{"title":"利用补充材料和碳化固化提高水泥传感器的压阻系数","authors":"Daeik Jang, Jinho Bang, Haemin Jeon","doi":"10.1680/jadcr.23.00202","DOIUrl":null,"url":null,"abstract":"This study explores the fabrication of cement-based sensors blended with supplementary cementitious materials (SCM) using carbonation curing. The effects of SCM types (i.e. fly ash or slag) and curing conditions on CO2 uptake degree, compressive strength, electrical conductivity, and piezoresistive sensing capability were systematically examined. The results indicate that the inclusion of fly ash or slag enhances CO2 uptake degree. However, it is also found that the excessive carbonation curing negatively affects compressive strength. Electrical resistivity is increased after carbonation curing due to carbonation-induced hydrate formation disrupting CNT-based conductive networks. The piezoresistive sensing capability is influenced by binder types and curing conditions, with higher sensitivity observed in samples blended with fly ash.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancing piezoresistivity of cement sensor with supplementary materials and carbonation curing\",\"authors\":\"Daeik Jang, Jinho Bang, Haemin Jeon\",\"doi\":\"10.1680/jadcr.23.00202\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study explores the fabrication of cement-based sensors blended with supplementary cementitious materials (SCM) using carbonation curing. The effects of SCM types (i.e. fly ash or slag) and curing conditions on CO2 uptake degree, compressive strength, electrical conductivity, and piezoresistive sensing capability were systematically examined. The results indicate that the inclusion of fly ash or slag enhances CO2 uptake degree. However, it is also found that the excessive carbonation curing negatively affects compressive strength. Electrical resistivity is increased after carbonation curing due to carbonation-induced hydrate formation disrupting CNT-based conductive networks. The piezoresistive sensing capability is influenced by binder types and curing conditions, with higher sensitivity observed in samples blended with fly ash.\",\"PeriodicalId\":7299,\"journal\":{\"name\":\"Advances in Cement Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2024-02-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Cement Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1680/jadcr.23.00202\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Cement Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jadcr.23.00202","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
Enhancing piezoresistivity of cement sensor with supplementary materials and carbonation curing
This study explores the fabrication of cement-based sensors blended with supplementary cementitious materials (SCM) using carbonation curing. The effects of SCM types (i.e. fly ash or slag) and curing conditions on CO2 uptake degree, compressive strength, electrical conductivity, and piezoresistive sensing capability were systematically examined. The results indicate that the inclusion of fly ash or slag enhances CO2 uptake degree. However, it is also found that the excessive carbonation curing negatively affects compressive strength. Electrical resistivity is increased after carbonation curing due to carbonation-induced hydrate formation disrupting CNT-based conductive networks. The piezoresistive sensing capability is influenced by binder types and curing conditions, with higher sensitivity observed in samples blended with fly ash.
期刊介绍:
Advances in Cement Research highlights the scientific ideas and innovations within the cutting-edge cement manufacture industry. It is a global journal with a scope encompassing cement manufacture and materials, properties and durability of cementitious materials and systems, hydration, interaction of cement with other materials, analysis and testing, special cements and applications.