Benefit–cost relationship of using concrete with blast furnace slag as road pavement

doi:10.14256/jce.3570.2022

Cited by 3 publications

(5 citation statements)

References 18 publications

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“…For each evaluation object (comparison sequence), the mean values of the correlation coefficients of each indicator and the corresponding elements of the reference sequence were calculated to reflect the correlation relationship between each evaluation object and the reference sequence, which is called the correlation sequence, and is denoted as (17) Each indicator plays a different role in the comprehensive evaluation, and the weighted average value of the correlation coefficient can be calculated as follows,…”

Section: E) Computational Association Ordermentioning

confidence: 99%

“…Moreover, these researchers explored the availability and cost-benefit relationship of concrete containing blast furnace slag in soils with lower bearing strengths for pavements. Their calculations determined that the addition of blast furnace slag reduced the concrete pavement thickness by 1.58-3.38 % and lowered costs by 5.59-10.30 % [17]. In addition, some scholars focussed on the prediction of pavement quality deterioration by studying pavement deformation that led to the development of numerous permanent deformation models for predicting rutting.…”

Section: Introductionmentioning

confidence: 99%

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Integrating grey relation sorting and cost-benefit analysis for optimal asphalt pavement maintenance prioritisation

2024

JCE

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making problem. The common approach involves the prioritisation of road repairs with more extensive surface damages but this does not always align with the actual repair needs. To address this, a method based on the grey correlation theory was introduced to evaluate pavement performance. This method was employed to determine the optimal maintenance time for asphalt pavements. Once the sequence was established, the ideal maintenance schedule for the pre-maintenance sections was determined using a cost–benefit model. This evaluation method is particularly useful for quantitative analyses of the influences of pavement age and traffic volume on pavement performance parameters. The results demonstrate that grey relation sorting effectively weighs the factors and provides rankings for road segments requiring maintenance. A cost–benefit analysis model was used to assess the maintenance sections. This model can guide decisions regarding pre-maintenance sections and assess pavement conditions, thus resulting in outcomes that align better with real-world situations and human judgment. These findings are expected to be valuable for the long-term maintenance of asphalt pavements.

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Section: E) Computational Association Ordermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integrating grey relation sorting and cost-benefit analysis for optimal asphalt pavement maintenance prioritisation

2024

JCE

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“…If the contact connects two particles (with radii r (1) and r (2) ), the contact bond radius is considered equal to the small particle radius r (2) . If the contact connects the particle to the wall, the contact radius is considered to be equal to the particle radius r (3) . The parallel bond radius multiplier is the contact radius increase or decrease factor, at which point the contact radius can be expressed using Eq.…”

Section: Heterogeneous Distribution Model Of Mesoscopic Parametersmentioning

confidence: 99%

“…As the bearing layer of the pavement structure, the CSM base layer can transfer the surface layer load evenly to the foundation. Increasing the strength of the base layer can effectively improve the stability of the surface layer [3]. Thus, an in-depth study of the structural mechanical properties of the subgrade is crucial to the service duration and quality of pavements.…”

Section: Introductionmentioning

confidence: 99%

Non-linear micro-mechanical behavior of heterogeneous cement-stabilized macadam

2023

JCE

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This study aims to examine the internal meso-mechanical behaviour of cement-stabilised macadams subjected to loading damage following water immersion. By constructing a numerical analysis model, the mechanism of water-immersion weakening of the cement-stabilised macadam material and the internal micro-mechanical behaviour of the specimen were analysed. The numerical simulation results were compared with laboratory test data. The peak stress error was 2.414%, whereas the maximum error in the strain corresponding to the peak stress of the specimens with different immersion durations was 3.05%. By comparing the direction distributions of the normal and tangential contact forces in each stage, it was found that the tangential forces at approximately 0º, 90º, 180º, and 270º were much smaller than those at other angles. In the peak stress stage, the normal contact angles between 45–135º and 225–285º were higher than those at other angles. For model M (mean factor) less than 20, the peak stress was significantly affected and increased as a function of M. When M was greater than 20, the peak stress fluctuated within a small range as a function of M. This study provides a new research method for the study of the structural mechanical effect of pavement structures based on cement-stabilised macadam materials damaged following water immersion.

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“…The economic aspects of using concrete containing blast-furnace slag for road pavements have been considered, revealing the cost-benefit relationship and highlighting the economic viability of incorporating blast furnace slag in concrete. In particular, the study emphasises the potential economic advantages of utilising alternative materials in road construction, providing a comprehensive view of its financial implications [32]. Superior mechanical properties of ultrahighstrength concrete fabricated by incorporating glass fibres and silica fume underscore the positive impact on the concrete performance, providing valuable insights into the development of high-performance durable concrete [33].…”

Section: Introductionmentioning

confidence: 99%

Impact of fly ash and banana fiber on mechanical performance of paver block concrete

2024

JCE

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The use of concrete reinforced with natural fibres is globally considered a sustainable approach to infrastructure development. This study investigated the salient features of concrete paver blocks fabricated using fly ash, coal ash, superplasticiser, and banana fibres as fibre reinforcements. Banana fibres (15 mm in length) were prepared, followed by the fabrication and characterisation of concrete paver blocks. In the current study, banana fibre (0.5 %, 1 %, 1.5 %, 2 %, and 2.5 %) and admixture (0.5 % constantly) were used in different mix proportions in the fabrication of paver block to analyse the physicomechanical properties. The results demonstrated that the paver blocks containing 2 % modified banana fiber (with respect to weight of fly ash) show higher compressive strength (7.45 % for I-dumble and 17.12 % for zigzag paver blocks), flexural strength (14.99 % for I-dumble and 8.67 % for zigzag) and split tensile strength (12.182 % for I-dumble and 9.971 % for zigzag paver blocks), compared to other mix proportions. The use of modified banana fibres as reinforcement was found to be very effective in improving the mechanical properties and life span of paver blocks, which may lead to minimizing the preparation.

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Benefit–cost relationship of using concrete with blast furnace slag as road pavement

Cited by 3 publications

References 18 publications

Integrating grey relation sorting and cost-benefit analysis for optimal asphalt pavement maintenance prioritisation

Integrating grey relation sorting and cost-benefit analysis for optimal asphalt pavement maintenance prioritisation

Non-linear micro-mechanical behavior of heterogeneous cement-stabilized macadam

Impact of fly ash and banana fiber on mechanical performance of paver block concrete

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