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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    "creators": [
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        "affiliation": "Addis Ababa Science & Technology University", 
        "name": "Sewnet Dereje"
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    "description": "<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>", 
    "doi": "10.20372/nadre/20224", 
    "keywords": [
      "Bottom ash, sand, partial replacement, concrete, compressive strength, flexural strength and shear strength"
    ], 
    "language": "eng", 
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    "publication_date": "2020-07-30", 
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      "supervisors": [
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          "affiliation": "Addis Ababa Science & Technology University", 
          "name": "Tesfaye Alemu ( PhD )"
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      "university": "Addis Ababa Science & Technology University"
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    "title": "Use of Municipal Solid Waste Incinerator Bottom Ash with Stone Dust as Partial Replacement of Fine Aggregate in Concrete"
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