Chemical Stabilization of Amorphous Peat Using Cement and Fly Ash at Different Water Additive Ratios
Abstract: Peat is a very problematic soil as it is poor in strength. However, previous researchers have proven that the compressive strength of peat can be improved by using various methods of soil improvement including chemical stabilization method. In this study, cement and fly ash and lime were...
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my.unimas.ir.439492023-12-29T06:54:17Z http://ir.unimas.my/id/eprint/43949/ Chemical Stabilization of Amorphous Peat Using Cement and Fly Ash at Different Water Additive Ratios Siti Noor Linda, Taib I., Afiqah G.J., Galvinov Indit TA Engineering (General). Civil engineering (General) Abstract: Peat is a very problematic soil as it is poor in strength. However, previous researchers have proven that the compressive strength of peat can be improved by using various methods of soil improvement including chemical stabilization method. In this study, cement and fly ash and lime were additives used and were mixed with amorphous peat at various water additive ratios. To replicate actual stabilization on site, water additive ratio is proposed as to allow stabilization to be performed at natural water content of the peat. Peat samples were collected from Kampung Endap, Samarahan and mixed at its natural moisture content with cement and with fly ash and lime at different water additive ratios of 3.0, 3.5, 4.0, 4.5 and 5.0. The compressive and bearing strengths of the samples were obtained by the unconfined compressive strength (UCS) test and California Bearing Ratio (CBR) test respectively. The results of the study have shown that there is marginal strength gained after 28 and 56 days of air curing period. The peat samples stabilized with cement at 3.5 water additive ratio recorded the highest value with UCS value of 69.48 kPa after 56 days of curing and 0.52 % for CBR test after 28 days curing period. These strength values obtained are lower compared to published data from previous studies. Different technique of mixing in the laboratory that is mixing peat at its natural water content with varied amount of additives at selected water additive ratio as opposed to mixing at maximum dry density and optimum moisture content that is mostly performed in laboratory contributes to the outcome. However, this study has proven that there is an increase in compressive and bearing strengths of stabilized peat in its natural water content compared to original peat without stabilizer. UTHM Publisher 2023-11-23 Article PeerReviewed text en http://ir.unimas.my/id/eprint/43949/3/Chemical.pdf_.pdf Siti Noor Linda, Taib and I., Afiqah and G.J., Galvinov Indit (2023) Chemical Stabilization of Amorphous Peat Using Cement and Fly Ash at Different Water Additive Ratios. INTERNATIONAL JOURNAL OF INTEGRATED ENGINEERING, 15 (9). pp. 1-12. ISSN 2229-838X (In Press) https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/14222 https://doi.org/10.30880/ijie.2023.15.09.001 |
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TA Engineering (General). Civil engineering (General) Siti Noor Linda, Taib I., Afiqah G.J., Galvinov Indit Chemical Stabilization of Amorphous Peat Using Cement and Fly Ash at Different Water Additive Ratios |
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Abstract: Peat is a very problematic soil as it is poor in strength. However, previous researchers have proven that
the compressive strength of peat can be improved by using various methods of soil improvement including chemical
stabilization method. In this study, cement and fly ash and lime were additives used and were mixed with amorphous
peat at various water additive ratios. To replicate actual stabilization on site, water additive ratio is proposed as to
allow stabilization to be performed at natural water content of the peat. Peat samples were collected from Kampung
Endap, Samarahan and mixed at its natural moisture content with cement and with fly ash and lime at different water
additive ratios of 3.0, 3.5, 4.0, 4.5 and 5.0. The compressive and bearing strengths of the samples were obtained by
the unconfined compressive strength (UCS) test and California Bearing Ratio (CBR) test respectively. The results
of the study have shown that there is marginal strength gained after 28 and 56 days of air curing period. The peat
samples stabilized with cement at 3.5 water additive ratio recorded the highest value with UCS value of 69.48 kPa
after 56 days of curing and 0.52 % for CBR test after 28 days curing period. These strength values obtained are lower
compared to published data from previous studies. Different technique of mixing in the laboratory that is mixing
peat at its natural water content with varied amount of additives at selected water additive ratio as opposed to mixing
at maximum dry density and optimum moisture content that is mostly performed in laboratory contributes to the
outcome. However, this study has proven that there is an increase in compressive and bearing strengths of stabilized
peat in its natural water content compared to original peat without stabilizer. |
format |
Article |
author |
Siti Noor Linda, Taib I., Afiqah G.J., Galvinov Indit |
author_facet |
Siti Noor Linda, Taib I., Afiqah G.J., Galvinov Indit |
author_sort |
Siti Noor Linda, Taib |
title |
Chemical Stabilization of Amorphous Peat Using Cement and
Fly Ash at Different Water Additive Ratios |
title_short |
Chemical Stabilization of Amorphous Peat Using Cement and
Fly Ash at Different Water Additive Ratios |
title_full |
Chemical Stabilization of Amorphous Peat Using Cement and
Fly Ash at Different Water Additive Ratios |
title_fullStr |
Chemical Stabilization of Amorphous Peat Using Cement and
Fly Ash at Different Water Additive Ratios |
title_full_unstemmed |
Chemical Stabilization of Amorphous Peat Using Cement and
Fly Ash at Different Water Additive Ratios |
title_sort |
chemical stabilization of amorphous peat using cement and
fly ash at different water additive ratios |
publisher |
UTHM Publisher |
publishDate |
2023 |
url |
http://ir.unimas.my/id/eprint/43949/3/Chemical.pdf_.pdf http://ir.unimas.my/id/eprint/43949/ https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/14222 https://doi.org/10.30880/ijie.2023.15.09.001 |
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