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Punching shear behavior of recycled aggregate concrete slabs with and without steel fibres

Jianzhuang XIAO, Wan WANG, Zhengjiu ZHOU, Mathews M. TAWANA

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 725-740 doi: 10.1007/s11709-018-0510-6

Abstract: A study on the punching shear behavior of 8 slabs with recycled aggregate concrete (RAC) was carriedThe two main factors considered were the recycled coarse aggregate (RCA) replacement percentage and the

Keywords： recycled aggregate concrete     steel fibres     slab     punching shear     recycled coarse aggregates replacement percentage    

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Long term performance of recycled concrete beams with different water–cement ratio and recycled aggregate

Jingwei YING; Feiming SU; Shuangren CHEN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 302-315 doi: 10.1007/s11709-022-0803-7

Abstract: The purpose of this study is to reveal the service performance of recycled aggregate concrete (RAC) componentsfor different values of water−cement ratio and replacement rate of recycled coarse aggregate (RCA).Generally, the concrete strength decreases with the increase of the replacement rate of RCA, in orderResults showed that the damage pattern of RAC was the same as that of natural aggregate concrete (NACThe brittleness of concrete before failure can be reduced more effectively by adjusting the replacement

Keywords： recycled concrete     beam     the replacement rate of recycled coarse aggregate     water–cement ratio     digital    

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Comments on “Prediction on CO uptake of recycled aggregate concrete”, Frontiers of Structural and Civil

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1504-1506 doi: 10.1007/s11709-021-0782-0

Abstract: A methodology to compute the CO2 uptake of recycled aggregate concrete is proposed in thetypos in several formulas, it is found that the approach to estimate the specific surface area of the recycledfindings of the commented paper, an alternative approach to estimate the specific surface area of the recycled
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Chloride ingress and macro-cell corrosion of steel in concrete made with recycled brick aggregate

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1358-1371 doi: 10.1007/s11709-021-0769-x

Abstract: An investigation on chloride ingress and macro-cell corrosion of steel bars in concrete made with recycledbrick aggregate (RBA) was carried out.As control cases, virgin brick aggregate (BA) and stone aggregate (SA) were also investigated.The chloride ingress as well as corrosion of steel bars in concrete made with the different types ofaggregate is ordered as RBA > BA > SA.

Keywords： brick aggregate     chloride ingress     macro-cell corrosion     recycled brick aggregate    

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Effects of coarse and fine aggregates on long-term mechanical properties of sea sand recycled aggregateconcrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 754-772 doi: 10.1007/s11709-021-0711-2

Abstract: Typical effects of coarse and fine aggregates on the long-term properties of sea sand recycled aggregateconcrete (SSRAC) are analyzed by a series of axial compression tests.Two different types of fine (coarse) aggregates are considered: sea sand and river sand (natural and recycledexperiments and the digital image correlation method to obtain the deformation field and crack development of concreteSupportive results show that the compressive strength of SSRAC increase with decreasing recycled coarse

Keywords： sea sand recycled aggregate concrete     recycled coarse aggregate replacement percentage     sea sand chloride    

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Understanding the behavior of recycled aggregate concrete by using thermogravimetric analysis

Subhasis PRADHAN, Shailendra KUMAR, Sudhirkumar V. BARAI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1561-1572 doi: 10.1007/s11709-020-0640-5

Abstract: The physio-chemical changes in concrete mixes due to different coarse aggregate (natural coarse aggregateand recycled coarse aggregate (RCA)) and mix design methods (conventional method and Particle PackingThe PPM mix designed concrete mixes exhibit lower .Recycled aggregate concrete (RAC) mixes exhibit higher and after 7 d of curing, contrary to that afterThe compressive strength of concrete and cannot be correlated for concrete mixes with different aggregate

Keywords： recycled aggregate concrete     Particle Packing Method     thermogravimetric analysis     chemically bound water    

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Behaviors of recycled aggregate concrete-filled steel tubular columns under eccentric loadings

Vivian W. Y. TAM, Jianzhuang XIAO, Sheng LIU, Zixuan CHEN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 628-639 doi: 10.1007/s11709-018-0501-7

Abstract: The paper investigates the behaviors of recycled aggregate concrete-filled steel tubular (RACFST) columnsThe main parameters varied in this study are recycled coarse aggregate replacement percentages (0%, 30%Experimental results showed that the ultimate stresses of RACFST columns decreased with increasing recycledThe recycled coarse aggregate replacement percentages have limited influence on the ultimate stressesof the RACFST columns and has more effect than that of the normal aggregate concrete-filled steel tubular

Keywords： concrete filled steel tubes     recycled aggregate concrete     columns     expansive agent     eccentric load    

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Chloride diffusion in concrete with carbonated recycled coarse aggregates under biaxial compression

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 637-648 doi: 10.1007/s11709-023-0902-0

Abstract: Enhancing the chloride resistance of recycled concrete in a complex environment via carbonization facilitatesthe popularization and application of recycled concrete and alleviates the greenhouse effect.In this study, the chloride ion diffusion and deformation properties of recycled concrete after carbonizationThe results obtained demonstrate that the chloride ion diffusivity of recycled concrete first decreasesThe variation in the chloride ion diffusivity of the carbonized recycled aggregate concrete with the

Keywords： recycled concrete     carbonated recycled coarse aggregate     biaxial compression     chloride diffusion     stress    

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A new systematic firefly algorithm for forecasting the durability of reinforced recycled aggregate concrete

Wafaa Mohamed SHABAN; Khalid ELBAZ; Mohamed AMIN; Ayat gamal ASHOUR

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 329-346 doi: 10.1007/s11709-022-0801-9

Abstract: This study presents a new systematic algorithm to optimize the durability of reinforced recycled aggregateconcrete.flight to improve the firefly performance in forecasting the chloride penetrability of strengthened recycledaggregate concrete (RAC).of recycled aggregate (RA), is used as input to predict the migration coefficient of strengthened RAC

Keywords： chloride penetrability     recycled aggregate concrete     machine learning     concrete components     durability    

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different regression techniques and nature-inspired optimization algorithms to predict carbonation depth of recycledaggregate concrete

Frontiers of Structural and Civil Engineering 2023, Volume 18, Issue 1,   Pages 30-50 doi: 10.1007/s11709-024-1041-y

Abstract: The utilization of recycled aggregates (RA) for concrete production has the potential to offer substantialHowever, RA concrete is plagued with considerable durability concerns, particularly carbonation.To advance the application of RA concrete, the establishment of a reliable model for predicting the carbonationOn the one hand, concrete carbonation is a long and slow process and thus consumes a lot of time andlearning techniques to establish accurate prediction models for the carbonation depth (CD) of RA concrete

Keywords： recycled aggregate concrete     carbonation depth     nature-inspired optimization algorithms     extreme gradient    

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Microbial-inspired self-healing of concrete cracks by sodium silicate-coated recycled concrete aggregates

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 1,   Pages 14-29 doi: 10.1007/s11709-023-0993-7

Abstract: Microbially induced carbonate precipitation (MICP) is a promising technique for the autonomous healing of concreteRecycled concrete aggregates (RCA) coated with sodium silicate have been proposed as protective carriersAlthough the presence of the coated RCA resulted in a loss of the splitting tension strength of the concreteConcrete incorporated with 20% RCA loaded with healing agents exhibited the best self-healing performancepackaging microbial healing agents and has great potential for developing cost-effective self-healing concrete

Keywords： self-healing     microbial-induced carbonate precipitation     water uptake     recycled concrete aggregate     protective    

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Experimental research on seismic behavior of recycled concrete frame under varying cyclic loading

SUN Yuedong, XIAO Jianzhuang, ZHOU Deyuan

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 302-308 doi: 10.1007/s11709-008-0050-6

Abstract: A study is conducted on the seismic behavior of one natural concrete frame and two recycled concreteframes with 100% recycled coarse aggregate whose scales are 1:2 entirely, and a comparative study isconcrete frames under low-reversed cyclic loading as well as the influence of different vertical loadingAnalysis on the basis of the experiment proves that it is entirely feasible to apply recycled concreteTheoretical base is provided for further study and practical application of recycled concrete structure

Keywords： different     aggregate     stiffness     practical application     % recycled    

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Research on recycled concrete and its utilization in building structures in China

Jianzhuang XIAO, Tao DING

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 215-226 doi: 10.1007/s11709-013-0212-z

Abstract: presents a brief introduction to current shaking table test research in China on structures built with recycledaggregate concrete (RAC).

Keywords： recycled aggregate concrete (RAC)     structural material     shaking table tests     building structure    

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Three-scale stochastic homogenization of elastic recycled aggregate concrete based on nano-indentation

Chen WANG, Yuching WU, Jianzhuang XIAO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 461-473 doi: 10.1007/s11709-017-0441-7

Abstract: In this paper, three-scale stochastic elastic finite element analyses are made for recycled aggregateconcrete (RAC) based on nano-indentation digital images.is indicated that the response variability can be considerably affected by replacement percentage of recycled

Keywords： RAC     nano-indentation digital image     multiscale     microscopic randomness     homogenization    

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Axial compression tests and numerical simulation of steel reinforced recycled concrete short columns

Hui MA; Fangda LIU; Yanan WU; Xin A; Yanli ZHAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7,   Pages 817-842 doi: 10.1007/s11709-022-0844-y

Abstract: To research the axial compression behavior of steel reinforced recycled concrete (SRRC) short columnsThe effects on the substitution percentage of recycled coarse aggregate (RCA), width of CFRP strips,spacing of CFRP strips and strength of recycled aggregate concrete (RAC) on the axial compression properties

Keywords： steel reinforced recycled concrete     CFRP strips     short columns     axial compression behavior     recycledaggregate concrete    

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Title Author Date Type Operation

Punching shear behavior of recycled aggregate concrete slabs with and without steel fibres

Jianzhuang XIAO, Wan WANG, Zhengjiu ZHOU, Mathews M. TAWANA

Journal Article

Long term performance of recycled concrete beams with different water–cement ratio and recycled aggregate

Jingwei YING; Feiming SU; Shuangren CHEN

Journal Article

Comments on “Prediction on CO uptake of recycled aggregate concrete”, Frontiers of Structural and Civil

Journal Article

Chloride ingress and macro-cell corrosion of steel in concrete made with recycled brick aggregate

Journal Article

Effects of coarse and fine aggregates on long-term mechanical properties of sea sand recycled aggregateconcrete

Journal Article

Understanding the behavior of recycled aggregate concrete by using thermogravimetric analysis

Subhasis PRADHAN, Shailendra KUMAR, Sudhirkumar V. BARAI

Journal Article

Behaviors of recycled aggregate concrete-filled steel tubular columns under eccentric loadings

Vivian W. Y. TAM, Jianzhuang XIAO, Sheng LIU, Zixuan CHEN

Journal Article

Chloride diffusion in concrete with carbonated recycled coarse aggregates under biaxial compression

Journal Article

A new systematic firefly algorithm for forecasting the durability of reinforced recycled aggregate concrete

Wafaa Mohamed SHABAN; Khalid ELBAZ; Mohamed AMIN; Ayat gamal ASHOUR

Journal Article

different regression techniques and nature-inspired optimization algorithms to predict carbonation depth of recycledaggregate concrete

Journal Article

Microbial-inspired self-healing of concrete cracks by sodium silicate-coated recycled concrete aggregates

Journal Article

Experimental research on seismic behavior of recycled concrete frame under varying cyclic loading

SUN Yuedong, XIAO Jianzhuang, ZHOU Deyuan

Journal Article

Research on recycled concrete and its utilization in building structures in China

Jianzhuang XIAO, Tao DING

Journal Article

Three-scale stochastic homogenization of elastic recycled aggregate concrete based on nano-indentation

Chen WANG, Yuching WU, Jianzhuang XIAO

Journal Article

Axial compression tests and numerical simulation of steel reinforced recycled concrete short columns

Hui MA; Fangda LIU; Yanan WU; Xin A; Yanli ZHAO

Journal Article