Shear Strength of Industrial Wastes and Their Mixtures and Stability of Embankments Made of These Materials

Gruchot, Andrzej; Zydroń, Tymoteusz

doi:10.3390/app10010250

Cited by 4 publications

(2 citation statements)

References 34 publications

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“…Many examples have been developed to valorise, reuse, dispose, and recycle these solid wastes in many fields including, construction and building materials. For example, Gruchot et al [8] showed the influence of compaction on the shear strength of unburnt and burnt coal wastes without/with fly ash (FA) using triaxial compression tests. The tests and the stability calculations showed that the tested waste materials are useful for earth construction purposes.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

et al. 2020

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This paper deals with the potential reuse of coal mine waste rocks (CMWR) as an alternative material for road construction to conserve the natural resources and sustainable management of mining waste. The investigation was conducted through the determination of the chemical, mineralogical, geotechnical properties, and acid mine drainage formulation of CMWR as well as economic feasibility. This waste was used either alone for embankments and mixed with stabilizing agents fly ash (FA) and hydraulic road binder (HRB) for pavement applications. The experimental results confirmed that weathered CMWR can be successfully used alone as a sustainable alternative material for the embankment. Furthermore, the use of stabilizing agents in the following ratio CMWR:FA:HRB = 80:20:5 allow the use of CMWR in road sub-base layers for high-traffic pavements. Also, the environmental investigations showed that CMWR does not present any potential contaminating risk on the surrounding environment and most of the pyrite particles were already oxidized. Therefore, the environmental impact of acid mine drainage produced by pyritic waste throughout its life cycle can be neglected. Finally, an economic case study confirmed the workability of CMWR reuse in a radius of 29 km around their dumps by resulting in a lower cost compared with conventional materials.

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Section: Introductionmentioning

confidence: 99%

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

et al. 2020

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“…The high values of the factor of safety obtained may be due to the high values of the shear strength parameters and, above all, cohesion, which were generally high (greater than 40 kPa). The problem arising from the use of such high cohesion values in the calculations was pointed out by Gruchot and Zydroń [30], indicating the need to reduce this parameter in the case of anthropogenic soils by up to 50%. The results of the calculations also indicate that using the shear strength parameters from the tests at 1.0, and 0.05 mm•min −1 , higher values of the factor of safety at the loading of the embankment crest were obtained, which may also be due to the reinforcement of the embankment during its deformation.…”

Section: Stability Calculations Results and Discussionmentioning

confidence: 99%

Effect of shear rate and saturation on shear strength of mineral and anthropogenic soil

Gruchot,

Zydron

2024

Archives of Civil Engineering

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The aim of the study was to determine the shear strength of mineral and anthropogenic soil of similar grain size as a function of the applied shear rate and water saturation. Stability calculations using the finite element method of the road embankment model were also carried out to demonstrate the variation in factor of safety values depending on the adopted values of the angle of internal friction and cohesion. The tests were carried out in a direct shear apparatus in a 100 x 100 mm box with a sample height of 20.5 mm. The samples were formed directly in the apparatus box at optimum moisture content until a compaction index of IS = 1.00 was obtained. Tests were carried out under conditions without and with water saturation at shear rates of 0.01, 0.05, 0.1, 0.5 and 1.0 mm•min–1 until 18% horizontal displacement was achieved. The results showed that the effect of shear rate on the strength parameters was not unequivocal and was much smaller than the changes caused by saturation of samples. An increase in shear rate resulted in small changes in the angle of internal friction with a tendency towards a decrease. In contrast, cohesion varied over a much larger range with increasing shear rate, with an apparent initial decrease and subsequent increase. The saturation of the samples resulted in a decrease in the angle of internal friction of the cohesive soil and an increase for the ash-slag mixture. The cohesion of both soils decreased. The results obtained from the road embankment model stability calculations confirmed that soil saturation had a greater influence on the factor of safety values obtained than the shear rate.

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Stability Analysis of Colombo–Katunayake Expressway Embankment Using Fly Ash-Stabilized Soil as the Embankment Material

Mathumidah¹,

Lavanyan²,

Nasvi³

2022

Lecture Notes in Civil Engineering

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Shear Strength of Industrial Wastes and Their Mixtures and Stability of Embankments Made of These Materials

Cited by 4 publications

References 34 publications

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

Sustainable Reuse of Coal Mine Waste: Experimental and Economic Assessments for Embankments and Pavement Layer Applications in Morocco

Effect of shear rate and saturation on shear strength of mineral and anthropogenic soil

Stability Analysis of Colombo–Katunayake Expressway Embankment Using Fly Ash-Stabilized Soil as the Embankment Material

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