Normal statistical fracture analysis of Roller-compacted concrete on the basis of non-linear elastic fracture mechanics

Li, Lielie; Wang, Yonggang; Guan, Junfeng; Xie, Chaopeng; Khan, Mehran

doi:10.1016/j.compstruct.2023.117543

Cited by 9 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rosso et al [23] studied the corrosion effects on the capacity and conductivity of concrete half-joint bridges using the finite element method. Li et al [24] proposed a method for calculating the virtual crack propagation length based on experimental data and constructed a fracture analysis model for studying the parameter discreteness of roller compacted concrete materials. From the above research, it can be seen that the CZM, as a constitutive relationship that expresses the evolution of interlayer characteristics, can accurately reflect the evolution process of interlayer damage in slab tracks.…”

Section: Introductionmentioning

confidence: 99%

Evolution Mechanism of Interlayer Properties of CRTS III Slab Track during Construction

Wang,

Gao,

Wang

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

The interlayer properties of the CRTS III slab track during construction directly affect its long-term service condition. This article introduces time-varying coefficients that characterize the early properties of the interface between track slab and SCC to improve the bilinear CZM. Based on this, an interlayer property evolution model of the CRTS III slab track during construction is established. The evolution mechanism of interlayer properties under complex loads and the influence mechanism of key parameters on them are revealed. The results show that after SCC pouring, the interlayer damage at the corner of the slab becomes a sensitive area due to the combined effects of SCC shrinkage and temperature gradients. Interlayer damage initially manifests at the corner of the slab before progressively spreading toward the center of the slab, influencing the composite performance and force transmission characteristics of the track structure. The interlayer bonding property, shrinkage performance of SCC, and construction temperature substantially affect interlayer damage evolution. To reduce the risk of damage, mineral admixtures and expansion agents can be added as additives to improve the bonding property and minimize shrinkage of SCC. Insulation measures should be taken for SCC during low-temperature construction, and SCC pouring construction below 0 °C and above 30 °C should be avoided.

show abstract

Section: Introductionmentioning

confidence: 99%

Evolution Mechanism of Interlayer Properties of CRTS III Slab Track during Construction

Wang,

Gao,

Wang

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…In an effort to save costs and save time, specialists are developing performance prediction models for materials and buildings [41][42][43]. Prediction models are used to estimate attributes, and some of these simulations are based on regression.…”

Section: Introductionmentioning

confidence: 99%

Optimizing and hyper-tuning machine learning models for the water absorption of eggshell and glass-based cementitious composite

Xia

2024

PLoS ONE

View full text Add to dashboard Cite

Cementitious composites’ performance degrades in extreme conditions, making it more important to enhance its resilience. To further the adaptability of eco-friendly construction, waste materials are increasingly being repurposed. Cementitious composites deteriorate in both direct and indirect ways due to the facilitation of hostile ion transport by water. The effects of using eggshell and glass powder as partial substitutes for cement and sand in mortar on the water-absorption capacity were investigated using machine learning (ML) modeling techniques such as Gene Expression Programming (GEP) and Multi Expression Programming (MEP). To further assess the importance of inputs, sensitivity analysis and interaction research were carried out. The water absorption property of cementitious composites was precisely estimated by the generated ML models. It was noted that the MEP model, with an R2 of 0.90, and the GEP model, with an R2 of 0.88, accurately predicted results. The sensitivity analysis revealed that the absorption capacity of the mortar was most affected by the presence of eggshell powder, sand, and glass powder. GEP and MEP model’s significance lies in the fact that they offer one-of-a-kind mathematical formulas that can be applied to the prediction of features in another database. The mathematical models resulting from this study can help scientists and engineers rapidly assess, enhance, and rationalize mixture proportioning. The built models can theoretically compute the water absorption of cement mortar made from eggshell powder and glass powder based on varied input parameters, resulting in cost and time savings.

show abstract

Advancements in low-carbon concrete as a construction material for the sustainable built environment

Althoey,

Ansari,

Sufian

et al. 2023

Developments in the Built Environment

View full text Add to dashboard Cite

Normal statistical fracture analysis of Roller-compacted concrete on the basis of non-linear elastic fracture mechanics

Cited by 9 publications

References 42 publications

Evolution Mechanism of Interlayer Properties of CRTS III Slab Track during Construction

Evolution Mechanism of Interlayer Properties of CRTS III Slab Track during Construction

Optimizing and hyper-tuning machine learning models for the water absorption of eggshell and glass-based cementitious composite

Advancements in low-carbon concrete as a construction material for the sustainable built environment

Contact Info

Product

Resources

About