Engineering properties of improved fibrous peat

Faisal Haji Ali, Leong Sing Wong, Roslan Hashim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Depending on the soil type, different types of binder have been used to stabilize soft soils nowadays. An essential criterion in the selection of suitable binder is its capability of achieving the desirable soil stabilizing function. For peat soil, it was evident that the engineering properties of the soil can be improved with Portland cement and ground granulated blast furnace slag with siliceous sand acting as filler. The soil stabilization technique is developed in such a way that the cement, slag and siliceous sand are dry mixed with in situ peat soil to form columnar reinforcement in the deep peat ground prior to preloading. When mixed with cement in the soil, the slag which contains silica, alumina and reactive lime is activated and this can accelerate the reactions of cement in peat and improve the stabilization effect. This paper highlights the evidence on the positive effects of the binder at stabilizing peat soil through laboratory mix design and testing investigation. Markedly increase in pH and unconfined compressive strength and significant reduction in linear shrinkage, compressibility and permeability of the stabilized peat were discovered from the results of the investigation.

Original languageEnglish
Pages (from-to)154-169
Number of pages16
JournalScientific Research and Essays
Volume5
Issue number2
Publication statusPublished - 2010

Fingerprint

peat
Peat
cement
slags
peat soils
soils
engineering
Soil
Soils
cements
fillers (equipment)
sand
soil mechanical properties
soil stabilization
soil
compressibility
furnaces
Binders
aluminum oxide
selection criteria

All Science Journal Classification (ASJC) codes

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Ali, Faisal Haji ; Wong, Leong Sing ; Hashim, Roslan. / Engineering properties of improved fibrous peat. In: Scientific Research and Essays. 2010 ; Vol. 5, No. 2. pp. 154-169.
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Ali, FH, Wong, LS & Hashim, R 2010, 'Engineering properties of improved fibrous peat', Scientific Research and Essays, vol. 5, no. 2, pp. 154-169.

Engineering properties of improved fibrous peat. / Ali, Faisal Haji; Wong, Leong Sing; Hashim, Roslan.

In: Scientific Research and Essays, Vol. 5, No. 2, 2010, p. 154-169.

Research output: Contribution to journalArticle

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AU - Ali, Faisal Haji

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AB - Depending on the soil type, different types of binder have been used to stabilize soft soils nowadays. An essential criterion in the selection of suitable binder is its capability of achieving the desirable soil stabilizing function. For peat soil, it was evident that the engineering properties of the soil can be improved with Portland cement and ground granulated blast furnace slag with siliceous sand acting as filler. The soil stabilization technique is developed in such a way that the cement, slag and siliceous sand are dry mixed with in situ peat soil to form columnar reinforcement in the deep peat ground prior to preloading. When mixed with cement in the soil, the slag which contains silica, alumina and reactive lime is activated and this can accelerate the reactions of cement in peat and improve the stabilization effect. This paper highlights the evidence on the positive effects of the binder at stabilizing peat soil through laboratory mix design and testing investigation. Markedly increase in pH and unconfined compressive strength and significant reduction in linear shrinkage, compressibility and permeability of the stabilized peat were discovered from the results of the investigation.

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