Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compression
Seawater sea-sand ultra-high-performance concrete (SSUHPC) is a promising construction material with outstanding durability and service performance in marine environments. Further researches are needed to explore its mechanical and damage properties. This study investigates acoustic emission (AE) ch...
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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/S2214509525000592 |
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| author | Tianyu Li Yangtao Li Tao Li Xiamin Hu Yuanhao Li Jie Liao Lidan Mei Yuying Hou Bokai Yang Jinlong Gu |
| author_facet | Tianyu Li Yangtao Li Tao Li Xiamin Hu Yuanhao Li Jie Liao Lidan Mei Yuying Hou Bokai Yang Jinlong Gu |
| author_sort | Tianyu Li |
| collection | DOAJ |
| description | Seawater sea-sand ultra-high-performance concrete (SSUHPC) is a promising construction material with outstanding durability and service performance in marine environments. Further researches are needed to explore its mechanical and damage properties. This study investigates acoustic emission (AE) characteristics and damage-failure process of SSUHPC and freshwater river-sand UHPC (FRUHPC) under uniaxial compression. SSUHPC and FRUHPC specimens have undergone five years of sulfate corrosion, and were subjected to uniaxial compression tests until failure occurs. Stress-strain monitoring, AE technique, and digital image correlation (DIC) were employed during the tests, and a damage model were proposed for analysis. Results show that evolutions of AE signals, cracks, and maximum horizontal strain of SSUHPC have similar characteristics: first slowly increases, and then exhibit exponential growth when approaching failure. The established damage model can well describe the damage evolution and mechanical behavior of UHPC during loading. The damage evolution is mainly caused by tensile cracks, and the final failure shows large shear cracks, pull-out of steel fibers, and aggregate dislocation. Horizontal strain field obtained by DIC analysis can effectively characterize the damage process. Potential cracks may be identified when stress is at about 0.4 compressive strength, and damage zones rapidly expand 3–4 s before failure. The maximum horizontal strain exceeds 0.04, and width of strain localized region is 20–40 mm. By contrast, FRUHPC has better internal integrity and uniformity, causing higher compressive strength, more stable AE signals, and less damage during loading process. This work can provide reference for damage and failure characteristics of UHPC related materials. |
| format | Article |
| id | doaj-art-46019c02ff3a45e2902af31a7d98d133 |
| 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-46019c02ff3a45e2902af31a7d98d1332025-01-22T05:41:54ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04260Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compressionTianyu Li0Yangtao Li1Tao Li2Xiamin Hu3Yuanhao Li4Jie Liao5Lidan Mei6Yuying Hou7Bokai Yang8Jinlong Gu9School of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, ChinaCollege of Civil Engineering, Nanjing Forestry University, Nanjing 210037, ChinaSchool of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, ChinaSchool of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, China; Corresponding author at: School of Civil Engineering, Sanjiang University, Nanjing 210012, China.School of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, ChinaSchool of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, ChinaSchool of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, ChinaSchool of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, ChinaNanjing Yangtze River Management Office, Nanjing 210016, ChinaSchool of Civil Engineering, Sanjiang University, Nanjing 210012, China; Jiangsu Engineering Research Center for Low Carbon Materials and Green Structures, Sanjiang University, Nanjing 210012, China; Jiangsu Vast New Material Technology Co., Ltd., Nantong 202158, ChinaSeawater sea-sand ultra-high-performance concrete (SSUHPC) is a promising construction material with outstanding durability and service performance in marine environments. Further researches are needed to explore its mechanical and damage properties. This study investigates acoustic emission (AE) characteristics and damage-failure process of SSUHPC and freshwater river-sand UHPC (FRUHPC) under uniaxial compression. SSUHPC and FRUHPC specimens have undergone five years of sulfate corrosion, and were subjected to uniaxial compression tests until failure occurs. Stress-strain monitoring, AE technique, and digital image correlation (DIC) were employed during the tests, and a damage model were proposed for analysis. Results show that evolutions of AE signals, cracks, and maximum horizontal strain of SSUHPC have similar characteristics: first slowly increases, and then exhibit exponential growth when approaching failure. The established damage model can well describe the damage evolution and mechanical behavior of UHPC during loading. The damage evolution is mainly caused by tensile cracks, and the final failure shows large shear cracks, pull-out of steel fibers, and aggregate dislocation. Horizontal strain field obtained by DIC analysis can effectively characterize the damage process. Potential cracks may be identified when stress is at about 0.4 compressive strength, and damage zones rapidly expand 3–4 s before failure. The maximum horizontal strain exceeds 0.04, and width of strain localized region is 20–40 mm. By contrast, FRUHPC has better internal integrity and uniformity, causing higher compressive strength, more stable AE signals, and less damage during loading process. This work can provide reference for damage and failure characteristics of UHPC related materials.http://www.sciencedirect.com/science/article/pii/S2214509525000592Ultra-high-performance concrete (UHPC)Seawater sea-sand ultra-high-performance concrete (SSUHPC)Acoustic emission (AE)Damage evolutionFailure patternDigital image correlation (DIC) |
| spellingShingle | Tianyu Li Yangtao Li Tao Li Xiamin Hu Yuanhao Li Jie Liao Lidan Mei Yuying Hou Bokai Yang Jinlong Gu Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compression Case Studies in Construction Materials Ultra-high-performance concrete (UHPC) Seawater sea-sand ultra-high-performance concrete (SSUHPC) Acoustic emission (AE) Damage evolution Failure pattern Digital image correlation (DIC) |
| title | Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compression |
| title_full | Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compression |
| title_fullStr | Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compression |
| title_full_unstemmed | Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compression |
| title_short | Experimental study on acoustic emission characteristics and damage-failure process of seawater sea-sand ultra-high-performance concrete under uniaxial compression |
| title_sort | experimental study on acoustic emission characteristics and damage failure process of seawater sea sand ultra high performance concrete under uniaxial compression |
| topic | Ultra-high-performance concrete (UHPC) Seawater sea-sand ultra-high-performance concrete (SSUHPC) Acoustic emission (AE) Damage evolution Failure pattern Digital image correlation (DIC) |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525000592 |
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