Thesis Open Access

Usage of Garment Sewage Sludge as a Partial Replacement of Sand for a Concrete

Elleni Eliyas

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  "DOI": "10.20372/nadre/20222", 
  "abstract": "<p>Recent construction boom in Ethiopia has leads to extra concrete<br>\ndemands. However, this resulted in scarce of concrete constituent<br>\nmaterials like sand. Nevertheless, sludge which is abundant and a byeproduct of garment/textile factories in Industry zones here in our country<br>\nEthiopia has a potential for use to replace sand in non-structural concrete<br>\nproduction.<br>\nThe present research work experimentally investigates use of garment<br>\n/textile sludge as partial replacement of sand in concrete production.<br>\nExperimental program was designed for C-25 concrete with various<br>\nproportions of sludge replacement with sand and fresh concrete test,<br>\nhardened concrete density and mechanical property tests were performed<br>\nto quantify performance gains.<br>\nExperimental results showed as compared to control concrete, 5%<br>\ngarment/textile sludge replacement by sand resulted on the 28th -day<br>\ncompressive strength is almost same concrete compressive strength.<br>\nWhereas cost benefit analysis revealed a saving of 14.77 birr/m3. Also, 7th<br>\n-day compressive strength test results indicated a 5.4% gain as compared<br>\nto control specimen which is good characteristics for use of sludge<br>\nmodified concrete in precast concrete production. Hence, the research<br>\nrecommends this C-25 grade of solid concrete for non-structural concrete.</p>", 
  "author": [
      "family": "Elleni Eliyas"
  "id": "20222", 
  "issued": {
    "date-parts": [
  "language": "eng", 
  "title": "Usage of Garment Sewage Sludge as a Partial Replacement of Sand for a Concrete", 
  "type": "thesis"
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