Collapsible intact soil stabilisation using non-aqueous polymeric vehicle

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Abstract

This paper presents the results of an experimental study that had the goal of understanding the effects of treatment with polyethylene glycol (PEG)/nanolime mixtures on collapsible soil behaviour. In a previous study, the use of pure PEG offered a good improvement in the stability of collapsible soil, but the stabilisation effect only lasted for a limited time. To investigate the stabilisation potential of PEG/nanolime systems for collapsible sand, different mixtures were prepared at increasing nanolime weight ratios. The suitability of the stabilised soil was examined on the basis of collapsibility, oedometer, shear, and water vapour permeability tests, and through optical microscopy and scanning electron microscopy observations. The stabilisation effects were analysed by comparing the mechanical behaviour of the sand before and after each treatment. The results showed that even though using various mixtures had different effects on the behaviour of collapsible soils, the treatment produced a significant change in the geotechnical behaviours of the sand in relation to the collapse potential, permeability, compressibility, and shear strength.
Lingua originaleEnglish
Numero di pagine11
RivistaEngineering Geology
Stato di pubblicazionePublished - 2019

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collapsible soil
soil stabilization
Stabilization
Polyethylene glycols
Soils
stabilization
Sand
sand
permeability
compressibility
Compressibility
Shear strength
Water vapor
shear strength
Optical microscopy
microscopy
water vapor
experimental study
scanning electron microscopy
Scanning

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geology

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title = "Collapsible intact soil stabilisation using non-aqueous polymeric vehicle",
abstract = "This paper presents the results of an experimental study that had the goal of understanding the effects of treatment with polyethylene glycol (PEG)/nanolime mixtures on collapsible soil behaviour. In a previous study, the use of pure PEG offered a good improvement in the stability of collapsible soil, but the stabilisation effect only lasted for a limited time. To investigate the stabilisation potential of PEG/nanolime systems for collapsible sand, different mixtures were prepared at increasing nanolime weight ratios. The suitability of the stabilised soil was examined on the basis of collapsibility, oedometer, shear, and water vapour permeability tests, and through optical microscopy and scanning electron microscopy observations. The stabilisation effects were analysed by comparing the mechanical behaviour of the sand before and after each treatment. The results showed that even though using various mixtures had different effects on the behaviour of collapsible soils, the treatment produced a significant change in the geotechnical behaviours of the sand in relation to the collapse potential, permeability, compressibility, and shear strength.",
author = "Bartolomeo Megna and Margherita Zimbardo and Mistretta, {Maria Chiara} and Laura Ercoli and Roberto Scaffaro",
year = "2019",
language = "English",
journal = "Engineering Geology",
issn = "0013-7952",
publisher = "Elsevier",

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TY - JOUR

T1 - Collapsible intact soil stabilisation using non-aqueous polymeric vehicle

AU - Megna, Bartolomeo

AU - Zimbardo, Margherita

AU - Mistretta, Maria Chiara

AU - Ercoli, Laura

AU - Scaffaro, Roberto

PY - 2019

Y1 - 2019

N2 - This paper presents the results of an experimental study that had the goal of understanding the effects of treatment with polyethylene glycol (PEG)/nanolime mixtures on collapsible soil behaviour. In a previous study, the use of pure PEG offered a good improvement in the stability of collapsible soil, but the stabilisation effect only lasted for a limited time. To investigate the stabilisation potential of PEG/nanolime systems for collapsible sand, different mixtures were prepared at increasing nanolime weight ratios. The suitability of the stabilised soil was examined on the basis of collapsibility, oedometer, shear, and water vapour permeability tests, and through optical microscopy and scanning electron microscopy observations. The stabilisation effects were analysed by comparing the mechanical behaviour of the sand before and after each treatment. The results showed that even though using various mixtures had different effects on the behaviour of collapsible soils, the treatment produced a significant change in the geotechnical behaviours of the sand in relation to the collapse potential, permeability, compressibility, and shear strength.

AB - This paper presents the results of an experimental study that had the goal of understanding the effects of treatment with polyethylene glycol (PEG)/nanolime mixtures on collapsible soil behaviour. In a previous study, the use of pure PEG offered a good improvement in the stability of collapsible soil, but the stabilisation effect only lasted for a limited time. To investigate the stabilisation potential of PEG/nanolime systems for collapsible sand, different mixtures were prepared at increasing nanolime weight ratios. The suitability of the stabilised soil was examined on the basis of collapsibility, oedometer, shear, and water vapour permeability tests, and through optical microscopy and scanning electron microscopy observations. The stabilisation effects were analysed by comparing the mechanical behaviour of the sand before and after each treatment. The results showed that even though using various mixtures had different effects on the behaviour of collapsible soils, the treatment produced a significant change in the geotechnical behaviours of the sand in relation to the collapse potential, permeability, compressibility, and shear strength.

UR - http://hdl.handle.net/10447/383579

M3 - Article

JO - Engineering Geology

JF - Engineering Geology

SN - 0013-7952

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