Compositional effects on the dynamic properties of municipal solid waste

Yuan, Pengbo; Kavazanjian, Edward; Chen, Wenwu; Seo, Bongseong

doi:10.1016/j.wasman.2011.07.009

Cited by 26 publications

(3 citation statements)

References 11 publications

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“…In this research, a total of 24 dynamic triaxial tests were conducted to investigate the dynamic behavior of MSW materials under the aging e ect of samples with di erent unit weights. All the samples were tested under an e ective con ning stress of 75 KPa, a loading frequency of 0.1 Hz, and unit weights of 9 and 12 kN/m 3 . In this research, the 10th cycle, for each test, was assumed to be the base of analysis with the aim of calculating the dynamic parameters.…”

Section: Resultsmentioning

confidence: 99%

“…The reliability of this technique largely depends on the sound investigation into factors including the MSW unit weight pro le, small-strain shear modulus (G max ) or shear wave velocity (V s: ), strain-dependent normalized shear modulus reduction (G=G max ), and material damping relationships. These factors have been the subject of signi cant attention over the past 15 years [3]. As mentioned before, damping ratio and shear modulus of MSW are the required parameters for the equivalent linear seismic response analysis of MSW [2].…”

Section: Introductionmentioning

confidence: 99%

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Effects of aging on dynamic properties of MSW: A case study from Kahrizak Landfill, Tehran, Iran

et al. 2017

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The e ect of aging on dynamic properties of Municipal Solid Waste (MSW) including damping ratio and shear modulus was investigated in the current research. For this purpose, a series of cyclic Consolidated Undrained (CU) triaxial tests were performed on fresh and old reconstituted cylindrical specimens, taken from Mansoory Prototype Land ll (MPL) placed in Kahrizak Land ll, Tehran, Iran. The results showed that the shear modulus of old samples (7.5 years old) was more than that of the fresh ones. This trend can be attributed to decomposition of waste over time, which leads to reduction in organic content and, consequently, increment of brous waste particles (plastics) of the old samples. On the other hand, the results also indicated that the damping ratio was partially dependent on the composition of the specimen and it slightly decreased with increasing the age of MSW. The high percentage of organic content in fresh specimens can be considered as the main reason for this behavior. Finally, the normalized shear modulus reduction and strain-dependent material damping curves were prepared for both ages of retrieved MSW from Kahrizak Center Land ll (KCL). The results of the current study are in the range reported in the technical literature and can be used as reliable data for seismic purposes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of aging on dynamic properties of MSW: A case study from Kahrizak Landfill, Tehran, Iran

et al. 2017

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“…Thus, considerable attention has been paid to the engineering properties of MSW. Related studies have mainly focused on the effects of factors such as waste type, composition, decomposition, moisture conditions, test methods, unit weight, and particle size and shape on the comparative or shear strength behaviors of MSW [21,[23][24][25][26][27][28]. For example, Liu et al [29] combined fly ash, ferrous sulfate and vermiculite vinyl acetate emulsion to enhance the physical and chemical characteristics of vegetation substrate.…”

Section: Introductionmentioning

confidence: 99%

Effects of Municipal Solid Waste on Planting Properties and Scouring Resistance of Vegetation Concrete (Wuhan, China)

Kong

Wang

Guo

et al. 2022

IJERPH

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Vegetation concrete (VC) laid as a reinforcement base and covered by a soil layer with vegetation has been increasingly used to beautify the landscape, reduce environmental pollution and control stormwater runoff. In this study, the effects of municipal solid waste (MSW) on vegetation characteristics of modified VC were tested under different mix compositions. We first explored the effects of the mixed concrete environment on Festuca elata and perennial Ryegrass for 60 days. Then, the influence of various MSW contents added to different percentages of cement on scouring resistance of VC was examined. The experimental results revealed that the germination rates and plant heights of both species decreased with the increase in concrete content. Considering the scouring resistances, the optimal mix proportion of MSW-modified VC was recommended as No. 25, with 5% KW fertilizer, 8% cement and 0.5% wheat straw in this study. Furthermore, adding a small amount of fallen leaves or silica fume to VC can promote the growth of both species to some extent, although these additions had an inverse effect on the scouring resistances. The results contribute to beneficial knowledge for future research on the feasibility of the use these species with VC technology for slope ecological restoration.

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Seismic Design of Waste Containment Systems

Kavazanjian¹

2015

Encyclopedia of Earthquake Engineering

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Compositional effects on the dynamic properties of municipal solid waste

Cited by 26 publications

References 11 publications

Effects of aging on dynamic properties of MSW: A case study from Kahrizak Landfill, Tehran, Iran

Effects of aging on dynamic properties of MSW: A case study from Kahrizak Landfill, Tehran, Iran

Effects of Municipal Solid Waste on Planting Properties and Scouring Resistance of Vegetation Concrete (Wuhan, China)

Seismic Design of Waste Containment Systems

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