03242ntm a2200361 i 4500 0 0 lcc 0 1 REF 10000 10000 2022-10-27 0 FTKA .M35 2022 r Thesis T000001997 2022-10-27 00:00:00 1 2022-10-27 THESIS 0 0 lcc 0 1 10000 10000 2022-10-27 0 CD13162 T000001998 2023-01-30 00:00:00 1 2022-10-27 THESIS 97946 97952 MY-KuUP 20251125110131.0 t||||fr|||| 00| 0 ta 221027s2022 my a|||frm||| 00| 0 eng d THE0009380(Local) hardback UMP eng UMP rda FTKA .M35 2022 r Thesis Abdulmajeed Ali Mohammed Nasser Al-Hokabi, author. Performance of soft clay stabilized with the replacement of palm oil fuel ash and gypsum / Abdulmajeed Ali Mohammed Nasser Al-Hokabi Kuantan, Pahang : UMP, 2022 © 2022 xviii,269 pages : illustrations (some color) ; 30 cm. + 1 CD ROM text rdacontent unmediated rdamedia computer rdamedia volume rdacarrier computer disc rdacarrier text file PDF rda Faculty of Civil Engineering Technology Thesis (Master of Science) -- Universiti Malaysia Pahang – 2022 Includes bibliographical references The worldwide population growth requires more means of life, accommodation, and food, which leads to people’s motion to the coastline or unstable weak soil areas. Malaysia as one of the main producers of palm oil is required to produce enough supplies to meet the palm oil global demand and maintain its gross national income. However, the generation of about 5 million tons annually of palm oil fuel ash waste have a harmful environmental impact. To tackle both issues, engineers adapted POFA waste upcycling to stabilize and enhance various geotechnical properties of clayey weak soil, kaolin as an example. This study is focusing on the effect of POFA and combined POFA-gypsum mixture on the performance of kaolin where gypsum is a pozzolan activator. Utilizing POFA as a stabilizing agent reduces environmental issues and waste landfill costs and enhances soft clays properties. Achieving Malaysian green technology goals requires an alternative method to balance economic growth and environmental privilege. This research proposes to investigate POFA and gypsum’s role in improving kaolin clay properties in terms of specific gravity, plasticity, compaction parameters, permeability, compressive, and shear strength with the curing period. Kaolin S300 is used as a control clay sample, POFA and gypsum as stabilizing agents. The optimum gypsum ratio is (4% and 6%) based on the previous literature, mixed as a binder with various POFA percentages (0,5,10, and 15). The results of treated samples show a clear drop of specific gravity with POFA-Gypsum addition, reduction of plasticity index, change of compaction characteristics parameters where optimum water content increased with a reduction in maximum dry density, variation in permeability and enhancement of compressive and shear strength with curing period and additives amount. Overall, POFA, gypsum and POFA-gypsum mixture enhanced the geotechnical properties of treated clay. Faculty of Civil Engineering Technology Dissertations Universities and colleges Dissertations Theses lcc THESIS