated at 15 V for 60 min) had the best bonding performance with cement matrix among the silanized and various EPD-treated samples. Compared to untreated CF, the bond strength of GO/CF-15/60 to the matrix increased by 262 %, and it was also 88.5 % higher than that of APS/CF. This is because GO with wrinkled structure and oxygen-containing functional groups form the optimal deposition morphology and quantity on the CF surface under this EPD parameter. This promotes the adhesion of more hydration products to the CF surface, leading to increased densification with the surrounding matrix. In terms of mechanical properties, when the fiber content was 0.5 vol%, the flexural and compressive strengths of GO/CF-15/60 reinforced cement paste increased by 25.53 % and 5.25 % at 28 d, respectively. The improved interfacial properties facilitate better load transfer between the fiber and matrix, effectively inhibiting the propagation of surrounding microcracks and resulting in superior mechanical strength. A comparison of the bond strength of each modified fiber with the mechanical strength of the corresponding cement paste revealed a strong positive correlation. Therefore, by controlling EPD parameters, the optimal interfacial properties of CF/matrix can be achieved, significantly enhancing the mechanical properties of cement-based materials.

查看原文本刊更多论文

利用氧化石墨烯增强碳纤维与水泥基体之间的粘合性能，从而改善水泥基复合材料的机械性能

碳纤维（CF）增强水泥基材料的机械性能在很大程度上受到碳纤维与水泥基体之间界面性能的影响。使用氧化石墨烯（GO）的电泳沉积（EPD）方法可以改善这种界面结合。GO 在 CF 表面沉积的效率和质量与 EPD 参数直接相关。因此，本研究通过控制两个关键的 EPD 参数：电压（10 V、15 V、20 V）和时间（20 分钟、40 分钟、60 分钟），制备了 GO 电泳沉积 CF（GO/CF）。此外，还比较了经 EPD 处理的 GO/CF 与采用普通表面处理方法（硅烷化）制备的 3- 氨基丙基三乙氧基硅烷改性 CF（APS/CF）的增强效果。单纤维拉拔试验结果表明，在硅烷化和各种 EPD 处理样品中，GO/CF-15/60（在 15 V 条件下处理 60 分钟）与水泥基体的粘结性能最好。与未经处理的 CF 相比，GO/CF-15/60 与基体的粘结强度提高了 262%，而且比 APS/CF 高出 88.5%。这是因为在该 EPD 参数下，具有皱褶结构和含氧官能团的 GO 在 CF 表面形成了最佳的沉积形态和数量。这促进了更多的水合产物附着在 CF 表面，从而增加了与周围基质的致密性。在力学性能方面，当纤维含量为 0.5 Vol% 时，GO/CF-15/60 增强水泥浆在 28 d 时的抗折强度和抗压强度分别提高了 25.53% 和 5.25%。界面性能的改善促进了纤维与基体之间更好的载荷传递，有效抑制了周围微裂缝的扩展，从而获得更高的机械强度。将每种改性纤维的粘结强度与相应水泥浆的机械强度进行比较后发现，两者之间存在很强的正相关性。因此，通过控制 EPD 参数，可以实现 CF/基体的最佳界面性能，从而显著提高水泥基材料的机械性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.