دانشگاه مازندران

 آمار

تعداد نشریات32
تعداد شماره‌ها524
تعداد مقالات5,118
تعداد مشاهده مقاله7,839,264
تعداد دریافت فایل اصل مقاله5,827,551
Valizadeh Kiamahalleh, Mohammad, Khorshidi-Mianaei, Aref, Safari, Amin. (1405). Improvement of Recycled Concrete Aggregate Properties by Polyvinyl Alcohol. پژوهشنامه مدیریت اجرایی, 2(2), 49-59. doi: 10.22080/ceas.2025.30167.1046
Mohammad Valizadeh Kiamahalleh; Aref Khorshidi-Mianaei; Amin Safari. "Improvement of Recycled Concrete Aggregate Properties by Polyvinyl Alcohol". پژوهشنامه مدیریت اجرایی, 2, 2, 1405, 49-59. doi: 10.22080/ceas.2025.30167.1046
Valizadeh Kiamahalleh, Mohammad, Khorshidi-Mianaei, Aref, Safari, Amin. (1405). 'Improvement of Recycled Concrete Aggregate Properties by Polyvinyl Alcohol', پژوهشنامه مدیریت اجرایی, 2(2), pp. 49-59. doi: 10.22080/ceas.2025.30167.1046
Valizadeh Kiamahalleh, Mohammad, Khorshidi-Mianaei, Aref, Safari, Amin. Improvement of Recycled Concrete Aggregate Properties by Polyvinyl Alcohol. پژوهشنامه مدیریت اجرایی, 1405; 2(2): 49-59. doi: 10.22080/ceas.2025.30167.1046

Improvement of Recycled Concrete Aggregate Properties by Polyvinyl Alcohol

Civil Engineering and Applied Solutions
دوره 2، شماره 2، تیر 2026، صفحه 49-59    اصل مقاله (633.84 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22080/ceas.2025.30167.1046
نویسندگان
Mohammad Valizadeh Kiamahalleh* 1؛ Aref Khorshidi-Mianaei2؛ Amin Safari3
1College of Science and Engineering, Flinders University, SA, Australia
2Ghaem Technology Institute of Higher Education, Qaem Shahr, Mazandaran, Iran
3Quattro, Varsity Lakes, QLD 4227, Australia
تاریخ دریافت: 07 مهر 1404،  تاریخ بازنگری: 21 آبان 1404،  تاریخ پذیرش: 02 آذر 1404 
چکیده
This study examines liquid polyvinyl alcohol (PVA) impregnation of recycled concrete aggregate (RCA) to refine pore structure and evaluate its influence on the fresh and hardened properties of companion concretes, using natural aggregate concrete as the benchmark. Aggregates were pretreated at progressively higher PVA dosages and characterized for specific gravity, water absorption, and gradation, and concretes with untreated and PVA-treated RCA were assessed for slump, water absorption, compressive strength, and drying shrinkage. The investigation was intentionally designed for non-structural concrete applications such as paving blocks, curbs, and lightweight elements, where durability and sustainability are prioritized over high strength. Results indicated that increasing PVA dosage enhanced aggregate density and reduced water absorption at higher levels (10%), but also caused trade-offs in workability and mechanical strength. Workability improved at 6% PVA but declined at higher contents, while compressive strength decreased at 6–8% and partially recovered at 10%. Drying shrinkage increased slightly with PVA addition. Overall, PVA pretreatment improved aggregate densification and moisture resistance but required dosage optimization for practical use in durable, non-structural RCA concretes aimed at sustainable resource utilization.
کلیدواژه‌ها
Recycled concrete aggregate (RCA)؛ Polyvinyl alcohol (PVA)؛ Natural aggregate (NA)؛ Concrete
مراجع
  1. Islam, R., Nazifa, T. H., Yuniarto, A., Shanawaz Uddin, A. S. M., Salmiati, S., Shahid, S. An empirical study of construction and demolition waste generation and implication of recycling. Waste Management, 2019; 95: 10-21. doi:10.1016/j.wasman.2019.05.049.
  2. Tam, V. W. Y., Soomro, M., Evangelista, A. C. J. A review of recycled aggregate in concrete applications (2000–2017). Construction and Building Materials, 2018; 172: 272-292. doi:10.1016/j.conbuildmat.2018.03.240.
  3. Brito, J. d. S., Nabajyoti Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste. 1st ed. London (UK): Springer London; 2013. doi:10.1007/978-1-4471-4540-0.
  4. Nazari, A., Toufigh, V. Effects of elevated temperatures and re-curing on concrete containing rice husk ash. Construction and Building Materials, 2024; 439: 137277. doi:10.1016/j.conbuildmat.2024.137277.
  5. Zheng, Y., Zhang, Y., Zhang, P. Methods for improving the durability of recycled aggregate concrete: A review. Journal of Materials Research and Technology, 2021; 15: 6367-6386. doi:10.1016/j.jmrt.2021.11.085.
  6. Nematzadeh, M., Nazari, A., Tayebi, M. Post-fire impact behavior and durability of steel fiber-reinforced concrete containing blended cement–zeolite and recycled nylon granules as partial aggregate replacement. Archives of Civil and Mechanical Engineering, 2021; 22: 5. doi:10.1007/s43452-021-00324-1.
  7. Luo, S., Ye, S., Xiao, J., Zheng, J., Zhu, Y. Carbonated recycled coarse aggregate and uniaxial compressive stress-strain relation of recycled aggregate concrete. Construction and Building Materials, 2018; 188: 956-965. doi:10.1016/j.conbuildmat.2018.08.159.
  8. Xiao, J., Li, W., Poon, C. Recent studies on mechanical properties of recycled aggregate concrete in China—A review. Science China Technological Sciences, 2012; 55: 1463-1480. doi:10.1007/s11431-012-4786-9.
  9. Abedi Mavaramkolaei, S., Sayarinejad, M. A., Nazari, A., Rayati Damavandi, M. Investigating the fracture behavior and ductility of self-compacting concrete containing recycled nylon granules: An experimental and modeling study. Theoretical and Applied Fracture Mechanics, 2026; 141: 105254. doi:10.1016/j.tafmec.2025.105254.
  10. Farrokh Ghatte, H., Nazari, A. Prediction of Rice Husk Ash-Based SCC Compressive Strength: Data-Driven Framework. Civil Engineering and Applied Solutions, 2025; 1: 17-28. doi:10.22080/ceas.2025.29625.1025.
  11. Olorunsogo, F. T., Padayachee, N. Performance of recycled aggregate concrete monitored by durability indexes. Cement and Concrete Research, 2002; 32: 179-185. doi:10.1016/S0008-8846(01)00653-6.
  12. Kim, J.-H., Robertson, R. E. Prevention of air void formation in polymer-modified cement mortar by pre-wetting. Cement and Concrete Research, 1997; 27: 171-176. doi:10.1016/S0008-8846(97)00001-X.
  13. Allahverdi, A., Kianpur, K., Moghbeli, M. R. Effect of polyvinyl alcohol on flexural strength and some important physical properties of Portland cement paste. Iranian Journal of Materials Science and Engineering, 2010; 7: 1-6.
  14. Zongcai, D., Huiqing, X., Pengyuan, L. Flexural Toughness of Polyvinyl Alcohol (PVA) Fiber Reinforced Concrete Beams. South to North Water Transfers and Water Science & Technology, 2007; 5: 139-141.
  15. Noushini, A., Samali, B., Vessalas, K. Effect of polyvinyl alcohol (PVA) fibre on dynamic and material properties of fibre reinforced concrete. Construction and Building Materials, 2013; 49: 374-383. doi:10.1016/j.conbuildmat.2013.08.035.
  16. Georgiou, A. V., Pantazopoulou, S. J. Effect of fiber length and surface characteristics on the mechanical properties of cementitious composites. Construction and Building Materials, 2016; 125: 1216-1228. doi:10.1016/j.conbuildmat.2016.09.009.
  17. Xie, W., Chen, J., Chen, T., Guan, G. X. Workability and Mechanical Properties of PVA Fiber-Limestone Fine Cementitious Composite. Buildings, 2024; 14: 3679. doi:10.3390/buildings14113679.
  18. Wang, S., Zhu, B. Influence of Nano-SiO2 on the Mechanical Properties of Recycled Aggregate Concrete with and without Polyvinyl Alcohol (PVA) Fiber. Materials, 2021; 14: 1446. doi:10.3390/ma14061446.
  19. Yu, F., Xie, C., Fang, Y., Song, J., Xie, H., Zhang, S., Song, W. A Model for Predicting Crack Width of PVA Fiber-Reinforced Recycled Aggregate Concrete Slabs. KSCE Journal of Civil Engineering, 2024; 28: 5697-5714. doi:10.1007/s12205-024-0155-z.
  20. Kou, S.-C., Poon, C.-S. Properties of concrete prepared with PVA-impregnated recycled concrete aggregates. Cement and Concrete Composites, 2010; 32: 649-654. doi:10.1016/j.cemconcomp.2010.05.003.
آمار
تعداد مشاهده مقاله: 43
تعداد دریافت فایل اصل مقاله: 29


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب