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Evaluating the creep characteristics of recycled construction waste materials under saturated and dry condition

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Abstract

The creep deformation characteristics of recycled construction and demolition waste (CDW) filler are important factors affecting its road performance. In this paper, a series of laboratory tests are carried out on CDW filler, including gradation test, compaction test, California bearing ratio (CBR) test, and creep test, and the road performance of different ratios of recycled CDW filler is systematically studied. The mechanical properties of different ratios of CDW materials can meet the requirements of subgrade filler in the specification. Through the creep test, it can be seen that the elastic-plastic deformation speed of CDW material is fast and the duration is short. The creep deformation stage is opposite. Combined with the theoretical analysis, it is found that the t/ε-t curve under each stress level has a good linear relationship. The relationship between strain and time is hyperbolic, and the relationship between parameters A, B, and load is a power function. The creep process belongs to attenuation creep, which conforms to the Kelvin model.

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Acknowledgements

The authors are grateful for the financial and technical support provided by the Construction Project of Ministry of Transportation (2013318J-16490). Many thanks to the anonymous reviewers for the comprehensive and detailed comments in both the grammatical errors and the technical issues.

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Correspondence to Zhe Li.

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Responsible Editor: Zeynal Abiddin Erguler

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Li, Z., Yang, J., Liu, L. et al. Evaluating the creep characteristics of recycled construction waste materials under saturated and dry condition. Arab J Geosci 14, 153 (2021). https://doi.org/10.1007/s12517-021-06545-1

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  • DOI: https://doi.org/10.1007/s12517-021-06545-1

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