Municipal incinerated bottom ash characteristics and potential for use as aggregate in concrete

Ciaran Lynn, Ravindra Dhir, Gurmel Ghataora

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42 Citations (Scopus)
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Abstract

The use of municipal incinerated bottom ash (MIBA) as aggregate in concrete applications has been assessed through the analysis and evaluation of the globally published data. After appropriate pre-treatments, MIBA can be used as fine or coarse aggregate in mortar, concrete and blocks. Full-scale operations have been undertaken with success, mainly in blocks. MIBA lightweight aggregate had similar properties to Lytag, though with marginally lower strength. Concrete containing MIBA lightweight aggregate achieved low density, high consistence properties, with strengths just below Lytag mixes. Replacing sand in foamed concrete, MIBA mixes satisfied the high flowability, low strength requirements.
Original languageEnglish
Pages (from-to)504-517
JournalConstruction and Building Materials
Volume127
Early online date12 Oct 2016
DOIs
Publication statusPublished - Nov 2016

Keywords

  • Municipal incinerated bottom ash
  • Sustainable construction materials
  • aggregate
  • mortar
  • concrete
  • blocks
  • lightweight aggregate concrete
  • foamed concrete

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