Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strength
This paper presents a novel smeared fiber-matrix pullout strength model for predicting the mechanical properties of steel fiber-reinforced concrete (SFRC). The model, developed within the fiber bridging stress framework, uniquely accounts for various fiber types (straight, hooked-end, and twisted) a...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525000415 |
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| author | Yuxin Xu Tengfei Xu Guilin Li Tianyu Xie |
| author_facet | Yuxin Xu Tengfei Xu Guilin Li Tianyu Xie |
| author_sort | Yuxin Xu |
| collection | DOAJ |
| description | This paper presents a novel smeared fiber-matrix pullout strength model for predicting the mechanical properties of steel fiber-reinforced concrete (SFRC). The model, developed within the fiber bridging stress framework, uniquely accounts for various fiber types (straight, hooked-end, and twisted) and their interaction with the cementitious matrix. The approach integrates critical factors including fiber orientation, embedment length, and matrix strength to provide a comprehensive understanding of the fiber bridging mechanism. Based on a database of 965 single-fiber pullout tests, formulas were we derived for predicting both tensile and compressive strengths of SFRC with single or hybrid steel fiber configurations. The model’s effectiveness is validated using separate databases containing 321 tensile and 1595 compressive strength test results across a wide range of concrete strengths (16.7–262 MPa). The model demonstrates adequate predictive capability, particularly for straight and hooked-end fibers, while showing some limitations for twisted fibers and fiber volume fractions above 3 %. This physically-significant approach not only provides a reliable tool for designing and optimizing SFRC materials but also offers new insights into the mechanisms of fiber reinforcement in concrete. |
| format | Article |
| id | doaj-art-fb5f975c470545669fc1d63c31ffb4c7 |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-fb5f975c470545669fc1d63c31ffb4c72025-01-19T06:25:02ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04242Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strengthYuxin Xu0Tengfei Xu1Guilin Li2Tianyu Xie3Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaDepartment of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; State Key Laboratory of Bridge Intelligent and Green Construction, Southwest Jiaotong University, Chengdu, Sichuan 611756, China; Corresponding author at: Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China.Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering, Southeast University, Nanjing 210000, China; Corresponding author.This paper presents a novel smeared fiber-matrix pullout strength model for predicting the mechanical properties of steel fiber-reinforced concrete (SFRC). The model, developed within the fiber bridging stress framework, uniquely accounts for various fiber types (straight, hooked-end, and twisted) and their interaction with the cementitious matrix. The approach integrates critical factors including fiber orientation, embedment length, and matrix strength to provide a comprehensive understanding of the fiber bridging mechanism. Based on a database of 965 single-fiber pullout tests, formulas were we derived for predicting both tensile and compressive strengths of SFRC with single or hybrid steel fiber configurations. The model’s effectiveness is validated using separate databases containing 321 tensile and 1595 compressive strength test results across a wide range of concrete strengths (16.7–262 MPa). The model demonstrates adequate predictive capability, particularly for straight and hooked-end fibers, while showing some limitations for twisted fibers and fiber volume fractions above 3 %. This physically-significant approach not only provides a reliable tool for designing and optimizing SFRC materials but also offers new insights into the mechanisms of fiber reinforcement in concrete.http://www.sciencedirect.com/science/article/pii/S2214509525000415SFRCPulloutBridging forceTensile strengthCompressive strength |
| spellingShingle | Yuxin Xu Tengfei Xu Guilin Li Tianyu Xie Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strength Case Studies in Construction Materials SFRC Pullout Bridging force Tensile strength Compressive strength |
| title | Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strength |
| title_full | Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strength |
| title_fullStr | Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strength |
| title_full_unstemmed | Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strength |
| title_short | Modeling smeared fiber-matrix pullout strength of steel fiber-reinforced concrete with various types of steel fiber and its tensile and compressive strength |
| title_sort | modeling smeared fiber matrix pullout strength of steel fiber reinforced concrete with various types of steel fiber and its tensile and compressive strength |
| topic | SFRC Pullout Bridging force Tensile strength Compressive strength |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525000415 |
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