Kennedy Onyelowe

Kennedy Onyelowe
Kampala International University (KIU) · College of Higher Degrees and Research (CHDR)

B.Eng-FUTO, M.Eng-UNN, PhD-UNN
Constitutive Modeling & Artificial Intelligence in Geoenginering, Constr. Materials and the Environment

About

193
Publications
116,648
Reads
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1,583
Citations
Introduction
Dr. Kennedy is a Senior lecturer at the MOUA-Umudike, Visiting Fellow at the Kampala International University, Kampala, Uganda and Visiting Fellow and Proposals External Technical Reviewer at the Research and Innovations Fund, Makerere University, Kampala, Uganda. He is also the Principal Researcher for Research Group of Geotechnical Engineering, Construction Materials and Sustainability, Hanoi University of Mining and Geology, Hanoi, Vietnam. He mentors over 50 young researchers globally.
Additional affiliations
June 2020 - present
Makerere University
Position
  • External Reviewer(Visiting Scholar)
Description
  • Research and innovation proposal expert technical reviewing
March 2020 - present
Kampala International University (KIU)
Position
  • Lecturer
Description
  • Teach and supervise postgraduate students of KIU, conduct research and publish journals and books consistent with my areas of research.
January 2019 - present
Federal University Ndufu Alike Ikwo
Position
  • Lecturer
Description
  • Academic
Education
September 2012 - April 2015
University of Nigeria
Field of study
  • Geotechnical Engineering
August 2009 - April 2010
University of Nigeria
Field of study
  • Soil Mechanics and Foundation Engineering
November 1998 - December 2003
Federal University of Technology Owerri
Field of study
  • Civil/Structural Engineering

Publications

Publications (193)
Article
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Abstract: This study focused on the stabilizing potential of kaolin using bone ash as an admixture on the stabilization of Olokoro lateritic soil. Kaoline which is a deposite by the river bank was sourced from Agbaghara in Imo State, Nigeria and the bones from an abattoir in afo-ogbe, Mbaise also in Imo State. The Kaoline was grinded into powder an...
Article
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As the most commonly used construction material, concrete produces extreme amounts of carbon dioxide (CO2) yearly. For this resulting environmental impact on our planet, supplementary materials are being studied daily for their potentials to replace concrete constituents responsible for the environmental damage caused by the use of concrete. Theref...
Article
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This study investigated the synergy effects of precompression pressures on expansive subgrade treated with a nano-geopolymer binder (NGB). A moderate aqueous potassium hydroxide (KOH) of 10 M concentration was synthesized with nanoscale fly ash (α-FA) to develop the NGB. The specimens used for this study were subjected to precompression pressures e...
Article
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Nearly 51.8 million hectares of land area in India is covered with expansive soils (mainly black cotton soil (BCS)). The property of the expansive soils, in general, is that they are very hard when in dry state, but they lose all of their strength when in wet state. In light of this property, these soils pose problems worldwide and a serious challe...
Article
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The recent expansion of power-distribution networks has motivated many researchers to study how to minimize the costs of such projects. Although transmission towers present one of the main items in the network that greatly affect the project budget, there are no clear criteria or recommendations to select the optimum bracing system that minimizes t...
Article
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Infrastructure design, construction and development experts are making frantic efforts to overcome the overbearing effects of greenhouse gas emissions resulting from the continued dependence on the utilization of conventional cement as a construction material on our planet. The amount of CO2 emitted during cement production, transportation to const...
Article
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The environment is seriously being affected by the leachate release at the unconstructed and badly constructed waste containment or landfill facilities around the globe. The worst hit is the developing world where there is little or totally no waste management system and facilities to receive waste released into the atmosphere. This research work i...
Article
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AI-based bi-input predictive models have been executed to forecast the bulk density, linear and volumetric shrinkages and desiccation cracking of HSDA-treated black cotton soil (BCS) for sustainable subgrade construction purposes. The BCS was characterized and classified as A-7 group soil with high plasticity and poorly graded condition. Sawdust...
Article
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Genetic programming (GP) of four levels of complexity, including artificial neural networks of the hyper-tanh activation function (ANN-Hyper-Tanh), artificial neural networks of the sigmoid activation function (ANN-Sigmoid), evolutionary polynomial regression (optimized with genetic algorithm) (EPR), and intelligent techniques have been used to pre...
Article
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The traffic noise big data collected from studying traffic situations in Port-Harcourt Nigeria selected trunks A and C roads sub-sectioned as flexible pavements locations 1, 2, and 3 and flexible and rigid pavements locations 4 and 5 respectively has been analyzed by using the multi-linear regression (MLR) technique. Traffic noise is an acoustic h...
Article
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In this research work, finite element method (FEM) and 2D Plaxis were employed to generate numerical values for bilayered soils bearing a strip footing of width B and depths, h and H, in order to predict the ultimate bearing capacity (UBC) of the strip footing underlain by layered soil pro le. Several research works have tried to solve bearing capa...
Article
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Soil compaction is an important exercise both in the laboratory and the field through which the mechanical properties of soils are improved through mechanical procedure. This is done by suing a mold and hammer of mass (m) falling from a height (H) to deliver energy (E) to the soil. But laboratory or even field time is huge that efforts are made...
Cover Page
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Article
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A zero carbon footprint stabilization approach has been adopted in this research to improve the swelling potential (SP) of clayey soils for a greener construction approach. Construction activities like earthworks during the cement stabilization of unstable soils utilized as reconstituted subgrade materials is responsible for the emission of unhealt...
Article
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In this research work, a comprehensive study is conducted to predict flyrock as a typical and undesirable phenomenon occurring during the blasting operation in open-pit mining. Despite the availability of several empirical methods for predicting the flyrock distance, the complexity of flyrock analysis has resulted in the low performance of these mo...
Article
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Laboratory determination of subgrade soil stiffness (T) and modulus of resilient deformation (D) of subgrade lateritic material is a cumbersome exercise that requires sophisticated and expensive triaxial experimental set up. This, in most cases is lacking in most laboratories. The same condition is experienced during the experimentation of suction...
Article
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The potential of using ashcrete (HSDA) to improve the microstructural, microspectral and shrinkage properties of expansive soils has been investigated under laboratory conditions. In addition to microstructural, three chemical modulus (TCM) and microspectral examinations, responses to linear shrinkage, volumetric shrinkage and crack width were a...
Article
The effects of equal and unequal feeding intervals, organic loading rates (OLR) and operating temperatures on specific methane production (SMP) during the anaerobic digestion (AD) process were investigated using three pairs of continuously stirred tank reactors (CSTRs). The Pair 1, 2 and 3 CSTRs were operated at psychrophilic (25 ± 2 °C), mesophili...
Article
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The coupling effects of nano-geopolymer binder and preloading pressures to restrict cracks and improve the resilient modulus of an expansive subgrade were investigated in this study. A moderate alkali solution of potassium hydroxide (KOH) with a concentration of 10 M and nano-sized fly ash (α-FA) was used to develop a nano-geopolymer binder (NGB) b...
Article
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Waste utilization as an alternative for masonry bricks has proven to compensate for the dwindling natural construction materials particularly clay. Currently, South African municipalities are struggling to update their effective waste management techniques. Improper waste management is one of the major constraints affecting the natural environment...
Article
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The effect of quarry dust-based geopolymer cement on the compressive strength, erodibility, and durability potential of expansive soils has been studied under laboratory conditions. The particular interest was on the geopolymer cement treatment of soils subgrade under hydraulically bound environments. Lateritic soils, which form the compacted found...
Article
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Support vector machine techniques (polynomial and radial basis function) and random forest regression techniques have been used to predict erodibility of an unsaturated soil collected from an erosion watershed located at Amuzukwu, Nigeria. This location has been on the spotlight due to the level destruction resulting from erosion gullies. The soil,...
Article
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Artificial neural network (ANN), gray-wolf, and moth-flame optimization (GWO and MFO) techniques have been used in this research work to predict the effect of activated sawdust ash (ASDA) on the crack width (CW), linear shrinkage (LS), and volumetric shrinkage (VS) of a black cotton soil utilized as a subgrade material. Problematic soils or black c...
Article
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Composite steel beams are commonly used element in multistorey steel buildings to enhance floor economy and serviceability and provide more clear height. Due to the low level of stress in the webs of such beams, hybrid sections are used where the flanges have higher strength than the webs. A lot of earlier research was carried out to optimize the d...
Article
Gene expression programming (GEP) and multi-expression programming (MEP) have been employed to predict models for the unconfined compressive strength of soil under unsaturated (partially saturated to 60%) conditions. Due to the complexity and time consumed during the laboratory estimation of UCS for flexible pavement subgrade design, there is a gre...
Article
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There is an increasing dependence on laboratory testings in solving most of the environmental and highway subgrade failure problems. Thus, it has become necessary to forecast such problems beforehand making use of available machines and data in order to design and monitor future problems relying on predicted parameters. The present work has predict...
Article
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In this research work, the evolutionary polynomial regression (EPR), artificial neural network (ANN), and genetic programming have been used to predict the maximum lateral displacement at pile head and maximum bending moment in flexible free head pile of a laterally loaded pile in layered soil. There have been computational solutions proposed throu...
Chapter
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Artificial neural networks (ANNs) can be used in soil stabilization aspect of geotechnical engineering. As such, this study aimed at applying the ANNs as a soft computing approach to predict the durability, resistance value and resilient modulus of Nigerian expansive clay also called black cotton soil. A soft computing approach using multilayer per...
Article
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The morphology and mineralogy of the soil treated with rice husk ash (RHA) under different molding moisture conditions. Leachate condition in landfills built with compacted clay soil is damaging the underground water flow with the hazards released from disposed and decomposing waste materials. This makes landfills dangerous infrastructure. The leak...
Article
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Volumetric stability and erodibility are important soil properties influenced by moisture through raindrops and eventual runoff and the rise in water tables during wet seasons. Compacted subgrade materials made of clay respond to water ingress through swelling and shrinking in turn during drying and this poses a problem for foundation structures. S...
Article
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Unsaturated lateritic soils are complex soils to work with due to moisture effects. So, the determination of its properties requires lots of time, labor and equipment. For this reason, the application of evolutionary learning techniques has been adopted to overcome these complexities. Lateritic soil under unsaturated condition classified as poorly...
Article
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Support vector machine (SVM) with its feature known as the statistical risk minimization (SRM) has been employed in the prediction of coefficient of curvature and uniformity on unsaturated lateritic soil treated with composites of hybrid cement and nanostructured quarry fines. This feature utilized by SVM is the advantage it exercises over other in...
Article
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Extreme vertex design (EVD) provides an efficient approach to mixture experiment design whereby the factor level possesses multiple dependencies expressed through component constraints formulation. Consequently, the derived experimental points are within the center edges and vertices of the feasible constrained region. EVD was deployed for the mode...
Article
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Artificial neural network (ANN) method has been applied in the present work to predict the California bearing ratio (CBR), unconfined compressive strength (UCS), and resistance value (R) of expansive soil treated with recycled and activated composites of rice husk ash. Pavement foundations suffer from poor design and construction, poor material han...
Article
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Environmental implications of the extensive use of cement and concrete as building materials have significantly increased over the years. In order to mitigate the harmful impact of the cement and concrete industry, the utilization of alternative sustainable and eco-friendly building materials has become imperative. This study assesses the current s...
Article
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In an attempt to promote cleaner environment, the deployment of waste materials in soil amendment protocols have been a major concern to Civil engineers. Recent discoveries in the study of soil mechanics has revealed the pozzolanic tendencies demonstrated by these waste materials which are beneficial in the delivery of road infrastructures. This ha...
Article
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Artificial intelligence (AI) algorithms of adaptive neuro-fuzzy inference system or the adaptive network-based fuzzy inference system (ANFIS) has been deployed to predict the swelling potential (SP) of treated weak soil. The soil was treated with quicklime activated rice husk ash (QARHA) and the prediction efficiency was compared with the previous...
Article
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This study presented the transverse vibration of an axially moving beam with an intermediate nonlinear viscoelastic foundation. Hamilton’s principle was used to derive the nonlinear equations of motion. The finite difference and state-space methods transform the partial differential equations into a system of coupled first-order regular differentia...
Article
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The precipitation of calcite for sustainable modification of expansive soils for green and sustainable construction has been a subject of serious energy investigation in the past years. This is due to the promise for an eco-friendly construction materials synthesis and efficient soil stabilization and earthworks. Results of previous studies have sh...
Article
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Numerical and computational analyses surrounding the behavior of the bearing capacity of soils near or adjacent to slopes have been of great importance in earthwork constructions around the globe due to its unique nature. This phenomenon is encountered on pavement vertical curves, drainages, and vertical infrastructure foundations. In this work, mu...
Article
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Laboratory investigation on the effect of micro sized quarry dust on engineering behaviour of cement stabilized lateritic soil was carried out. The specific concentration was on the effective way of curtailing, managing and disposing solid wastes generated from quarry activities by incorporating them as admixture in cement amelio-ration protocol of...
Article
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This paper evaluates the suitability of sugarcane bagasse ash (SCBA) and waste marble dust (WMD) on the geotechnical properties of Palygorskite-rich expansive clays located in northwest Pakistan. These problematic soils exhibit undesirable characteristics which greatly affect the pavements, boundary walls, slab-on-grade members, and other civil eng...
Article
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A state-of-the-art review on the assessment and modelling of traffic noise intensity on roadside dwellers has been conducted with emphasis on the Port Harcourt, Nigeria case. Traffic noise is generated by individual vehicles and the volume of traffic. For individual vehicles, noise combines sounds produced by the engine, transmission, exhaust, the...
Article
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Microstructural, 3-chemical moduli (3CM) and micro-spectral analyses has been carried out in this research work on HSDA-treated black cotton soil for sustainable subgrade construction. Black cotton soil (BCS) is considered problematic and incapable of withstanding axial load due to its erratically swell-shrink behavior on exposure to moisture. Sadl...
Article
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The cost and sophisticated equipment required to conduct earthwork laboratory experiments have been of concern to the design and performance monitoring of infrastructures in recent times. Lateritic soils especially those under unsaturated conditions are erratic and deserve close attention in terms of laboratory studies. In order to overcome the...
Article
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The challenges in housing and urban infrastructure development in Nigeria are enormous. This work is aimed at exploring the role of research and innovation in overcoming the challenges. It is indeed captured in Goal 11 of the Sustainable Development Goals (SDGs) which aims at making cities and human settlements inclusive, safe, resilient and sustai...
Article
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Swell-shrink phenomenon experienced by foundation soils like the subgrade layer is a major cause of failures in pavement facilities. This phenomenon is fundamentally caused by rise in water table and moisture ingress from runoff, and through pavement surface cracks and lateral movement of water from location to location. Repeated laboratory trails...
Article
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Various environmental problems such as soil degradation and landform evolutions are initiated by a natural process known as soil erosion. Aggregated soil surfaces are dispersed through the impact of raindrop and its associated parameters, which were considered in this present work as function of soil loss. In an attempt to monitor environmental deg...
Article
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The purpose of this study is to review past works in water demands and sustainable water supply planning in Nigeria as reported by many researchers and to determine how to improve the water supply infrastructure sustainably. Nigeria is endowed with abundant surface water and ground water resources. The mean annual rainfall along the coast in the so...
Article
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Sugeno or Takagi–Sugeno–Kang (TSK) type fuzzy inference system ANFIS proposed by Jang and ensemble random forest (ERF) regression, an extension of bootstrap aggregation of decision trees, has been employed to forecast the triple targets of strength properties of a hydrated-lime activated rice husk ash stabilized soft clay soil. This was necessitate...
Article
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Atterberg limits are one of the fundamental geotechnical parameters used to assess the settlement and other volume change parameters of engineering soils containing clays. This paper describes index test results on expansive soil treated with rice husk ash (RHA) and 5%, 10%, and 15% quicklime activated rice husk ash (QARHA) obtained using laborator...
Conference Paper
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Suction is a very important factor in pavement subgrade materials whether treated or untreated, and it is more important with the influence of seasonal changes in moisture for hydraulically bound environments. This physical property was investigated in a cemented and uncemented clayey soil treated with quarry dust based geopolymer cement (QDbGPC)....
Conference Paper
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Adaptive neuro-fuzzy inference system (ANFIS), which integrates both Takagi- Sugeno fuzzy logic and neural network principles and also captures their benefits in a single framework was deployed for the modelling of the unconfined compressive strength (UCS) of expansive clayey soil treated with hybrid binder (HB). The compaction properties, consiste...
Conference Paper
Full-text available
Extreme vertex design (EVD) provides an efficient approach to mixture experiment design whereby the factor level possess multiple dependencies are expressed through component constraints formulation. EVD was deployed for the modeling UCS of a geogrid reinforced problematic soil aimed at checking the validity in subgrade construction. Geogrids are g...
Article
Full-text available
The swelling potential analytics and the ion exchange reaction of highly expansive soils in a soil stabilization process have been reviewed. The importance of these factors in deciding suitable construction materials and chemical additives utilized as alternative or supplementary binders in clayey soil stabilization has been discussed also. The out...
Article
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The use and its advantage in overcoming time and equipment needs of an evolutionary prediction technique known as the genetic programming have been studied using unsaturated sample of soft soil treated with multiple binders. The soil classified as weak and highly plastic was stabilized and multiple experiments were conducted to measure the effect o...