Influence of thermally activated alum sludge ash on the engineering properties of multiple-blended binders concretes

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12 Citations (Scopus)

Abstract

This paper investigates the influence of thermally activated alum sludge ash (AASA) as partial cement replacement on the engineering properties of binary and ternary blended binders concretes that incorporate silica fume (SF), ground granulated blast furnace slag (GGBS) and palm oil fuel ash (POFA). The water/binder ratio for all the types of mixes is fixed at 0.30. The results show that AASA exhibits pozzolanic behaviour and can be classified as a Class N (natural) pozzolan. The binary blended binders with 15% AASA cement replacement increased the compressive and the tensile strength of concrete up to 85.3 MPa and 5.38 MPa at 28 days, respectively, and further increases in the AASA content gradually reduced these strengths. All the ternary combinations performed better than the binary mixes with AASA for the same replacement levels.

Original languageEnglish
Pages (from-to)216-229
Number of pages14
JournalConstruction and Building Materials
Volume61
DOIs
Publication statusPublished - 30 Jun 2014

Fingerprint

Ashes
Sewage sludge
Binders
Concretes
Cements
Pozzolan
Silica fume
Palm oil
Fuel oils
Slags
aluminum sulfate
Tensile strength

Keywords

  • Alum sludge
  • Engineering properties
  • Multiple-blended binders
  • Pozzolanic material
  • Thermal activation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

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title = "Influence of thermally activated alum sludge ash on the engineering properties of multiple-blended binders concretes",
abstract = "This paper investigates the influence of thermally activated alum sludge ash (AASA) as partial cement replacement on the engineering properties of binary and ternary blended binders concretes that incorporate silica fume (SF), ground granulated blast furnace slag (GGBS) and palm oil fuel ash (POFA). The water/binder ratio for all the types of mixes is fixed at 0.30. The results show that AASA exhibits pozzolanic behaviour and can be classified as a Class N (natural) pozzolan. The binary blended binders with 15{\%} AASA cement replacement increased the compressive and the tensile strength of concrete up to 85.3 MPa and 5.38 MPa at 28 days, respectively, and further increases in the AASA content gradually reduced these strengths. All the ternary combinations performed better than the binary mixes with AASA for the same replacement levels.",
keywords = "Alum sludge, Engineering properties, Multiple-blended binders, Pozzolanic material, Thermal activation",
author = "Owaid, {Haider M.} and Roszilah Hamid and Taha, {Mohd. Raihan}",
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T1 - Influence of thermally activated alum sludge ash on the engineering properties of multiple-blended binders concretes

AU - Owaid, Haider M.

AU - Hamid, Roszilah

AU - Taha, Mohd. Raihan

PY - 2014/6/30

Y1 - 2014/6/30

N2 - This paper investigates the influence of thermally activated alum sludge ash (AASA) as partial cement replacement on the engineering properties of binary and ternary blended binders concretes that incorporate silica fume (SF), ground granulated blast furnace slag (GGBS) and palm oil fuel ash (POFA). The water/binder ratio for all the types of mixes is fixed at 0.30. The results show that AASA exhibits pozzolanic behaviour and can be classified as a Class N (natural) pozzolan. The binary blended binders with 15% AASA cement replacement increased the compressive and the tensile strength of concrete up to 85.3 MPa and 5.38 MPa at 28 days, respectively, and further increases in the AASA content gradually reduced these strengths. All the ternary combinations performed better than the binary mixes with AASA for the same replacement levels.

AB - This paper investigates the influence of thermally activated alum sludge ash (AASA) as partial cement replacement on the engineering properties of binary and ternary blended binders concretes that incorporate silica fume (SF), ground granulated blast furnace slag (GGBS) and palm oil fuel ash (POFA). The water/binder ratio for all the types of mixes is fixed at 0.30. The results show that AASA exhibits pozzolanic behaviour and can be classified as a Class N (natural) pozzolan. The binary blended binders with 15% AASA cement replacement increased the compressive and the tensile strength of concrete up to 85.3 MPa and 5.38 MPa at 28 days, respectively, and further increases in the AASA content gradually reduced these strengths. All the ternary combinations performed better than the binary mixes with AASA for the same replacement levels.

KW - Alum sludge

KW - Engineering properties

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KW - Pozzolanic material

KW - Thermal activation

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