RBSM-based mesoscale study of mechanical properties and frost damage behaviors for recycled fine aggregate concrete

Zhi, Dian; Xia, Peng; Wang, Shiqi; Gong, Fuyuan; Cao, Wanlin; Wang, Dongmin; Ueda, Tamon

doi:10.1016/j.conbuildmat.2024.135136

Cited by 34 publications

(1 citation statement)

References 47 publications

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“…Furthermore, scholars have been constantly looking for effective methods to improve the frost resistance of RAC, but also to optimize the prediction of frost resistance, such as models for predicting the durability evolution of RAC in the freeze-thaw environment. Zhi et al [150] proposed a probabilistic damage model based on a two-parameter Weibull distribution to establish the relationship between the freezing-thawing cycles and key parameters: the RFA replacement ratio, water-to-cement ratio, and water absorption of RFA. In this research, they clearly demonstrate that the result of this model's prediction is basically consistent with the result of the experiment: the frost resistance of RFA concrete decreases significantly with the RFA replacement ratio and the other factors above.…”

Section: Frost Resistancementioning

confidence: 99%

Application of Aggregates from Construction and Demolition Wastes in Concrete: Review

Luo,

Aguiar,

Wan

et al. 2024

Sustainability

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In the current century, urbanization and the development of the construction industry have led to the generation of construction and demolition waste (CDW), imposing pressure on ecology and the environment. This has attracted the attention of industry personnel and researchers. This work discusses the current research on recycled coarse or fine aggregate, mainly focusing on the physical, mechanical and durability properties of sustainable concrete with recycled coarse or fine aggregate. Furthermore, it also summarizes CDW recycling and classification in major countries, the production processes of recycled aggregate, and the physical properties. This review will provide a reference for the application of concrete with recycled coarse or fine aggregate. Moreover, this review notes that replacing natural aggregates with both coarse and fine recycled aggregates awaits further experimental exploration.

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Section: Frost Resistancementioning

confidence: 99%

Application of Aggregates from Construction and Demolition Wastes in Concrete: Review

Luo,

Aguiar,

Wan

et al. 2024

Sustainability

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Cyclic test and analysis of UHTCC‐enhanced buckling‐restrained steel plate shear walls

Tong,

Wang,

et al. 2024

Earthq Engng Struct Dyn

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The ultra‐high toughness cementitious composite (UHTCC) has the tensile strain‐hardening characteristic and an excellent ability to prevent tensile cracking. To enhance the seismic and durability performance of the conventional buckling‐restrained steel plate shear wall (BRSPSW), UHTCC‐enhanced BRSPSW (UBRSPSW) was proposed in this paper as a new type of lateral bearing system. The buckling of the inner steel plate is restrained by UHTCC‐normal concrete (NC) functionally graded panels, where the panels are composed of UHTCC and NC layers. In this study, experimental and numerical research was carried out on the UBRSPSWs. Six specimens were tested to investigate the seismic behavior of the UBRSPSW. Parameters including the number of stiffeners, the thickness of UHTCC‐NC functionally graded panels, the material of restraining panels, and the gap between the inner steel plate and restraining panels were considered in the test design. Mechanical response and failure modes of the structures under cyclic loads were analyzed. The obtained hysteretic curves and corresponding skeleton curves indicated that the proposed design had excellent seismic performance. Compared to the steel plate shear wall (SPSW), the load‐bearing capacity of UBRSPSW was improved by 13%, respectively. The appearance of macrocracks was delayed by a drift angle of 1.2%. In addition, a refined finite element (FE) model was developed and validated by the results obtained from experiments. The development and distribution of bending moments in the restraining panels were extracted based on the FE method. Then, the loading capacity design method of restraining panels and a theoretical model for controlling the crack width of restraining panels were proposed. The research results of this paper can provide useful suggestions for the seismic design of UBRSPSWs.

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A complete thermo-poromechanical model for freeze-thaw modification of recycled coarse aggregate considering deterioration of each component

Xia,

Huang,

Wang

et al. 2024

Construction and Building Materials

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RBSM-based mesoscale study of mechanical properties and frost damage behaviors for recycled fine aggregate concrete

Cited by 34 publications

References 47 publications

Application of Aggregates from Construction and Demolition Wastes in Concrete: Review

Application of Aggregates from Construction and Demolition Wastes in Concrete: Review

Cyclic test and analysis of UHTCC‐enhanced buckling‐restrained steel plate shear walls

A complete thermo-poromechanical model for freeze-thaw modification of recycled coarse aggregate considering deterioration of each component

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