Grafting SiO2 layer on CaCO3 whisker to enhance the mechanical properties with oil well cement

IF 7.4 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Bojian Zhang , Ying Xiong , Shuang Liu , Xianbing Wang , Haibing Yan
{"title":"Grafting SiO2 layer on CaCO3 whisker to enhance the mechanical properties with oil well cement","authors":"Bojian Zhang ,&nbsp;Ying Xiong ,&nbsp;Shuang Liu ,&nbsp;Xianbing Wang ,&nbsp;Haibing Yan","doi":"10.1016/j.conbuildmat.2024.139174","DOIUrl":null,"url":null,"abstract":"<div><div>The efficacy of cement matrix mechanical properties is significantly influenced by the strength of interfacial bonding between reinforcement material and cement. In this investigation, we explored the enhancement of CaCO<sub>3</sub> whisker reinforced cement via the grafting of a SiO<sub>2</sub> layer onto the CaCO<sub>3</sub> whisker surface using the condensation and polymerization of ethyl orthosilicate (TEOS). Characterization of the CaCO<sub>3</sub>@SiO<sub>2</sub> whisker structure and surface micro-topography was conducted utilizing FTIR, XPS, AFM, and SEM techniques. Furthermore, the impact of CaCO<sub>3</sub>@SiO<sub>2</sub> whisker on the mechanical properties of the cement matrix was examined, and the mechanism underlying the reinforcement of the cement matrix by CaCO<sub>3</sub>@SiO<sub>2</sub> whisker, along with the micro-scale interfacial structure between CaCO<sub>3</sub> whisker and cement matrix, was elucidated through SEM, EDS, and BSEM analyses. The findings revealed that the SiO<sub>2</sub> layer grafted on CaCO<sub>3</sub> whisker facilitated a reaction with Ca(OH)<sub>2</sub>, resulting in the generation of additional cement hydration products, and tightly enveloping the CaCO<sub>3</sub> whisker with hydration products. The crosslinking action of silicate chains led to the formation of a denser adhesion and stronger interfacial bonding between CaCO<sub>3</sub> whisker and cementitious matrix, thereby enhancing the mechanical properties of the cement containing CaCO<sub>3</sub>@SiO<sub>2</sub> whisker.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"456 ","pages":"Article 139174"},"PeriodicalIF":7.4000,"publicationDate":"2024-11-26","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/S0950061824043162","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 efficacy of cement matrix mechanical properties is significantly influenced by the strength of interfacial bonding between reinforcement material and cement. In this investigation, we explored the enhancement of CaCO3 whisker reinforced cement via the grafting of a SiO2 layer onto the CaCO3 whisker surface using the condensation and polymerization of ethyl orthosilicate (TEOS). Characterization of the CaCO3@SiO2 whisker structure and surface micro-topography was conducted utilizing FTIR, XPS, AFM, and SEM techniques. Furthermore, the impact of CaCO3@SiO2 whisker on the mechanical properties of the cement matrix was examined, and the mechanism underlying the reinforcement of the cement matrix by CaCO3@SiO2 whisker, along with the micro-scale interfacial structure between CaCO3 whisker and cement matrix, was elucidated through SEM, EDS, and BSEM analyses. The findings revealed that the SiO2 layer grafted on CaCO3 whisker facilitated a reaction with Ca(OH)2, resulting in the generation of additional cement hydration products, and tightly enveloping the CaCO3 whisker with hydration products. The crosslinking action of silicate chains led to the formation of a denser adhesion and stronger interfacial bonding between CaCO3 whisker and cementitious matrix, thereby enhancing the mechanical properties of the cement containing CaCO3@SiO2 whisker.
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
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.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信