Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay
Use of dispersive clay as construction material requires treatment such as by chemical addition. Treatments to dispersive clay using pozzolan and Portland cement, singly and simultaneously, were carried out in this study. When used alone, the optimum amount of pozzolan required to treat a fully disp...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/547615 |
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| author | A. H. Vakili M. R. Selamat H. Moayedi |
| author_facet | A. H. Vakili M. R. Selamat H. Moayedi |
| author_sort | A. H. Vakili |
| collection | DOAJ |
| description | Use of dispersive clay as construction material requires treatment such as by chemical addition. Treatments to dispersive clay using pozzolan and Portland cement, singly and simultaneously, were carried out in this study. When used alone, the optimum amount of pozzolan required to treat a fully dispersive clay sample was 5%, but the curing time to reduce dispersion potential, from 100% to 30% or less, was 3 month long. On the other hand, also when used alone, a 3% cement content was capable of reducing dispersion potential to almost zero percent in only 7 days; and a 2% cement content was capable of achieving similar result in 14 days. However, treatment by cement alone is costly and could jeopardize the long term performance. Thus, a combined 5% pozzolan and 1.5% cement content was found capable of reducing dispersion potential from 100% to zero percent in 14 days. The results indicate that although simultaneous treatment with pozzolan and cement would extend the required curing time in comparison to treatment by cement alone of a higher content, the task could still be carried out in a reasonable period of curing time while avoiding the drawbacks of using either pozzolan or cement alone. |
| format | Article |
| id | doaj-art-387c675a324a45b1a75c13ffa855989f |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-387c675a324a45b1a75c13ffa855989f2025-02-03T07:25:16ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/547615547615Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive ClayA. H. Vakili0M. R. Selamat1H. Moayedi2School of Civil Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, MalaysiaSchool of Civil Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, MalaysiaDepartment of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81300 Johor, MalaysiaUse of dispersive clay as construction material requires treatment such as by chemical addition. Treatments to dispersive clay using pozzolan and Portland cement, singly and simultaneously, were carried out in this study. When used alone, the optimum amount of pozzolan required to treat a fully dispersive clay sample was 5%, but the curing time to reduce dispersion potential, from 100% to 30% or less, was 3 month long. On the other hand, also when used alone, a 3% cement content was capable of reducing dispersion potential to almost zero percent in only 7 days; and a 2% cement content was capable of achieving similar result in 14 days. However, treatment by cement alone is costly and could jeopardize the long term performance. Thus, a combined 5% pozzolan and 1.5% cement content was found capable of reducing dispersion potential from 100% to zero percent in 14 days. The results indicate that although simultaneous treatment with pozzolan and cement would extend the required curing time in comparison to treatment by cement alone of a higher content, the task could still be carried out in a reasonable period of curing time while avoiding the drawbacks of using either pozzolan or cement alone.http://dx.doi.org/10.1155/2013/547615 |
| spellingShingle | A. H. Vakili M. R. Selamat H. Moayedi Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay The Scientific World Journal |
| title | Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay |
| title_full | Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay |
| title_fullStr | Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay |
| title_full_unstemmed | Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay |
| title_short | Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay |
| title_sort | effects of using pozzolan and portland cement in the treatment of dispersive clay |
| url | http://dx.doi.org/10.1155/2013/547615 |
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