Thesis Open Access

Use of Municipal Solid Waste Incinerator Bottom Ash with Stone Dust as Partial Replacement of Fine Aggregate in Concrete

Sewnet Dereje


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{
  "DOI": "10.20372/nadre/20224", 
  "abstract": "<p>Concrete demand is increasing with time. So do demand of its constituent materials like<br>\nsand and cement is rising. Thus, there is always a need to look for alternative materials<br>\nto replace depletion of virgin input construction materials. This research work studies<br>\nuse of municipal solid waste incinerator (MSWI) bottom ash with stone dust as partial<br>\nreplacement of fine aggregate in concrete production. The solid waste incinerator<br>\n(MSWI) bottom ash comes from Addis Ababa Repi Waste to Energy Power Plant. This<br>\nplant is a leading national project commenced to prompt energy generation by recycling<br>\ncity wastes.<br>\nExperimental program was designed for C25 concrete with various proportions of<br>\nmunicipal solid waste incinerator (MSWI) bottom ash with stone dust to sand. Fresh<br>\nand hardened concrete mechanical property tests were executed to investigate<br>\nperformance gains of municipal solid waste incinerator (MSWI) bottom ash modified<br>\nconcrete.<br>\nThe results of the slump test of the mixes have shown that, as the amount of the MSWI<br>\nbottom ash with stone dust in the mixes increased, workability decreased. From the<br>\nrecorded results, the hardened concrete strengths at 7 and 28 days of curing was<br>\nimproved up to 50% replacement. Whereas, at 40% replacement, peak 20.13%, 19.82%<br>\nand 7.66% gain in compressive, flexural and shear strength was observed respectively.<br>\nIn addition, as level of replacement increased unit weight of the hard concrete<br>\ndecreased.</p>", 
  "author": [
    {
      "family": "Sewnet Dereje"
    }
  ], 
  "id": "20224", 
  "issued": {
    "date-parts": [
      [
        2020, 
        7, 
        30
      ]
    ]
  }, 
  "language": "eng", 
  "title": "Use of Municipal Solid Waste Incinerator Bottom Ash with Stone Dust as Partial Replacement of Fine Aggregate in Concrete", 
  "type": "thesis"
}
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