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008 200701t20192019my a|||fram|| 000 0 eng d
020 _aTHE0008680(Local)
_qhardback
040 _aUMP
_beng
_cUMP
_erda
090 _aFKASA .F378 2019 r Bc.
100 0 _aNur Farahana Yusri,
_eauthor.
245 1 3 _aAn investigation of red gypsum as replacement material to improve the performance of grounding system /
_cNur Farahana Yusri
264 1 _aKuantan, Pahang :
_bUMP,
_c2019
264 4 _c© 2019
300 _axi, 51 pages :
_billustrations ;
_c30 cm. +
_e1 CD-ROM
336 _atext
_2rdacontent
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
337 _acomputer
_2rdamedia
338 _avolume
_2rdacarrier
338 _acomputer disc
_2rdacarrier
347 _atext file
_bPDF
_2rda
500 _aFaculty of Civil Engineering and Earth Resources
502 _aProject Paper (Bachelors of Civil Engineering) -- Universiti Malaysia Pahang – 2019
504 _aIncludes bibliographical references
520 3 _aEarth grounding system serves as lightning-protection in industrial and power plants. One of the major parameters to determine the performance of the grounding system is the resistivity of local soil. Natural occurring or manufactured Gypsum, a soft white or grey mineral consists of hydrated calcium sulphate is used as ground enhancement material. The gypsum content was found to improve the electrical conductivity of materials. 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 material are similar it is expected that red gypsum can be an alternative to white gypsum. In this study, RG was tested and compared with white gypsum to perform a grounding material. The geotechnical properties such as physical and chemical properties were tested first, followed by establishing soil-water retention curve and determination of the resistivity behaviour. A chilled-mirror dew-point and osmotic techniques were used to establish SWRC whereas a 2-point resistivity meter and soil box attachment were used to measure the resistivity of both gypsum and RG under different condition. Test results showed that, the geotechnical properties of RG is different to that of white gypsum. The RG absorbed more water and has higher plasticity characteristic as compared to common gypsum. The resistivity of gypsum and RG are 8 Ω.m and 11 Ω.m, respectively indicating that gypsum is slightly better grounding material than RG, however the differences was found to be very small.
610 2 0 _aFaculty of Civil Engineering and Earth Resources
_xDisertations
650 0 _aUniversities and colleges
_xDisertations
650 0 _aTheses
942 _2lcc
_cPSM