T. Ngo, Quang-Huy Le, Duy‐Liem Nguyen, Dong Joo Kim, Ngoc-Thanh Tran
{"title":"Experiments and prediction of direct tensile resistance of strain hardening fiber-reinforced concrete","authors":"T. Ngo, Quang-Huy Le, Duy‐Liem Nguyen, Dong Joo Kim, Ngoc-Thanh Tran","doi":"10.1680/jmacr.22.00060","DOIUrl":null,"url":null,"abstract":"This study investigates and predicts the direct tensile resistance of strain hardening steel fiber-reinforced concrete (SHSFRC). Three steel fiber types, namely, twisted, hooked, and smooth fibers, and three matrices with different compressive strengths of 28 MPa (M1), 84 MPa (M2), and 180 MPa (M3) were investigated in both single fiber pullout tests and direct tensile tests. In addition, a machine learning-based model was developed to predict the tensile resistance of SHSFRC. The experimental results showed that twisted fibers exhibited not only the highest pullout resistance but also the greatest tensile resistance in M1 and M2, whereas smooth fibers achieved the same results in M3. From the predicting outcomes, the proposed model achieved high efficiency and accuracy in estimating the tensile resistance of SHSFRC, with a correlation coefficient of 0.951.","PeriodicalId":18113,"journal":{"name":"Magazine of Concrete Research","volume":" ","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Magazine of Concrete Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jmacr.22.00060","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}
引用次数: 1
Abstract
This study investigates and predicts the direct tensile resistance of strain hardening steel fiber-reinforced concrete (SHSFRC). Three steel fiber types, namely, twisted, hooked, and smooth fibers, and three matrices with different compressive strengths of 28 MPa (M1), 84 MPa (M2), and 180 MPa (M3) were investigated in both single fiber pullout tests and direct tensile tests. In addition, a machine learning-based model was developed to predict the tensile resistance of SHSFRC. The experimental results showed that twisted fibers exhibited not only the highest pullout resistance but also the greatest tensile resistance in M1 and M2, whereas smooth fibers achieved the same results in M3. From the predicting outcomes, the proposed model achieved high efficiency and accuracy in estimating the tensile resistance of SHSFRC, with a correlation coefficient of 0.951.
期刊介绍：
For concrete and other cementitious derivatives to be developed further, we need to understand the use of alternative hydraulically active materials used in combination with plain Portland Cement, sustainability and durability issues. Both fundamental and best practice issues need to be addressed.
Magazine of Concrete Research covers every aspect of concrete manufacture and behaviour from performance and evaluation of constituent materials to mix design, testing, durability, structural analysis and composite construction.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
