The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling Soil
This study was to investigate the influence of adding optimum percentages of gypsum (G) - lime (L) mixtures (i.e. 6% lime and 4% gypsum) with three percentages of fly ash geopolymer (FAG) (i.e. 6%, 9%, and 12%) on some engineering properties of expansive soil. The tests results indicated that adding...
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2024-12-01
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| Series: | Civil and Environmental Engineering |
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| Online Access: | https://doi.org/10.2478/cee-2024-0071 |
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| author | Salih Sarah R. Shafiqu Qassun S. Mohammed |
| author_facet | Salih Sarah R. Shafiqu Qassun S. Mohammed |
| author_sort | Salih Sarah R. |
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| description | This study was to investigate the influence of adding optimum percentages of gypsum (G) - lime (L) mixtures (i.e. 6% lime and 4% gypsum) with three percentages of fly ash geopolymer (FAG) (i.e. 6%, 9%, and 12%) on some engineering properties of expansive soil. The tests results indicated that adding the percentages for the gypsum-lime mixture (6% lime + 4% gypsum) affected the soil’s properties by decreasing the plasticity index, swelling potential, and swelling pressure by 48.2%, 85%, and 87.9%, respectively. Adding (6% L + 4% G + 12% FAG) decreased the plasticity index, swelling potential, and swelling pressure of prepared expansive soil by about 66.1%, 96.4%, and 96.9%, respectively. The California bearing ratio increased up to 33.3% and 95.1% with the addition of (6% L + 4% G) and (6% L + 4% G + 12% FAG), respectively. Also, adding the same percentages of gypsum-lime mixture and gypsum-lime mixture with geopolymer caused increasing in Unconfined compressive strength value by 109.5% and 322.6%, respectively. The results show the significant effect of gypsum-lime mixture with geopolymer on compaction parameters of the prepared soil, so there was a decrease from 22% to 18% for the optimum moisture content and an increase from 1.473 g/cm3 to 1.516 g/cm3 for the maximum dry density. |
| format | Article |
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| institution | Kabale University |
| issn | 2199-6512 |
| language | English |
| publishDate | 2024-12-01 |
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| spelling | doaj-art-343c620844a7441d83e895434405101e2025-02-02T15:47:54ZengSciendoCivil and Environmental Engineering2199-65122024-12-0120297899210.2478/cee-2024-0071The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling SoilSalih Sarah R.0Shafiqu Qassun S. Mohammed1Department of Civil Engineering, Al-Nahrain University, Baghdad, IraqDepartment of Civil Engineering, Al-Nahrain University, Baghdad, IraqThis study was to investigate the influence of adding optimum percentages of gypsum (G) - lime (L) mixtures (i.e. 6% lime and 4% gypsum) with three percentages of fly ash geopolymer (FAG) (i.e. 6%, 9%, and 12%) on some engineering properties of expansive soil. The tests results indicated that adding the percentages for the gypsum-lime mixture (6% lime + 4% gypsum) affected the soil’s properties by decreasing the plasticity index, swelling potential, and swelling pressure by 48.2%, 85%, and 87.9%, respectively. Adding (6% L + 4% G + 12% FAG) decreased the plasticity index, swelling potential, and swelling pressure of prepared expansive soil by about 66.1%, 96.4%, and 96.9%, respectively. The California bearing ratio increased up to 33.3% and 95.1% with the addition of (6% L + 4% G) and (6% L + 4% G + 12% FAG), respectively. Also, adding the same percentages of gypsum-lime mixture and gypsum-lime mixture with geopolymer caused increasing in Unconfined compressive strength value by 109.5% and 322.6%, respectively. The results show the significant effect of gypsum-lime mixture with geopolymer on compaction parameters of the prepared soil, so there was a decrease from 22% to 18% for the optimum moisture content and an increase from 1.473 g/cm3 to 1.516 g/cm3 for the maximum dry density.https://doi.org/10.2478/cee-2024-0071expansive soilgypsum-lime mixturegeopolymerengineering propertiesswelling potential. |
| spellingShingle | Salih Sarah R. Shafiqu Qassun S. Mohammed The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling Soil Civil and Environmental Engineering expansive soil gypsum-lime mixture geopolymer engineering properties swelling potential. |
| title | The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling Soil |
| title_full | The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling Soil |
| title_fullStr | The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling Soil |
| title_full_unstemmed | The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling Soil |
| title_short | The Effect of Adding Mixture of Gypsum-Lime with Geopolymer on the Properties of Swelling Soil |
| title_sort | effect of adding mixture of gypsum lime with geopolymer on the properties of swelling soil |
| topic | expansive soil gypsum-lime mixture geopolymer engineering properties swelling potential. |
| url | https://doi.org/10.2478/cee-2024-0071 |
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