Electrodialytically treated MSWI APC residue as substitute for cement in mortar

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Air pollution control (APC) residues from municipal solid waste incineration (MSWI) are considered hazardous waste and need pretreatment prior to possible reuse. Here, two MSWI APC residues, from which the most mobile fraction of heavy metals and salts has been removed by carbonation and/or electrodialytic remediation, were used in Portland cement mortar. Mortar bars with 15 % weight replacement of cement by APC residues showed compressive strengths up to 40 MPa after 28/32 days. Heavy metal and salt leaching from both crushed and monolithic mortars with APC residues was generally similar and comparable to both the reference mortar and mortar with coal fly ash. These results indicate that electrodialytic remediation could be used a pre-treatment method for MSWI APC residues prior to reuse in mortar.
Original languageEnglish
JournalNordic Concrete Research
Issue number49
Pages (from-to)1-16
Publication statusPublished - 2014


  • Electrokinetic remediation
  • Mortar
  • Leaching
  • Fly ash
  • Heavy metal


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