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Permanent Deformation and Breakage Response of Recycled Concrete Aggregates under Cyclic Loading Subject to Moisture Change

Author

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  • Syed Kamran Hussain Shah

    (Graduate School of Science and Engineering, Saitama University, Saitama 3388570, Japan
    Department of Civil Engineering, HITEC University, Museum Road, Taxila Cantt., Taxila 47080, Pakistan)

  • Taro Uchimura

    (Graduate School of Science and Engineering, Saitama University, Saitama 3388570, Japan)

  • Ken Kawamoto

    (Graduate School of Science and Engineering, Saitama University, Saitama 3388570, Japan
    Innovative Solid Waste Solutions (Waso), Hanoi University of Civil Engineering, Hanoi 11616, Vietnam)

Abstract

Natural granular materials widely used in building and infrastructure development consume a considerable number of natural resources. To avoid depleting natural granular materials, recycled concrete aggregates (RCA) from construction and demolition waste are now commonly used as an alternative. The mechanical behavior of RCA used in road construction is highly influenced by field conditions such as traffic load and moisture variation. The particle breakage of RCA influences long-term pavement performance because it changes the RCA grading over time. However, the effect of moisture content ( m.c .) on mechanical behavior and particle breakage during compaction and cyclic loading is often neglected. The aims of the study were to investigate the mechanism of permanent deformation development due to moisture change, the breakage response of RCA in this process, and the assessment of existing permanent deformation prediction model. The results showed that initial m.c. effectively controlled the deformation of RCA; the permanent axial strain ( ε pa ) was enhanced, and the breakage of coarse fraction (19~9.5 mm) under cyclic loading was reduced at higher levels of m.c. Based on the experimental results, a modified model for predicting ε pa was proposed, incorporating a deviation factor induced by m.c. The model fitted the experimental data well, suggesting that it is useful to have a quantitative estimation of ε pa of RCA with different m.c. under cyclic loading.

Suggested Citation

  • Syed Kamran Hussain Shah & Taro Uchimura & Ken Kawamoto, 2022. "Permanent Deformation and Breakage Response of Recycled Concrete Aggregates under Cyclic Loading Subject to Moisture Change," Sustainability, MDPI, vol. 14(9), pages 1-17, April.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:9:p:5427-:d:806589
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    References listed on IDEAS

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    1. Evelio Teijón-López-Zuazo & Ángel Vega-Zamanillo & Miguel Ángel Calzada-Pérez & Ángel Robles-Miguel, 2020. "Use of Recycled Aggregates Made from Construction and Demolition Waste in Sustainable Road Base Layers," Sustainability, MDPI, vol. 12(16), pages 1-14, August.
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    Cited by:

    1. Xiaoya Bian & Haodong Yang & Jiale Chen & Hui Liu & Xuyong Chen, 2022. "Experimental Study on the Strength and Stress–Strain Properties of Waste Concrete Fine Aggregate and Cement-Solidified Sludge," Sustainability, MDPI, vol. 14(19), pages 1-16, September.

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