Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperatures
Self-sensing engineered cementitious composite (ECC) is inevitably susceptible to the effects of impact loads when it is applied to structural health monitoring. In this paper, the impact resistance of self-sensing ECC under varying temperatures was investigated by experiments. Specimens comprising...
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Elsevier
2024-12-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509524012294 |
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| author | Jinsheng Han Xinyu Shi Jinlong Pan Zhigang Song Peng Wang Jingming Cai Guohui Zhang |
| author_facet | Jinsheng Han Xinyu Shi Jinlong Pan Zhigang Song Peng Wang Jingming Cai Guohui Zhang |
| author_sort | Jinsheng Han |
| collection | DOAJ |
| description | Self-sensing engineered cementitious composite (ECC) is inevitably susceptible to the effects of impact loads when it is applied to structural health monitoring. In this paper, the impact resistance of self-sensing ECC under varying temperatures was investigated by experiments. Specimens comprising cement mortar, conventional ECC, and self-sensing ECC, all featuring identical water-binder ratios, were prepared and subjected to compressive and tensile strength evaluations, as well as tensile ductility measurements. Subsequently, the drop-weight impact tests were conducted on these three specimens at the temperatures of −50℃, −30℃, −10℃, 20℃, 50℃ and 100℃, respectively. Detailed analyses were carried out on the resulting impact loads, impact durations, dent depths, and failure modes. Our findings reveal that the compressive strength of cement mortar surpasses that of both conventional ECC and self-sensing ECC. Furthermore, conventional ECC and self-sensing ECC exhibit ultimate tensile strains of 4.6 % and 6.7 %, respectively. At the same drop-height of impactor, the maximum impact force decreases with the increase of temperature. At cold temperature, the specimen exhibit heightened impact forces coupled with abbreviated impact durations. Self-sensing ECC demonstrates a decreased maximum impact force and an extended duration compared to conventional ECC. The cement mortar specimen shows brittle failure, while both self-sensing ECC and conventional ECC align with the scabbing failure mode. Self-sensing ECC with a smaller scabbing thickness has preferable impact resistance and deformability. |
| format | Article |
| id | doaj-art-734e8ebfb2e049999d80e88f663d2b14 |
| institution | OA Journals |
| issn | 2214-5095 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
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| series | Case Studies in Construction Materials |
| spelling | doaj-art-734e8ebfb2e049999d80e88f663d2b142025-08-20T01:59:26ZengElsevierCase Studies in Construction Materials2214-50952024-12-0121e0407710.1016/j.cscm.2024.e04077Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperaturesJinsheng Han0Xinyu Shi1Jinlong Pan2Zhigang Song3Peng Wang4Jingming Cai5Guohui Zhang6Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Seismic Engineering Technology Research Center, Kunming University of Science and Technology, Kunming 650500, China; Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Nanjing 211189, ChinaFaculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Seismic Engineering Technology Research Center, Kunming University of Science and Technology, Kunming 650500, ChinaKey Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Nanjing 211189, China; Corresponding author.Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, China; Yunnan Seismic Engineering Technology Research Center, Kunming University of Science and Technology, Kunming 650500, China; Corresponding author at: Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, China.Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650500, ChinaKey Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Nanjing 211189, ChinaFaculty of Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaSelf-sensing engineered cementitious composite (ECC) is inevitably susceptible to the effects of impact loads when it is applied to structural health monitoring. In this paper, the impact resistance of self-sensing ECC under varying temperatures was investigated by experiments. Specimens comprising cement mortar, conventional ECC, and self-sensing ECC, all featuring identical water-binder ratios, were prepared and subjected to compressive and tensile strength evaluations, as well as tensile ductility measurements. Subsequently, the drop-weight impact tests were conducted on these three specimens at the temperatures of −50℃, −30℃, −10℃, 20℃, 50℃ and 100℃, respectively. Detailed analyses were carried out on the resulting impact loads, impact durations, dent depths, and failure modes. Our findings reveal that the compressive strength of cement mortar surpasses that of both conventional ECC and self-sensing ECC. Furthermore, conventional ECC and self-sensing ECC exhibit ultimate tensile strains of 4.6 % and 6.7 %, respectively. At the same drop-height of impactor, the maximum impact force decreases with the increase of temperature. At cold temperature, the specimen exhibit heightened impact forces coupled with abbreviated impact durations. Self-sensing ECC demonstrates a decreased maximum impact force and an extended duration compared to conventional ECC. The cement mortar specimen shows brittle failure, while both self-sensing ECC and conventional ECC align with the scabbing failure mode. Self-sensing ECC with a smaller scabbing thickness has preferable impact resistance and deformability.http://www.sciencedirect.com/science/article/pii/S2214509524012294Self-sensing ECCImpact resistanceTemperatureFailure mode |
| spellingShingle | Jinsheng Han Xinyu Shi Jinlong Pan Zhigang Song Peng Wang Jingming Cai Guohui Zhang Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperatures Case Studies in Construction Materials Self-sensing ECC Impact resistance Temperature Failure mode |
| title | Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperatures |
| title_full | Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperatures |
| title_fullStr | Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperatures |
| title_full_unstemmed | Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperatures |
| title_short | Impact resistance of self-sensing engineered cementitious composite (ECC) under different temperatures |
| title_sort | impact resistance of self sensing engineered cementitious composite ecc under different temperatures |
| topic | Self-sensing ECC Impact resistance Temperature Failure mode |
| url | http://www.sciencedirect.com/science/article/pii/S2214509524012294 |
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