Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay
Use of dispersive clay as constructionmaterial 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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Hindawi Publishing Corporation
2013
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| Online Access: | http://eprints.usm.my/38925/ http://eprints.usm.my/38925/1/Effects_of_Using_Pozzolan_and_Portland_Cement_in_the_Treatment_of_Dispersive_Clay.pdf |
| _version_ | 1848878603979194368 |
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| author | Vakili, A. H. Selamat, M. R. Moayedi, H. |
| author_facet | Vakili, A. H. Selamat, M. R. Moayedi, H. |
| author_sort | Vakili, A. H. |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Use of dispersive clay as constructionmaterial 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, from100% 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. |
| first_indexed | 2025-11-15T17:33:58Z |
| format | Article |
| id | usm-38925 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T17:33:58Z |
| publishDate | 2013 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-389252018-02-14T04:39:35Z http://eprints.usm.my/38925/ Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay Vakili, A. H. Selamat, M. R. Moayedi, H. TA1-2040 Engineering (General). Civil engineering (General) Use of dispersive clay as constructionmaterial 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, from100% 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. Hindawi Publishing Corporation 2013 Article PeerReviewed application/pdf en http://eprints.usm.my/38925/1/Effects_of_Using_Pozzolan_and_Portland_Cement_in_the_Treatment_of_Dispersive_Clay.pdf Vakili, A. H. and Selamat, M. R. and Moayedi, H. (2013) Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay. Scientific World Journal, 2013 (547615). pp. 1-10. ISSN 2356-6140 http://dx.doi.org/10.1155/2013/547615 |
| spellingShingle | TA1-2040 Engineering (General). Civil engineering (General) Vakili, A. H. Selamat, M. R. Moayedi, H. Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay |
| 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 |
| topic | TA1-2040 Engineering (General). Civil engineering (General) |
| url | http://eprints.usm.my/38925/ http://eprints.usm.my/38925/ http://eprints.usm.my/38925/1/Effects_of_Using_Pozzolan_and_Portland_Cement_in_the_Treatment_of_Dispersive_Clay.pdf |