Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes
This paper reports study findings on the diffusivity of chloride ions in potential blended cement. The cement, abbreviated as PCDC, was made from blending ordinary Portland cement (OPC) with dried calcium carbide residue and an incinerated mix of rice husks, spent bleaching earth, and broken bricks....
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2814320 |
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| author | Jackson Muthengia Wachira Joseph Mwiti Marangu |
| author_facet | Jackson Muthengia Wachira Joseph Mwiti Marangu |
| author_sort | Jackson Muthengia Wachira |
| collection | DOAJ |
| description | This paper reports study findings on the diffusivity of chloride ions in potential blended cement. The cement, abbreviated as PCDC, was made from blending ordinary Portland cement (OPC) with dried calcium carbide residue and an incinerated mix of rice husks, spent bleaching earth, and broken bricks. The aim of the study was to investigate the ability of PCDC to withstand aggressive chloride environment. 10 cm × 10 cm mortar cubes were prepared using PCDC and cured for 28 days in saturated calcium hydroxide solution. The cured mortar cubes were subjected to aggressive chloride media in a laboratory set up. The test cement was subjected to chloride profile analysis with depth of cover as a function of w/c ratio and curing period in alternate dry and wet environments of 3.5 percent sodium chloride solution. The experiments were carried alongside neat OPC and OPC + 25% pulverised fuel ash (OPC + 25% PFA). Results showed that PCDC exhibited lower chloride ingress as the depth of cover increased. In conclusion, the study showed that PCDC was a potential cementitious material with high ability to withstand aggressive environment of chlorides. |
| format | Article |
| id | doaj-art-93e51de48b8f4691bf8bd092b2c8e061 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-93e51de48b8f4691bf8bd092b2c8e0612025-02-03T01:31:32ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/28143202814320Chloride Diffusivity in Blended Cement Made from Selected Industrial and AgrowastesJackson Muthengia Wachira0Joseph Mwiti Marangu1Department of Physical Sciences, University of Embu, Embu, KenyaDepartment of Physical Sciences, Meru University of Science & Technology, Meru, KenyaThis paper reports study findings on the diffusivity of chloride ions in potential blended cement. The cement, abbreviated as PCDC, was made from blending ordinary Portland cement (OPC) with dried calcium carbide residue and an incinerated mix of rice husks, spent bleaching earth, and broken bricks. The aim of the study was to investigate the ability of PCDC to withstand aggressive chloride environment. 10 cm × 10 cm mortar cubes were prepared using PCDC and cured for 28 days in saturated calcium hydroxide solution. The cured mortar cubes were subjected to aggressive chloride media in a laboratory set up. The test cement was subjected to chloride profile analysis with depth of cover as a function of w/c ratio and curing period in alternate dry and wet environments of 3.5 percent sodium chloride solution. The experiments were carried alongside neat OPC and OPC + 25% pulverised fuel ash (OPC + 25% PFA). Results showed that PCDC exhibited lower chloride ingress as the depth of cover increased. In conclusion, the study showed that PCDC was a potential cementitious material with high ability to withstand aggressive environment of chlorides.http://dx.doi.org/10.1155/2019/2814320 |
| spellingShingle | Jackson Muthengia Wachira Joseph Mwiti Marangu Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes Advances in Materials Science and Engineering |
| title | Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes |
| title_full | Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes |
| title_fullStr | Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes |
| title_full_unstemmed | Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes |
| title_short | Chloride Diffusivity in Blended Cement Made from Selected Industrial and Agrowastes |
| title_sort | chloride diffusivity in blended cement made from selected industrial and agrowastes |
| url | http://dx.doi.org/10.1155/2019/2814320 |
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