A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiber
Self-sensing cementitious material attracted extensive attention in non-destructive testing (NDT) of construction. Developing a self-sensing high-strength grout (SHSG) has a great competition in NDT of prefabricated-construction connection. However, current literature lack comprehensive details rega...
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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/S2214509525000701 |
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| author | Yubo Li Dingchao Hu Xingyang He Ying Su Wuyi Lei Yingbin Wang Jin Yang Yuxue Zhu |
| author_facet | Yubo Li Dingchao Hu Xingyang He Ying Su Wuyi Lei Yingbin Wang Jin Yang Yuxue Zhu |
| author_sort | Yubo Li |
| collection | DOAJ |
| description | Self-sensing cementitious material attracted extensive attention in non-destructive testing (NDT) of construction. Developing a self-sensing high-strength grout (SHSG) has a great competition in NDT of prefabricated-construction connection. However, current literature lack comprehensive details regarding its preparation and properties. This study systematically evaluate the hybrid effects of carbon black (CB) and micro steel fiber (MSF), two cheap fillers, on the properties and sensing capacity of grout. The results revealed that the maximum permissible limit of 0.4 vol% CB and 0.1 vol% MSF + 0.4 vol% CB is proposed for necessary fluidity and expansion demand for given 0.24 w/b ratio. The introduction of those fillers enhanced the compressive and flexural strength by 14.0–16.0 %, while also significantly improving electrical conductivity and stress sensitivity. The maximum fractional change in resistance (FCR) of 33.68 % under 18.75 MPa is observed. A SHSG is of ideal stress sensitivity and an acceptable fluidity and expansion rate is developed, which is expected to contribute to the future development of NDT of prefabricated construction. |
| format | Article |
| id | doaj-art-19b6b8c5f1e7400b91b7055ffe5d2d0f |
| 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-19b6b8c5f1e7400b91b7055ffe5d2d0f2025-02-07T04:47:33ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04271A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiberYubo Li0Dingchao Hu1Xingyang He2Ying Su3Wuyi Lei4Yingbin Wang5Jin Yang6Yuxue Zhu7School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR China; Building Waterproof Engineering and Technology Research Center of Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; Key Laboratory of Intelligent Health Perception and Ecological Restoration of Rivers and Lakes, Ministry of Education, Hubei University of Technology, Wuhan 430068, PR ChinaSchool of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR ChinaSchool of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR China; Building Waterproof Engineering and Technology Research Center of Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; Key Laboratory of Intelligent Health Perception and Ecological Restoration of Rivers and Lakes, Ministry of Education, Hubei University of Technology, Wuhan 430068, PR China; Corresponding author at: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR China.School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR China; Building Waterproof Engineering and Technology Research Center of Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; Key Laboratory of Intelligent Health Perception and Ecological Restoration of Rivers and Lakes, Ministry of Education, Hubei University of Technology, Wuhan 430068, PR ChinaSchool of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR ChinaSchool of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR China; Building Waterproof Engineering and Technology Research Center of Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; Key Laboratory of Intelligent Health Perception and Ecological Restoration of Rivers and Lakes, Ministry of Education, Hubei University of Technology, Wuhan 430068, PR ChinaSchool of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430070, PR China; Building Waterproof Engineering and Technology Research Center of Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; Key Laboratory of Intelligent Health Perception and Ecological Restoration of Rivers and Lakes, Ministry of Education, Hubei University of Technology, Wuhan 430068, PR ChinaChina Building Materials Zhong Yan Technology Co., Ltd, Beijing 100024, PR ChinaSelf-sensing cementitious material attracted extensive attention in non-destructive testing (NDT) of construction. Developing a self-sensing high-strength grout (SHSG) has a great competition in NDT of prefabricated-construction connection. However, current literature lack comprehensive details regarding its preparation and properties. This study systematically evaluate the hybrid effects of carbon black (CB) and micro steel fiber (MSF), two cheap fillers, on the properties and sensing capacity of grout. The results revealed that the maximum permissible limit of 0.4 vol% CB and 0.1 vol% MSF + 0.4 vol% CB is proposed for necessary fluidity and expansion demand for given 0.24 w/b ratio. The introduction of those fillers enhanced the compressive and flexural strength by 14.0–16.0 %, while also significantly improving electrical conductivity and stress sensitivity. The maximum fractional change in resistance (FCR) of 33.68 % under 18.75 MPa is observed. A SHSG is of ideal stress sensitivity and an acceptable fluidity and expansion rate is developed, which is expected to contribute to the future development of NDT of prefabricated construction.http://www.sciencedirect.com/science/article/pii/S2214509525000701Self-sensing high strength groutCarbon blackMicro steel fiberElectrical conductivityStress sensitivity |
| spellingShingle | Yubo Li Dingchao Hu Xingyang He Ying Su Wuyi Lei Yingbin Wang Jin Yang Yuxue Zhu A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiber Case Studies in Construction Materials Self-sensing high strength grout Carbon black Micro steel fiber Electrical conductivity Stress sensitivity |
| title | A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiber |
| title_full | A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiber |
| title_fullStr | A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiber |
| title_full_unstemmed | A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiber |
| title_short | A self-sensing high strength grout used in prefabricated construction: The hybrid effects of carbon black and micro steel fiber |
| title_sort | self sensing high strength grout used in prefabricated construction the hybrid effects of carbon black and micro steel fiber |
| topic | Self-sensing high strength grout Carbon black Micro steel fiber Electrical conductivity Stress sensitivity |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525000701 |
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