Evaluation of the bearing capacity of poor subgrade soils stabilized with waste marble powder according to curing time and freeze-thaw cycles

Yorulmaz, Aysegul; Sivrikaya, Osman; Uysal, Firdevs

doi:10.1007/s12517-021-06749-5

Cited by 20 publications

(13 citation statements)

References 44 publications

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“…Although the resulting structure was loose, their pertinent effects on the compressive strength were less than micro-cracks and pores. This is because of the fact that when the dosage of LP is relatively small, its micro-filling effect improves the concrete densification, hinders water from entering into the concrete 25 , and reduces the generated stresses from ice expansion. According to experimentally observed data, the densification of specimens of group G2 was higher than that of G1 and G3 groups.…”

Section: Freeze-thaw Resistance and Microstructurementioning

confidence: 99%

Enhancement of concrete performance via mixed limestone and granite powders

Zeng

Zhang

2021

Preprint

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The granite and limestone powders are commonly exploited as a replacement for cement; however, the effects of different mixing dosages of them on the mechanical properties and durability of concrete have not been scrutinized carefully. Under different environmental conditions, the compressive strength of the specimens is measured using cube compressive, splitting tensile, freeze-thaw cycles, and sulfate immersion tests. The phase composition of hydration products and microstructure is evaluated by SEM scanning analysis. The results indicate that the composite mixture of granite and limestone powders shows a complementary synergistic effect and improves the mechanical properties, freeze-thaw resistance, and sulfate erosion resistance of the concrete. The best values for the mechanical properties and freeze-thaw resistance are obtained when the dosages of granite and limestone powders in order are 10% and 5%. For the case of granite and limestone powders equal to 10% and 15%, respectively, the best sulfate erosion resistance is reported.

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Section: Freeze-thaw Resistance and Microstructurementioning

confidence: 99%

Enhancement of concrete performance via mixed limestone and granite powders

Zeng

Zhang

2021

Preprint

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“…Du et al [ 11 ] compared the improvement effects of calcium carbide residue and quicklime in soft soil subgrade and concluded that the utilization of calcium carbide residue could lead to a better performance. Yorulmaz et al [ 12 ] experimentally found the inclusion of an appropriate amount of waste marble powder could positively improve the bearing capacity of the subgrade soils of highly plastic silt and highly plastic clay. Malicki et al [ 13 ] presented the CBR test results of the effect of recycled geogrid on the bearing capacity of subgrade soft soils.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Tunnel-Slag-Improved High Liquid Limit Soil in Subgrade: A Case Study

et al. 2022

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The application of tunnel-slag-improved high liquid limit soil as filling materials in subgrade is a green environmental technology. This study explored the influence of tunnel slag mixing on the physical and mechanical properties of improved soils, based on the engineering background of Liyu highway, Guangxi Province, China. Firstly, the optimal moisture content, maximum dry density, shear strength parameters, California bearing ratio (CBR) and resilience modulus of plain and tunnel-slag-improved high liquid limit soils were experimentally determined. Results showed that the direct utilization of untreated soil was unacceptable in subgrade practice. A significant enhancement of integrity of high liquid limit soils could be obtained by tunnel slag mixing, and the value of 15% was determined as the optimal tunnel slag content in soils, leading to improved soil performance meeting the specification requirements. Then, numerical simulation on the stability of subgrade slope of tunnel-slag-improved soils at the content of 15% was conducted. It also reported the long-term subgrade settlements. The feasibility of utilization of tunnel slag in improving properties of high liquid limit soils was further validated. Finally, a good application of tunnel-slag-improved high liquid limit soil as subgrade filling materials in Liyu highway was achieved. The findings in this study could provide useful guidance for similar engineering.

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“…ANNs are superior to most traditional procedures [21] due to their modeling capability and capacity to learn from experience. Recently, ANN has been successfully implemented in virtually every field of geotechnical engineering, including the compressive strength and Young's modulus of frozen sand [21][22][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Applying Biogeography-Based Multi-Layer Perceptron Neural Network to Predict California Bearing Capacity Value of Stabilized Pond Ash With Lime and Lime Sludge

Wu¹,

Li²,

2022

CEJ

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In this study, a hybrid biogeography-based multi-layer perceptron neural network (BBO-MLP) with different number of hidden layers (one up to three) was developed for predicting the California bearing capacity (CBR) value of pond ash stabilized with lime and lime sludge. To this aim, model had five variables named maximum dry density, optimum moisture content, lime percentage, lime sludge percentage and curing period as inputs, and CBR as output variable. Regarding BBO-MLP models, BBO-MLP1 has the best results, which its R2 stood at 0.9977, RMSE at 0.7397, MAE at 0.476, and PI at 0.0104. In all three developed models, the estimated CBR values specify acceptable agreement with experimental results, which represents the workability of proposed models for predicting the CBR values with high accuracy. Comparison of three developed models supply that BBO-MLP1 outperform others. Therefore, BBO-MLP1 could be recognized as proposed model.

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Evaluation of the bearing capacity of poor subgrade soils stabilized with waste marble powder according to curing time and freeze-thaw cycles

Cited by 20 publications

References 44 publications

Enhancement of concrete performance via mixed limestone and granite powders

Enhancement of concrete performance via mixed limestone and granite powders

Performance Evaluation of Tunnel-Slag-Improved High Liquid Limit Soil in Subgrade: A Case Study

Applying Biogeography-Based Multi-Layer Perceptron Neural Network to Predict California Bearing Capacity Value of Stabilized Pond Ash With Lime and Lime Sludge

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