硬化水泥浆中电诱导的温差和变形

IF 10.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Cement and Concrete Research Pub Date : 2006-12-01 DOI:10.1016/j.cemconres.2006.09.019

Mingqing Sun, Xiaoying Wang, Kairui Zhao, Zhuoqiu Li

{"title":"硬化水泥浆中电诱导的温差和变形","authors":"Mingqing Sun, Xiaoying Wang, Kairui Zhao, Zhuoqiu Li","doi":"10.1016/j.cemconres.2006.09.019","DOIUrl":null,"url":null,"abstract":"<div><p>Electromechanical effect of hardened cement paste<span> beam is investigated in this paper. When an external electrical current is applied to the electrodes attached to opposite surfaces of a cement beam, it is found that temperature on the positive electrode<span> is always higher than that on the negative electrode<span>. The sign of electrically induced temperature difference is determined by the direction of applied electrical current. Electrically induced temperature difference makes the beam bend towards the surface with a higher temperature. Both electrically induced temperature difference and electroosmosis lead to electromechanical effect of hardened cement paste. Finally, electromechanical effect becomes more obvious by adding NaCl to cement paste.</span></span></span></p></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"36 12","pages":"Pages 2164-2168"},"PeriodicalIF":10.9000,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cemconres.2006.09.019","citationCount":"5","resultStr":"{\"title\":\"Electrically induced temperature difference and deformation in hardened cement pastes\",\"authors\":\"Mingqing Sun, Xiaoying Wang, Kairui Zhao, Zhuoqiu Li\",\"doi\":\"10.1016/j.cemconres.2006.09.019\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Electromechanical effect of hardened cement paste<span> beam is investigated in this paper. When an external electrical current is applied to the electrodes attached to opposite surfaces of a cement beam, it is found that temperature on the positive electrode<span> is always higher than that on the negative electrode<span>. The sign of electrically induced temperature difference is determined by the direction of applied electrical current. Electrically induced temperature difference makes the beam bend towards the surface with a higher temperature. Both electrically induced temperature difference and electroosmosis lead to electromechanical effect of hardened cement paste. Finally, electromechanical effect becomes more obvious by adding NaCl to cement paste.</span></span></span></p></div>\",\"PeriodicalId\":266,\"journal\":{\"name\":\"Cement and Concrete Research\",\"volume\":\"36 12\",\"pages\":\"Pages 2164-2168\"},\"PeriodicalIF\":10.9000,\"publicationDate\":\"2006-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.cemconres.2006.09.019\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cement and Concrete Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0008884606002419\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cement and Concrete Research","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0008884606002419","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: 5

摘要

研究了硬化水泥浆梁的机电效应。当外加电流作用于水泥梁相对表面的电极时，发现正极的温度总是高于负极的温度。电致温差的符号是由施加电流的方向决定的。电诱导的温差使光束向温度较高的表面弯曲。电致温差和电渗透作用共同导致水泥硬化体的机电效应。最后，在水泥浆体中加入NaCl，机电效应更加明显。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Electrically induced temperature difference and deformation in hardened cement pastes

Electromechanical effect of hardened cement paste beam is investigated in this paper. When an external electrical current is applied to the electrodes attached to opposite surfaces of a cement beam, it is found that temperature on the positive electrode is always higher than that on the negative electrode. The sign of electrically induced temperature difference is determined by the direction of applied electrical current. Electrically induced temperature difference makes the beam bend towards the surface with a higher temperature. Both electrically induced temperature difference and electroosmosis lead to electromechanical effect of hardened cement paste. Finally, electromechanical effect becomes more obvious by adding NaCl to cement paste.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Cement and Concrete Research 工程技术-材料科学：综合

CiteScore

20.90

自引率

12.30%

发文量

318

审稿时长

53 days

期刊介绍： Cement and Concrete Research is dedicated to publishing top-notch research on the materials science and engineering of cement, cement composites, mortars, concrete, and related materials incorporating cement or other mineral binders. The journal prioritizes reporting significant findings in research on the properties and performance of cementitious materials. It also covers novel experimental techniques, the latest analytical and modeling methods, examination and diagnosis of actual cement and concrete structures, and the exploration of potential improvements in materials.