Water Content‐Density Criteria for Compacted Soil Liners

Daniel, David E.; Benson, Craig H.

doi:10.1061/(asce)0733-9410(1990)116:12(1811)

Cited by 303 publications

(122 citation statements)

References 8 publications

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“…However, not many studies have been carried out to find out the suitability of class F type of fly ash and cement mixtures as a landfill liner material. In order to qualify to be used as a liner material, the fly ashcement mixtures should have a hydraulic conductivity value less than 10 -9 m/s [14,15] and volumetric shrinkage less than 4 % [16], the criteria given by various environmental agencies and researchers. Hence, the main purpose of this study was to carry out various tests to evaluate the suitability of various mixtures of fly ash and cement, mixed in different proportions, for the landfill liner application.…”

Section: Introductionmentioning

confidence: 99%

On the Utilization of Fly Ash and Cement Mixtures as a Landfill Liner Material

Mishra

Ravindra

2015

Int. J. of Geosynth. and Ground Eng.

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Cement was added to class F type of fly ash in the proportion of 0, 2, 5 and 10 % to study for its suitability as a landfill liner material. Mixtures were compacted to their optimum moisture content (OMC) and maximum dry density (MDD). The results from the consolidation tests showed a relatively lower value of compression index for all the mixtures indicating the settlement due to application of overburden pressure would be small. Hydraulic conductivity of the samples were found to be decreased with the increasing the load. However, none of the mixtures exhibited a hydraulic conductivity value less than 10 -9 m/s, a limiting criterion set by various environmental agencies for the material to be used as a landfill liner. However, mixtures of 90 % fly ash ? 10 % cement compacted at 5 % wet of OMC-MDD exhibited a hydraulic conductivity value less than 10 -9 m/s. On drying, all the mixtures shrunk marginally. The unconsolidated undrained test results indicated that the shear strength parameters increase with increase in the cement content in the mixtures.

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Section: Introductionmentioning

confidence: 99%

On the Utilization of Fly Ash and Cement Mixtures as a Landfill Liner Material

Mishra

Ravindra

2015

Int. J. of Geosynth. and Ground Eng.

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show abstract

“…Nesse cenário as partículas se encontram mais dispersas e há a tendência de se orientarem de maneira paralela. Esta zona admissível, determinada por Daniel & Benson (1990), foi obtida por meio da prática construtiva, com o fim de atender os requisitos necessários de resistência ao cisalhamento, compressibilidade e condutividade hidráulica de barreiras impermeáveis.…”

Section: I) Estrutura Do Solounclassified

“…A proposta de Daniel & Benson (1990) Os mesmos autores lembram que estas características são facilmente explicáveis para os solos granulares, e que para os solos argilosos há outras variáveis como as interações físico-químicas entre o fluido e as partículas do solo.…”

Section: I) Estrutura Do Solounclassified

“…Nos trabalhos de Mitchell, Hooper & Campanella (1965) e Daniel & Benson (1990) foi possível observar a influência do teor de umidade e energia de compactação na condutividade hidráulica do solo (Fig. 10 e Fig.…”

Section: Comparação K Vs ρ Dunclassified

“…Nesses trabalhos os autores fizeram suas correlações através de ensaios em corpos de prova de solo argiloso compactado. Daniel & Benson (1990) Como pode ser observado na Figura 46, as misturas com 3,0% de cimento apresentaram o menor valor de K para w = 6,4%. A w ot para esse teor de cimento é de 6,5%.…”

Section: Comparação K Vs ρ Dunclassified

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