Academic Journal
Mechanical properties of multi-recycled aggregate concrete under combined compression and shear
| العنوان: | Mechanical properties of multi-recycled aggregate concrete under combined compression and shear |
|---|---|
| المؤلفون: | Lei, Bin, Yu, Hongchen, Guo, Yipu, Zhao, Hanbing, Wang, Kejin, Li, Wengui |
| المساهمون: | Civil, Construction and Environmental Engineering |
| المصدر: | https://doi.org/10.1016/j.engfailanal.2022.106910. |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2022 |
| المجموعة: | Digital Repository @ Iowa State University |
| مصطلحات موضوعية: | DegreeDisciplines::Engineering::Engineering Science and Materials::Mechanics of Materials, DegreeDisciplines::Engineering::Civil and Environmental Engineering, Recycled coarse aggregate (RCA), Multi-recycled aggregate concrete (Multi-RAC), Regeneration cycle, Compression-shear combined stress, Strength failure criterion |
| الوصف: | The mechanical properties and strength failure criteria of natural aggregate concrete and multi-recycled aggregate concrete (multi-RAC) under combined compression and shear loading states are investigated in this study. The peak shear strength, peak shear displacement, and failure patterns are compared under different regeneration cycles and normal compressive stress ratios. The results reveal that both the peak shear strength and peak shear displacement increase with the increased normal stress ratio. The shear failure pattern with higher severity corresponds to more spalling powder and debris deposited on the shear fracture surface. When the regeneration cycles of coarse aggregate increase, the peak shear strength decreases and the descending trend become more evident with the higher vertical compressive stress ratio, whereas the peak shear displacement significantly fluctuates, regardless of the regeneration cycles and normal compressive stress ratios. Under the normal compressive stress, contact friction strength is the dominant component of peak shear strength in terms of cohesive strength, contact friction strength, and shear dilation strength. Based on different stress expressions, three compression-shear failure criterion models considering the regeneration cycles of coarse aggregate under planar stress state were established for RAC. The stress invariance failure criterion model and octahedral stress failure criterion model in quadratic parabolic functional forms can provide the high prediction accuracies. ; This is a manuscript of an article published as Lei, Bin, Hongchen Yu, Yipu Guo, Hanbing Zhao, Kejin Wang, and Wengui Li. "Mechanical properties of multi-recycled aggregate concrete under combined compression and shear." Engineering Failure Analysis 143, Part A (2023): 106910. DOI:10.1016/j.engfailanal.2022.106910. Copyright 2022 Elsevier Ltd. Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0). Posted with permission. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://dr.lib.iastate.edu/handle/20.500.12876/3wxakm2v |
| الاتاحة: | https://dr.lib.iastate.edu/handle/20.500.12876/3wxakm2v https://hdl.handle.net/20.500.12876/3wxakm2v |
| رقم الانضمام: | edsbas.4B57A6EF |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |