Thesis Open Access

INVESTIGATING MECHANICAL PROPERTIES OF ANIMAL BONE POWDER PARTIALLY REPLACED CEMENT IN CONCRETE PRODUCTION

BEKA BENTI TESHOME


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  <identifier identifierType="DOI">10.20372/nadre/4485</identifier>
  <creators>
    <creator>
      <creatorName>BEKA BENTI TESHOME</creatorName>
      <affiliation>ADDIS ABABA SCIENCE AND TECHNOLOGY UNIVERSITY</affiliation>
    </creator>
  </creators>
  <titles>
    <title>INVESTIGATING MECHANICAL PROPERTIES OF ANIMAL BONE POWDER PARTIALLY REPLACED CEMENT IN CONCRETE PRODUCTION</title>
  </titles>
  <publisher>National Academic Digital Repository of Ethiopia</publisher>
  <publicationYear>2019</publicationYear>
  <subjects>
    <subject>animal bone powder  cement  concrete production  strength, optimum dosage partial replacement.</subject>
  </subjects>
  <contributors>
    <contributor contributorType="Supervisor">
      <contributorName>Tesfaye Alemu(Phd)</contributorName>
      <affiliation>ADDIS ABABA SCIENCE AND TECHNOLOGY UNIVERSITY</affiliation>
    </contributor>
  </contributors>
  <dates>
    <date dateType="Issued">2019-10-18</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Text">Thesis</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://nadre.ethernet.edu.et/record/4485</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.20372/nadre/4484</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/aastu</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/nadre</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Concrete is the most important construction material in great demand. In concrete&lt;br&gt;
production, portland cement is a major constituent. However, in time cement cost is&lt;br&gt;
increasing. This surge in price a challenges in construction industry and there is a demand in&lt;br&gt;
finding alternative environmental friendly cement partial replacing material without&lt;br&gt;
compromising mechanical properties of structural concrete.&lt;br&gt;
This research experimentally investigated use of animal bone powder (ABP) as partial&lt;br&gt;
replacement of cement in structural concrete production. Five groups of C-25 concrete grade&lt;br&gt;
specimens with (0%, 5%, 10%, 15%, &amp;amp; 20%) varied proportion of animal bone powder&lt;br&gt;
(ABP) by weight were casted and tested for fresh concrete (slump test) and hardened&lt;br&gt;
concrete mechanical properties such as compressive strength, split tensile strength and&lt;br&gt;
flexural strength at different ages. MP-AES (Microwave Plasma-Atomic Emission&lt;br&gt;
Spectroscopy) for elemental analysis showed that ABP is reach in calcium (contained about&lt;br&gt;
58.64% of calcium, Ca) where the amount of Si, Al and Fe are very small. A total of 180&lt;br&gt;
concrete specimens were casted at Adama Science &amp;amp; Technology University &amp;amp; tested at&lt;br&gt;
Addis Ababa Science &amp;amp; Technology University. The recorded 28th mean compressive,&lt;br&gt;
flexural and split tensile strengths for 0%, 5%, 10%, 15% &amp;amp; 20% replacement of cement by&lt;br&gt;
ABP were (33.63, 30.45, 28.20, 23.64, 20.59 , 3.62, 3.21, 3.04, 2.86, 2.63, 4.39, 3.77, 3.42,&lt;br&gt;
3.21, &amp;amp; 2.68)MPa respectively. This study revealed that as the percent addition of ABP&lt;br&gt;
increases, its strength significantly declined from the control specimen. Also, test results&lt;br&gt;
indicated that optimum cement partial replacing amount of animal bone powder (ABP) is&lt;br&gt;
10% by weight.&lt;br&gt;
&amp;nbsp;&lt;/p&gt;</description>
  </descriptions>
</resource>
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