Experimental and numerical investigation on cyclic triaxial behavior of self-compacting concrete subjected to freeze–thaw damage

Zhu, Xiangyi; Chen, Xudong; Zhang, Nan

doi:10.1016/j.ijfatigue.2021.106277

Cited by 14 publications

(2 citation statements)

References 54 publications

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“…In such circumstances, to obtain reliable fatigue performance data for cold recycled mixtures, the fatigue life can be treated as a random variable. The Weibull distribution has been widely employed in existing research to establish mathematical probability models for the fatigue life of civil engineering materials [34], particularly demonstrating strong adaptability to small sampling and various types of fatigue test data [35]. This study also utilized the two-parameter Weibull distribution to investigate the fatigue life of cold recycled mixtures.…”

Section: Weibull Distributionmentioning

confidence: 99%

Evaluation of the Fatigue Performance of Full-Depth Reclamation with Portland Cement Material Based on the Weibull Distribution Model

Li,

Zhao,

Gao

et al. 2024

Coatings

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The full-depth reclamation with Portland cement (FDR-PC) technology embodies an environmentally friendly approach to solving the damage to old asphalt pavement. Fatigue failure emerges as the predominant mode of degradation for FDR-PC pavement. The fatigue characteristics of the full-depth reclamation with Portland cement cold recycled mixtures were evaluated through four-point bending tests. Three contents (4%, 5%, 6%) of cement and three base-to-surface ratios (10:0, 8:2, 6:4) were utilized. The fatigue equations were derived for the mixtures using a two-parameter Weibull distribution. The results indicate that all correlation coefficients of the Weibull distribution model surpass 0.88, effectively projecting the lifespan of FDR-PC. With increases in cement contents and base-to-surface ratios, the fatigue life of the mixture extends, though with an augmentation of stress sensitivity. Comparative analysis with the fatigue equation model parameters of the current Chinese specifications for the design of highway asphalt pavement reveals that mixtures with a 4% cement content and combinations of a 5% cement content with a low base-to-surface ratio meet the requirements for inorganic-binder-stabilized soil. Additionally, mixtures with a 5% cement content and a high base-to-surface ratio, along with those with a 6% cement content, fulfill the specifications for inorganic-binder-stabilized granular materials.

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Section: Weibull Distributionmentioning

confidence: 99%

Evaluation of the Fatigue Performance of Full-Depth Reclamation with Portland Cement Material Based on the Weibull Distribution Model

Li,

Zhao,

Gao

et al. 2024

Coatings

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show abstract

“…For the same bridge type, the function curves of the degradation model are different due to different regions and load levels. Various studies have established degradation models based on bridge reliability [25][26][27] and bridge technical condition indicators [28]. For example, regarding the linear degradation model, the method is relatively simple but cannot consider complex and changeable factors, while the exponential function model can consider more factors affecting the degradation of the bridge, but with a lack of theoretical basis.…”

Section: Model Of Bridge Technical Degradationmentioning

confidence: 99%

Optimization of Preventive Maintenance Timing of Highway Bridges Considering China’s “Dual Carbon” Target

Pei,

Wang,

Liu

et al. 2023

Sustainability

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The dual carbon target is a two-stage carbon reduction goal proposed by China, while the bridge maintenance strategy does not consider the need for sustainable development. Therefore, this article studies the optimization of bridge maintenance timing under China’s dual carbon goals. Firstly, this paper aims to minimize the total cost of maintenance and carbon emissions, considering the continuous effects of carbon pricing and emissions in the context of the dual carbon goals. The CHINAGEM-E model is employed to predict carbon prices, and a preventive maintenance decision-making method for highway bridges is established. Secondly, based on the theory of material residual strength, a degradation model for the technical condition of highway bridges is constructed. Finally, an in-depth case analysis of an in-service highway bridge is conducted to derive optimal maintenance solutions under three scenarios. In comparison to scenarios considering only maintenance costs or those based on benchmark carbon prices, the comprehensive maintenance cost under the dual carbon targets is the highest. In the total maintenance cost, carbon emission costs constitute over 50%, emphasizing the need for increased attention to carbon emission cost studies in future maintenance research. The methodology proposed in this paper is the first to connect carbon prices with the timing of preventive maintenance for bridges, providing a more scientific and sustainable basis for future highway bridge maintenance decisions.

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Evaluation of fracture behavior of high-strength hydraulic concrete damaged by freeze-thaw cycle test

Zhu

Chen

Bai

et al. 2022

Construction and Building Materials

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Experimental and numerical investigation on cyclic triaxial behavior of self-compacting concrete subjected to freeze–thaw damage

Cited by 14 publications

References 54 publications

Evaluation of the Fatigue Performance of Full-Depth Reclamation with Portland Cement Material Based on the Weibull Distribution Model

Evaluation of the Fatigue Performance of Full-Depth Reclamation with Portland Cement Material Based on the Weibull Distribution Model

Optimization of Preventive Maintenance Timing of Highway Bridges Considering China’s “Dual Carbon” Target

Evaluation of fracture behavior of high-strength hydraulic concrete damaged by freeze-thaw cycle test

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