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Stabilisation of an erodible soil using a chemical admixture

Journal Article


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Abstract


  • Internal erosional behaviour of a lignosulfonate-treated

    dispersive soil has been studied using apparatus designed

    and built at University of Wollongong. The effectiveness

    of lignosulfonate-treated dispersive clay on its erosion

    resistance has been investigated and its advantages over

    traditional admixtures (cement) have been presented.

    Lignosulfonate is a non-toxic admixture that can stabilise

    certain erodible and dispersive soils effectively, without

    causing any adverse environmental impact on the

    ground unlike some traditional stabilisers. Test results

    show that the erosional parameters such as critical shear

    stress and coefficient of soil erosion are improved with

    the increase in the amount of lignosulfonate. Knowledge

    about the clay particles and lignosulfonate interaction

    mechanisms is pertinent for long-term environmental

    sustainability of treated soils, a factor which is poorly

    understood at microscopic level. Considering this, X-ray

    diffraction, and Fourier transform infrared spectroscopy,

    scanning electron microscopy and energy dispersive

    X-ray spectroscopy were carried out on representative

    samples to understand the stabilisation mechanism at

    the particle scale level. The improvement of

    performance exhibited by the lignosulfonate-treated soil

    can be mainly attributed to the reduction of the doublelayer thickness by the neutralisation of surface charges of

    the clay particles and the formation of more stable

    particle clusters by polymer bridging.

UOW Authors


  •   Jayan Sylaja, Vinod
  •   Indraratna, Buddhima (external author)
  •   Al Mahamud, Md. Abdullah (external author)

Publication Date


  • 2010

Citation


  • Vinod, J. S., Indraratna, B. & Mahamud, M. A. A. (2010). Stabilisation of an erodible soil using a chemical admixture. Institution of Civil Engineers. Proceedings. Ground Improvement, 163 (1), 43-52.

Scopus Eid


  • 2-s2.0-77956438503

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1721&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/715

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 43

End Page


  • 52

Volume


  • 163

Issue


  • 1

Place Of Publication


  • United Kingdom

Abstract


  • Internal erosional behaviour of a lignosulfonate-treated

    dispersive soil has been studied using apparatus designed

    and built at University of Wollongong. The effectiveness

    of lignosulfonate-treated dispersive clay on its erosion

    resistance has been investigated and its advantages over

    traditional admixtures (cement) have been presented.

    Lignosulfonate is a non-toxic admixture that can stabilise

    certain erodible and dispersive soils effectively, without

    causing any adverse environmental impact on the

    ground unlike some traditional stabilisers. Test results

    show that the erosional parameters such as critical shear

    stress and coefficient of soil erosion are improved with

    the increase in the amount of lignosulfonate. Knowledge

    about the clay particles and lignosulfonate interaction

    mechanisms is pertinent for long-term environmental

    sustainability of treated soils, a factor which is poorly

    understood at microscopic level. Considering this, X-ray

    diffraction, and Fourier transform infrared spectroscopy,

    scanning electron microscopy and energy dispersive

    X-ray spectroscopy were carried out on representative

    samples to understand the stabilisation mechanism at

    the particle scale level. The improvement of

    performance exhibited by the lignosulfonate-treated soil

    can be mainly attributed to the reduction of the doublelayer thickness by the neutralisation of surface charges of

    the clay particles and the formation of more stable

    particle clusters by polymer bridging.

UOW Authors


  •   Jayan Sylaja, Vinod
  •   Indraratna, Buddhima (external author)
  •   Al Mahamud, Md. Abdullah (external author)

Publication Date


  • 2010

Citation


  • Vinod, J. S., Indraratna, B. & Mahamud, M. A. A. (2010). Stabilisation of an erodible soil using a chemical admixture. Institution of Civil Engineers. Proceedings. Ground Improvement, 163 (1), 43-52.

Scopus Eid


  • 2-s2.0-77956438503

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1721&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/715

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 43

End Page


  • 52

Volume


  • 163

Issue


  • 1

Place Of Publication


  • United Kingdom