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| Experimental investigation of accumulated plastic strain and critical dynamic stress of unbound aggregates recycled from construction and demolition waste |
| KONG Kunfeng1，CHEN Feng1，XIAO Yuanjie2，3，JIANG Yu2，Umar Faruk Aminu2，CHEN Yuliang4，LI Zhiyong4 |
(1. Railway Engineering Research Institute，China Academy of Railway Sciences Corporation Limited，Beijing 100081，China；
2. School of Civil Engineering，Central South University，Changsha，Hunan 410075，China；3. Ministry of Education(MOE) Key Laboratory of Engineering Structures of Heavy-haul Railway，Central South University，Changsha，Hunan 410075，
China；4. Hunan Communications Research Institute Co.，Ltd.，Changsha，Hunan 410015，China)
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Abstract Recycling construction and demolition waste(CDW) in the construction of transportation infrastructure can benefit from various environmental，economic and social aspects. The gradual accumulation of permanent deformation of the granular structural layer under traffic loading may lead to rutting，cracking，and other diseases of the pavement，thus reducing its service life. In this paper，the plastic deformation characteristics of coarse-grained soil filler recycled from CDW under different stress states were studied by repeated-load triaxial tests，and the influence law of particle breakage state on plastic deformation and critical dynamic stress was investigated by designing five different graduation specimens. The prediction models of accumulated plastic strain and critical dynamic stress were established based on the measured data，which can comprehensively consider the particle breakage state and stress level. The test results show that the axial accumulated strain of recycled aggregates gradually decreases with the increase of confining pressure or the decrease of dynamic stress amplitude；the increase of particle breakage weakens the ability of specimens to resist plastic deformation. The established accumulated plastic strain prediction model overcomes the dispersion of the parameters of the accumulated plastic strain calculation model under different gradation conditions. The empirical equation for the critical dynamic stress based on the shake-down theory provides a theoretical basis for the reasonable assessment of the dynamic stability of the recycled coarse-grained soil filler under the action of traffic load.
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[1] KELLY L. State DOT environmental and economic benefits of recycled material utilization in highway pavements[M. S. Thesis][D]. Wisconsin：University of Wisconsin-Madison，2016.
[2] SHI X，MUKHOPADHYAY A，D ZOLLINGER，et al. Economic input-output life cycle assessment of concrete pavement containing recycled concrete aggregate[J]. Journal of Cleaner Production，2019，225(JUL.10)：414–425.
[3] VIEIRA C S，PEREIRA P M. Use of recycled construction and demolition materials in geotechnical applications：A review[J]. Resources Conservation and Recycling，2015，103：192–204.
[4] BERNARDO M，GOMES M C，BRITO J D. Demolition waste generation for development of a regional management chain model[J]. Waste Manag，2016，49：156–169.
[5] 张军辉，丁 乐，张安顺. 建筑垃圾再生料在路基工程中的应用综述[J]. 中国公路学报，2021，34(10)：135–154.(ZHANG Junhui，DING Le，ZHANG Anshun. Application of recycled aggregates from construction and demolition waste in subgrade engineering：A review[J]. China Journal of Highway and Transport，2021，34(10)：135–154.(in Chinese))
[6] JAYAKODY S，GALLAGE C，RAMANUJAM J. Effects of reclaimed asphalt materials on geotechnical characteristics of recycled concrete aggregates as a pavement material[J]. Road Materials and Pavement Design，2017，20(4)：1–19.
[7] ARULRAJAH A，PIRATHEEPAN J，DISFANI M M. Reclaimed asphalt pavement and recycled concrete aggregate blends in pavement subbases：laboratory and field evaluation[J]. Journal of Materials in Civil Engineering，2014，26(2)：349–357.
[8] ZHANG J，GU F，ZHANG Y. Use of building-related construction and demolition wastes in highway embankment：Laboratory and field evaluations[J]. Journal of Cleaner Production，2019，230(SEP.1)： 1 051–1 060.
[9] CERNI G，CARDONE F，VIRGILI A，et al. Characterisation of permanent deformation behaviour of unbound granular materials under repeated triaxial loading[J]. Construction and Building Materials，2012，28(1)：79–87.
[10] CERNI G，CARDONE F，BOCCI M. Permanent deformation behaviour of unbound recycled mixtures[J]. Construction and Building Materials，2012，37：573–580.
[11] BENNERT T，PAPP W，MAHER A，et al. Utilization of construction and demolition debris under traffic-type loading in base and subbase applications[J]. Transportation Research Record，2000，1714(1)：33–39.
[12] ARULRAJAH A，PIRATHEEPAN J，AATHEESAN T，et al. Geotechnical properties of recycled crushed brick in pavement applications[J]. Journal of Materials in Civil Engineering，2011，23(10)：1 444–1 452.
[13] ARULRAJAH A，PIRATHEEPAN J，DISFANI M M，et al. Geotechnical and geoenvironmental properties of recycled construction and demolition materials in pavement subbase applications[J]. Journal of Materials in Civil Engineering，2013，25(8)：1 077–1 088.
[14] SHARP R. Shakedown analyses and the design of pavement under moving surface load[Ph. D. Thesis][D]. Sydney，Australia：University of Sydney，1983.
[15] WERKMEISTER S，DAWSON A R，WELLNER F. Permanent deformation behavior of granular materials and the shakedown concept[J]. Transportation Research Record Journal of the Transportation Research Board，2001，1757(1)：75–81.
[16] CHEN W B，FENG W Q，YIN J H，et al. Characterization of permanent axial strain of granular materials subjected to cyclic loading based on shakedown theory[J]. Construction and Building Materials，2018，198(FEB.20)：751–761.
[17] XIAO Y，ZHENG K，CHEN L，et al. Shakedown analysis of cyclic plastic deformation characteristics of unbound granular materials under moving wheel loads[J]. Construction and Building Materials，2018，167：457–472.
[18] 肖源杰，孔坤锋，姜 钰，等. 建筑固废再生粒料基层填料动回弹模量特性及统一预估模型研究[J]. 岩石力学与工程学报，2022，41(11)：2 337–2 352.(XIAO Yuanjie，KONG Kunfeng，JIANG Yu，et al. Investigating resilient modulus characteristics and developing unified prediction model of unbound aggregate base materials recycled from construction and demolition waste[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(11)：2 337–2 352.(in Chinese))
[19] FULLER W B. Proportioning concrete：A treatise on concrete，plain and reinforced[M]. New York：John Wiley，1905：183–215.
[20] 李国强，邓学钧. 集料的分形级配研究[J]. 重庆交通学院学报，1995，(2)：38–43.(LI Guoqiang，DENG Xuejun. On fractal gradation of aggregates[J]. Journal of Chongqing Jiaotong Institute，1995，(2)：38–43.(in Chinese))
[21] 张吉庆. 路用粒料类材料安定行为及路面结构安定性分析研究[博士学位论文][D]. 广州：华南理工大学，2012.(ZHANG Jiqing. Study on shakedown behavior of granular material used in pavement and shakedown analysis of pavement structures[Ph. D. Thesis][D]. Guangzhou：South China University of Technology，2012.(in Chinese))
[22] XIAO Y，TUTUMLUER E，MISHRA D. Performance evaluations of unbound aggregate permanent deformation models for various aggregate physical properties[J]. Transportation Research Record，2015，2525(1)：20–30.
[23] MONISMITH C L，OGAWA N，FREEME C R. Permanent deformation characteristics of subgrade soils due to repeated loading[J]. Transportation Research Record，1975，537：1–17.
[24] WERKMEISTER S. Permanent deformation behavior of unbound granular materials in pavement constructions[Ph. D. Thesis][D]. Dresden，Germany：University of Technology，2003.
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2023, Vol. 42 
