Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications
Natural occurring gypsum is a soft mineral consists of hydrated calcium sulphate, mainly used in cement industry. On the other hand, red gypsum (RG) is a waste generated from a sulphate process of ilmenite ore to acquire titanium dioxide. Due to the gypsum content in both materials are similar, it i...
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Sciendo
2014
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| Online Access: | http://umpir.ump.edu.my/id/eprint/30516/ http://umpir.ump.edu.my/id/eprint/30516/1/Some%20geotechnical%20properties%20of%20pure%20and%20waste%20gypsum.pdf |
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| author | Mohd Yuhyi, Mohd Tadza Nurmazuria, Mazelan Nur Farahana, Yusri Amizatulhani, Abdullah |
| author_facet | Mohd Yuhyi, Mohd Tadza Nurmazuria, Mazelan Nur Farahana, Yusri Amizatulhani, Abdullah |
| author_sort | Mohd Yuhyi, Mohd Tadza |
| building | UMP Institutional Repository |
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| description | Natural occurring gypsum is a soft mineral consists of hydrated calcium sulphate, mainly used in cement industry. On the other hand, red gypsum (RG) is a waste generated from a sulphate process of ilmenite ore to acquire titanium dioxide. Due to the gypsum content in both materials are similar, it is expected that both gypsum type can be used for similar engineering applications. In this study, RG was tested and compared to pure gypsum for geoelectrical grounding applications. The geotechnical properties and plasticity characteristics were carefully measured and tested. In addition, X-ray fluorescence (XRF) was employed to study the chemical constituents of the materials. Test results showed that, the geotechnical properties of RG is different to that of white gypsum. The plasticity index (PI) of RG was 239.6% greater due to the presence of Fe ions. Surprisingly, the electrical resistivity of both material were found to be similar. It was also noted that, although the plasticity of pure gypsum is high, the plasticity of pure gypsum was found to be short lived primarily due to instantaneous exothermic reaction between water and semi-hydrated gypsum. The change in the plasticity also affected the resistivity as gypsum hardened after short duration. Based on the geotechnical and plasticity characteristics determined, RG was found to be a better as grounding material as compared to gypsum. |
| first_indexed | 2025-11-15T02:58:39Z |
| format | Article |
| id | ump-30516 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:58:39Z |
| publishDate | 2014 |
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| spelling | ump-305162021-02-08T03:52:25Z http://umpir.ump.edu.my/id/eprint/30516/ Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications Mohd Yuhyi, Mohd Tadza Nurmazuria, Mazelan Nur Farahana, Yusri Amizatulhani, Abdullah QD Chemistry TA Engineering (General). Civil engineering (General) Natural occurring gypsum is a soft mineral consists of hydrated calcium sulphate, mainly used in cement industry. On the other hand, red gypsum (RG) is a waste generated from a sulphate process of ilmenite ore to acquire titanium dioxide. Due to the gypsum content in both materials are similar, it is expected that both gypsum type can be used for similar engineering applications. In this study, RG was tested and compared to pure gypsum for geoelectrical grounding applications. The geotechnical properties and plasticity characteristics were carefully measured and tested. In addition, X-ray fluorescence (XRF) was employed to study the chemical constituents of the materials. Test results showed that, the geotechnical properties of RG is different to that of white gypsum. The plasticity index (PI) of RG was 239.6% greater due to the presence of Fe ions. Surprisingly, the electrical resistivity of both material were found to be similar. It was also noted that, although the plasticity of pure gypsum is high, the plasticity of pure gypsum was found to be short lived primarily due to instantaneous exothermic reaction between water and semi-hydrated gypsum. The change in the plasticity also affected the resistivity as gypsum hardened after short duration. Based on the geotechnical and plasticity characteristics determined, RG was found to be a better as grounding material as compared to gypsum. Sciendo 2014-06-26 Article PeerReviewed pdf en cc_by_nc_nd http://umpir.ump.edu.my/id/eprint/30516/1/Some%20geotechnical%20properties%20of%20pure%20and%20waste%20gypsum.pdf Mohd Yuhyi, Mohd Tadza and Nurmazuria, Mazelan and Nur Farahana, Yusri and Amizatulhani, Abdullah (2014) Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications. Civil and Environmental Engineering Reports, 29 (3). pp. 97-106. ISSN 2450-8594. (Published) https://doi.org/10.2478/ceer-2019-0027 https://doi.org/10.2478/ceer-2019-0027 |
| spellingShingle | QD Chemistry TA Engineering (General). Civil engineering (General) Mohd Yuhyi, Mohd Tadza Nurmazuria, Mazelan Nur Farahana, Yusri Amizatulhani, Abdullah Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications |
| title | Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications |
| title_full | Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications |
| title_fullStr | Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications |
| title_full_unstemmed | Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications |
| title_short | Some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications |
| title_sort | some geotechnical properties of pure and waste gypsum for geoelectrical grounding applications |
| topic | QD Chemistry TA Engineering (General). Civil engineering (General) |
| url | http://umpir.ump.edu.my/id/eprint/30516/ http://umpir.ump.edu.my/id/eprint/30516/ http://umpir.ump.edu.my/id/eprint/30516/ http://umpir.ump.edu.my/id/eprint/30516/1/Some%20geotechnical%20properties%20of%20pure%20and%20waste%20gypsum.pdf |