Search Results - "Ong, Dominic Ek Leong"

Experimental optimisation of various cultural conditions on urease activity for isolated Sporosarcina pasteurii strains and evaluation of their biocement potentials by Omoregie, Armstrong Ighodalo, Khoshdelnezamiha, Ghazaleh, Senian, Nurnajwani, Ong, Dominic Ek Leong, Nissom, Peter Morin

“…Microbially induced carbonate precipitation (MICP) is a process that has emerged as an attractive alternative ground improvement technique in Geotechnical and…”
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Strength Development of Soil–Fly Ash Geopolymer: Assessment of Soil, Fly Ash, Alkali Activators, and Water by Leong, Hsiao Yun, Ong, Dominic Ek Leong, Sanjayan, Jay G, Nazari, Ali

“…AbstractIn this study, fly ash was added to residual soil to produce soil–fly ash geopolymer bricks. This study investigated the effects of fly ash/soil,…”
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Effects of Significant Variables on Compressive Strength of Soil-Fly Ash Geopolymer: Variable Analytical Approach Based on Neural Networks and Genetic Programming by Leong, Hsiao Yun, Ong, Dominic Ek Leong, Sanjayan, Jay G, Nazari, Ali, Kueh, Sze Miang

“…AbstractThe identification of significant input variables to the output provides very useful information for mix design for soil-fly ash geopolymer in order to…”
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Influence of Degree of Saturation (DOS) on Dynamic Behavior of Unbound Granular Materials by Sun, Junyu, Oh, Erwin, Ong, Dominic Ek-Leong

“…The extensive application of natural unbound granular materials (UGMs) motivates studies into the mechanical properties of alternatives such as processed…”
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Data-Driven Field Observational Method of a Contiguous Bored Pile Wall System Affected by Accidental Groundwater Drawdown by Chong, Elizabeth Eu-Mee, Ong, Dominic Ek-Leong

“…This paper presents the use of a 700 mm-diameter contiguous bored pile (CBP) wall for a main basement deep excavation project with cut-and-cover tunnel. Due to…”
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The effect of different Na2O and K2O ratios of alkali activator on compressive strength of fly ash based-geopolymer by Leong, Hsiao Yun, Ong, Dominic Ek Leong, Sanjayan, Jay G., Nazari, Ali

“…•Sarawak fly ash was used to produce geopolymers with various mixture proportions.•Higher oxide molar ratios do not necessarily lead to higher compressive…”
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Low-cost cultivation of Sporosarcina pasteurii strain in food-grade yeast extract medium for microbially induced carbonate precipitation (MICP) application by Omoregie, Armstrong Ighodalo, Ngu, Lock Hei, Ong, Dominic Ek Leong, Nissom, Peter Morin

“…Sporosarcina pasteurii is a well-known ureolytic microbial species that proficiently induces the deposition of calcium carbonate through microbially induced…”
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Soil–Structure Interactions in a Capped CBP Wall System Triggered by Localized Hydrogeological Drawdown in a Complex Geological Setting by Ong, Dominic Ek Leong, Chong, Elizabeth Eu Mee

“…Retaining walls are often used to construct basements and underground station boxes. This unique case study compares the field-measured contiguous bored pile…”
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Suitability of Sarawak and Gladstone fly ash to produce geopolymers: A physical, chemical, mechanical, mineralogical and microstructural analysis by Leong, Hsiao Yun, Ong, Dominic Ek Leong, Sanjayan, Jay G., Nazari, Ali

“…Two types of fly ash sourced from Sarawak, Malaysia and Gladstone, Australia reflect differences in chemical compositions, mineral phase and particle size…”
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Strength and Microstructural Assessment of Reconstituted and Stabilised Soft Soils with Varying Silt Contents by Liu, Yaxu, Liu, Zhuang, Oh, Erwin, Ong, Dominic Ek Leong

“…The study of the strength of reconstituted and stabilised soft soils is very important in geotechnical engineering. The soil particles, such as clay, sand, and…”
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Impact of palm oil mill effluent as an economic medium for soil fixation via microbially induced carbonate precipitation by Omoregie, Armstrong Ighodalo, Muda, Khalida, Rahman, Md Rezaur, Bakri, Muhammad Khusairy Bin, Ngu, Lock Hei, Ong, Dominic Ek Leong, Basri, Hazlami Fikri Bin, Hong, Ching Yi, Mokhter, Mohd Akmali

“…Microbial-induced carbonate precipitation (MICP) has been extensively investigated as a viable biological mechanism for soil fixation and biocementation…”
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Perspective of Hydrodynamics in Microbial-Induced Carbonate Precipitation: A Bibliometric Analysis and Review of Research Evolution by Omoregie, Armstrong Ighodalo, Ouahbi, Tariq, Ong, Dominic Ek Leong, Basri, Hazlami Fikri, Wong, Lin Sze, Bamgbade, Jibril Adewale

“…Microbial-induced carbonate precipitation (MICP) is a promising process with applications in various industries, including soil improvement, bioremediation,…”
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Evaluation of Jacking Forces in Weathered Phyllite Based on In Situ Pressuremeter Testing and Deep Learning by Yeo, Lit Yen, Phangkawira, Fredrik, Kueh, Pei Gee, Lee, Sue Han, Choo, Chung Siung, Zhang, Dongming, Ong, Dominic Ek Leong

“…Pipe jacking is a trenchless technology used to install buried pipelines, such as sewer lines in wastewater management systems. Existing mechanistic approaches…”
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Harnessing fluidised bed combustion fly ash as a potential green binder: Origin, characteristics, mechanisms, and products properties by Pei, Jason Shun Fui, Soh, Megan, Choo, Chung Siung, Ong, Dominic Ek Leong, Ng, Sing Muk, Sunarso, Jaka

“…Over the past decade, the production of fluidised bed combustion (FBC) fly ash has overtaken that of pulverised coal combustion (PCC) fly ash, which provides…”
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Two decades of research trends in microbial-induced carbonate precipitation for heavy metal removal: a bibliometric review and literature review by Omoregie, Armstrong Ighodalo, Ong, Dominic Ek Leong, Alhassan, Mansur, Basri, Hazlami Fikri, Muda, Khalida, Ojuri, Oluwapelumi Olumide, Ouahbi, Tariq

“…Amidst the increasing significance of innovative solutions for bioremediation of heavy metal removal, this paper offers a thorough bibliometric analysis of…”
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Impact of highly weathered geology on pipe-jacking forces by Choo, Chung Siung, Ong, Dominic Ek Leong

“…For the Kuching Wastewater Management System Phase 1 project in Kuching, Malaysia, 7·7 km of trunk sewer lines were constructed in the highly fractured, highly…”
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Assessing ureolytic bacteria with calcifying abilities isolated from limestone caves for biocalcification by Omoregie, A.I., Ong, D.E.L., Nissom, P.M.

“…Biocalcification through the use of ureolytic bacteria and biochemical activities has evolved in recent decades into a fervent resourceful effective technology…”
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Evaluation of Jacking Forces in Weathered Phyllite Based on IIn Situ/I Pressuremeter Testing and Deep Learning by Yeo, Lit Yen, Phangkawira, Fredrik, Kueh, Pei Gee, Lee, Sue Han, Choo, Chung Siung, Zhang, Dongming, Ong, Dominic Ek Leong

“…Pipe jacking is a trenchless technology used to install buried pipelines, such as sewer lines in wastewater management systems. Existing mechanistic approaches…”
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Soil bio-cementation treatment strategies: state-of-the-art review by Omoregie, Armstrong Ighodalo, Muda, Khalida, Ong, Dominic Ek Leong, Ojuri, Oluwapelumi Olumide, Bakri, Muhammad Khusairy Bin, Rahman, Md Rezaur, Basri, Hazlami Fikri, Ling, Yong Ee

“…Bio-cementation is a new sustainable approach that has gained popularity due to its low energy and carbon dioxide footprint compared with those of existing…”
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Effects of push–pull injection–suction spacing on sand biocementation treatment by Omoregie, Armstrong Ighodalo, Ong, Dominic Ek Leong, Li, Phua Ye, Senian, Nurnajwani, Hei, Ngu Lock, Esnault-Filet, Annette, Muda, Khalida, Nissom, Peter Morin

“…The process of ureolysis-driven biocementation is used to improve granular soils. The precipitation of calcium carbonate (CaCO 3 ) crystals results from the…”
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