Performance appraisal of industrial waste incineration bottom ash as controlled low-strength material

Hashim Abdul Razak, Sivakumar Naganathan, Siti Nadzriah Abdul Hamid

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Controlled low-strength material (CLSM) is slurry made by mixing sand, cement, ash, and water. It is primarily used as a replacement for soil and structural fillings. This paper presents the findings of a preliminary investigation carried out on the performance of industrial waste incineration bottom ash as CLSM. CLSM mixes were designed using industrial waste incineration bottom ash, and cement. Tests for density, setting time, bleed, and compressive strength on cubes under various curing conditions, corrosivity, and leaching of heavy metals and salts were carried out on the CLSM mixtures, and the results discussed. Compressive strength for the designed CLSM mixtures ranged from 0.1 to 1.7 MPa. It is shown that the variations in curing conditions have less influence on the compressive strength of CLSM at high values of water to cement ratio (w/c), but low values of w/c influences the strength of CLSM. The CLSM produced does not exhibit corrosive characters as evidenced by pH. Leaching of heavy metals and salts is higher in bleed than in leachate collected from hardened CLSM. Cement reduces the leaching of Boron in bleed. It is concluded that there is good potential for the use of industrial waste incineration bottom ash in CLSM.

Original languageEnglish
Pages (from-to)862-867
Number of pages6
JournalJournal of Hazardous Materials
Volume172
Issue number2-3
DOIs
Publication statusPublished - 30 Dec 2009

Fingerprint

Ashes
Coal Ash
Incineration
Compressive Strength
Industrial Waste
bottom ash
Waste incineration
Industrial wastes
industrial waste
incineration
Heavy Metals
Salts
Caustics
Boron
Water
Cements
cement
compressive strength
Leaching
Compressive strength

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

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Performance appraisal of industrial waste incineration bottom ash as controlled low-strength material. / Razak, Hashim Abdul; Naganathan, Sivakumar; Hamid, Siti Nadzriah Abdul.

In: Journal of Hazardous Materials, Vol. 172, No. 2-3, 30.12.2009, p. 862-867.

Research output: Contribution to journalArticle

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