
Mohd HafezINTI International University | inti · Civil Engineering
Mohd Hafez
Doctor of Engineering
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100
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Publications
Publications (100)
Studies showed that unethical practices in public procurement may hinder construction projects and economic development, particularly in developing cities and states, such as Edo State, Nigeria. The Nigerian Government enacted the Public Procurement Act (2007) to address the issues. Many states domesticated the Act, including Edo State (Edo State P...
The economic development programme aims to increase income and reduce indigenous people's poverty while introducing indigenous economic resources. This study appraises indigenous people’s effectiveness of economic development programmes in Perak land development projects (RPS), Malaysia. The researchers adopted a mixed-method approach involving 300...
The target date for achieving the 2030 UN Agenda [Sustainable Development Goals (SDGs)] is fast approaching. The construction sector is critical to achieving many SDGs, including Goal 5. Studies regarding achieving Goal 5 (Gender Equality) in the construction industry, especially women’s consultancy participation in developing countries, are scarce...
Studies showed that unethical practices in public procurement may hinder construction projects and economic development, particularly in developing cities and states, such as Edo State, Nigeria. The Nigerian Government enacted the Public Procurement Act (2007) to address the issues. Many states domesticated the Act, including Edo State (Edo State P...
Undetected intracranial injuries have the potential to lead to enduring cerebral impairments, significant functional limitations, or fatality. The timely diagnosis and treatment of intracranial hematomas is crucial to enhance patient outcomes. Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) are medical imaging techniques utilized to i...
The correct diagnosis and staging of this complex inflammatory disease that majorly affects the lungs, such as Sarcoidosis, are very important. Therefore, this research focuses on differentiating the four stages of Sarcoidosis using chest X-ray images with the application of three machine learning classifiers: K-Nearest Neighbours, Support Vector M...
We study systems of two and three electrons confined to circular rings. The electrons are considered spinless, and we assume that one electron occupies a single ring. We use the framework of such a model to calculate the linear entropy and, thus, the spatial entanglement between the confined electrons. The geometry of the problem for the case of tw...
This study explores the potential of a composite binder comprising cement bypass dust (CBD) and spent fluid catalytic cracking (FCC) catalyst for sustainable pavement base stabilization. Various CBD/FCC ratios (30:70, 50:50, 70:30) and binder contents (4%, 6%, 8%, 10%) were evaluated through laboratory testing. The 50:50 CBD/FCC mixture demonstrate...
Systems composed of several multi-layer compounds have been extremely useful in tailoring different quantum physical properties of nanomaterials. This is very much true when it comes to semiconductor materials and, in particular, to heterostructures and heterojunctions. The formalism of a position-dependent effective mass has proved to be a very ef...
Gypseous soil is a collapsing soil that has not yet been approved as a construction material since its behavior under water, temperature, and pressure is unreliable and unpredictable. Researchers and scientists are always searching for new and creative ways to optimize the benefits of calcium carbide residue (CCR) recycling, which is a byproduct of...
This study evaluates the engineering properties of a novel type of reinforced PVC-encased micropile made of an expanded mixture (PUCR) of polyurethane resin (PU) and crumb rubber (CR) for Kenyir dam slopes stabilization. Two types of PUCR micropiles were tested: one containing 4.0 kg/m of PU and another with 2.0 kg/m of PU, both with varying ratios...
Citation: Yassin, A.M.; Hafez, M.A.; Mohie Eldin, M. The Flexural Behavior of Reinforced Ultra-High Performance Engineering Cementitious Composite (UHP-ECC) Beams Fabricated with Polyethylene Fiber (Numerical and Analytical Study). Buildings 2024, 14, 3484. Abstract: Ultra-high performance engineered cementitious composite (UHP-ECC), which is a new...
Purpose
Studies show that apprenticeships can enhance skills development and economic growth. There is a paucity of academic literature concerning apprenticeship’s role in developing Nigerian construction artisans’ skills, especially regarding achieving Sustainable Development Goal 8 (Decent Work and Economic Growth). Thus, this study aims to appra...
Studies have shown that the progress and success of companies are achieved through their ability to improve energy performance and preserve the environment. It would translate to environmentally friendly products. However, there is a paucity of studies regarding the International Organisation for Standardisation (ISO) 50001 and its role in enhancin...
When piles are used to reduce raft settlement, significant shear stresses and bending moments can be created.Separate piles are utilized to alleviate concerns about high tensions in piles and rafts. A structural fill sand-gravel cushion in an unconnected piled raft foundation isolates the piles from the raft (UCPR). The cushion redistributes the lo...
Purpose
Twenty-first century digitalisation birthed new methods of payment systems like the emergence of cryptocurrencies. Cryptocurrency technologies have been identified as drivers for crypto-smart contracts and procurements. Studies regarding the application of cryptocurrency technologies in the Nigerian built environment industry are uncommon....
In the era of digitalisation, the construction industry is fast embracing digital technology, which evolved from Industry 4.0 (fourth industrial revolution [4IR]). Built environment programmes (BEPs) are expected to meet the needs of the digitalisation era via Education 4.0. Education 4.0 aims to transform education’s future with diverse digital au...
Searching for a reliable indicator of treatment response in sarcoidosis remains a challenge. The use of the soluble interleukin 2 receptor (sIL-2R) as a measure of disease activity has been proposed by researchers. The aim of this study was to develop a machine learning model to predict sIL-2R levels based on serum angiotensin-converting enzyme (AC...
Micro polypropylene (PP) fibers are commonly utilized to increase concrete’s durability and fire resistance in
building projects. High-Performance-Fiber-Concrete (HPFC) has become increasingly popular in the sustainable
buildings industry in the past two decades. Some important structures were constructed using HPFC with micro
polypropylene fibers...
The extensive use of cement exacerbates the greenhouse effect by increasing carbon dioxide (CO 2) emissions. So, many standards recommend using Portland-composite cement in construction as one of the methods for reducing CO 2 emissions, especially cement CEM II/A-P. This paper presents an extensive experimental and numerical study to investigate th...
Studies on preferred tourist locations focus on developed countries and selected Asian cities. Many African cities like the Ancient City of Benin Kingdom (ACBK) have been grossly under-researched in global extant literature regarding preferred tourist locations and how they may improve achieving Sustainable Development Goal 11 (Goal 11). Thus, this...
Studies show that the government’s role can improve low-cost housing (LCH) to achieve SDGs linked with housing. LCH provision as a government social responsibility to achieving Goal 11 may raise critical issues in Malaysia. Therefore, this study investigated the factors hindering Malaysia’s Government from providing LCH as a social responsibility t...
Purpose
The construction industry is unique but with uncertainties. This is because of the operating environment. This intricacy gives rise to several construction risks and is compounded in developing countries’ turbulent times. If not managed, these risks enhanced in turbulent times could negatively impact the Nigerian construction projects’ cost...
Developing countries industrial growth necessitates innovative machine foundation design and resilient infrastructure. Meanwhile, soil properties play a significant role in the satisfactory design of machine foundations. The paper presents an experimental work to determine accurately the damping ratio and shear modulus by equations. The paper studi...
The need for massive structures such as dams, car parks and pavements has increased in developing countries, so improving construction materials has become a trend. Since Roller Compacted Concrete (RCC) is efficient for such projects, it is beneficial to improve it and make it affordable and environmentally friendly. In this review paper, some spec...
The need for massive structures such as dams, car parks, and pavements has increased in developing countries, so improving construction materials has become a trend. Since Roller-Compacted Concrete (RCC) is efficient for such projects, it is beneficial to improve it and make it affordable and environmentally friendly. In this review paper, some spe...
Terengganu is one of the states in Malaysia that will be the most affected by the northeast monsoon which usually happens early in November and lasts until March every year. Continuous heavy rainfall may cause various natural disasters including debris flow. Due to the features of sudden outbursts and high energy density, debris flow has caused a s...
There is a need to investigate the flexural behavior and mechanical properties of super high-performance concrete (SHPC) for a better understanding of its response to compression, tension, and bending. Super-high-performance concrete (SHPC) lies between high-performance concrete (HPC) and ultra-high-performance concrete (UHPC) in strength, durabili...
The study's objective is to ascertain the proportion of implemented green productivity standards, identify implemented green productivity standards, and identify deficiencies in Al-Sumoud Baiji Refinery's dedication to enhancing productivity and safeguarding the environment in crude oil refining. The data was gathered via on-site visits to business...
The company's management's interests are concerned with the critical factors of quality and operational performance, which contributes to their potential for providing quality products that meet the needs of customers and their desires while simultaneously allowing them to produce competitive products. This research sought to determine the relation...
Scrap rubber tyres are one of the synthetic fibre materials that can be used as a soil stabilizer. This study looks into the effects of scrap rubber tyres as a soil stabiliser on clay soil. Soil samples were collected in Kota Kinabalu, and the scrap rubber tyre was passed through a 2 mm passing sieve. Three experimental tests were carried out: comp...
The effects of polypropylene fibres on mortar and cement-paste cracking were investigated using different amounts of fibre fractions and eccentric rings under restrained-shrinkage conditions. Eccentric-ring tests were conducted to investigate early-age shrinkage cracks. The characteristics of restricted cementitious materials were described by eval...
A landslide is a natural disaster that will damage social life. Currently, the established monitoring system for the landslide is not very efficient as no system uses a component that can detect rainfall, seeing that Malaysia is a tropical country with high rainfall intensity. This research aims to design a smart monitoring and warning system to de...
Construction over soft soil has always possessed challenges for engineers as this type of soil is problematic due to its poor geotechnical characteristics. Overburden pressure over soft soil in road construction can cause cracks, ground instability, and settlement as the soil has low bearing capacity. This can reduce the quality of driving comfort...
In recent years, stabilisers such as lime, cement and fly ash have become prohibitively expensive for soil stabilisation. In some circumstances, solid waste production, particularly garbage from plastic products, is increasing uncontrollably and continuously. Given the rapid increase in plastic waste and the rising expense of additives in recent ye...
Disaster can be defined into two types: natural and human-made. Landslide disaster is one of the disasters that frequently occur in Malaysia due to the country being in a tropical climate with enormous rainfall intensity. Many reasons can make the landslide happen, such as soil movement and heavy rain. The landslide monitoring system is essential f...
This study reports the influence of different climatic ambient temperatures on the thermal properties of fiber-reinforced lightweight aggregate concrete (LWAC). Lightweight expanded clay aggregates (LECA) with steel (ST) and polypropylene fibers were used in the mix proportions. The steady-state thermal test was performed on concrete samples at the...
Citation: Shafigh, P.; Hafez, M.A.; Che Muda, Z.; Beddu, S.; Zakaria, A.; Almkahal, Z. Influence of Different Ambient Temperatures on the Thermal Properties of Fiber-Reinforced Structural Lightweight Aggregate Concrete. Buildings 2022, 12, 771. https://doi.org/10.3390/
The effect of shear box size on the study of the shear strength characteristic is widely researched by many. Based on findings from a previous journal paper on the Effects of Shear Box Size on Shear Strength between Modified Sand-Column (PFA-Sand Mixture) and Soft soil, this research continues to study the comparison of unconfined compressive stren...
This study is about the determination of the physical and engineering properties of boiler slag. The boiler slag is a by-product that is obtained from the Tanjung Bin power plant. The source of reference for the use of boiler slag is minimal for this type of applications. However, this is an environmental suggestion to utilise the disposed of by-pr...
Improvement of soil by using Nanomaterial as a technique is essential to enhance the geotechnical properties of soils. In past years, several steps have been taken in the field of geotechnical engineering to improve the properties of the weak soil by using nanomaterial technique. So many investigations have been done using different soil
test to kn...
This study investigates how to reduce the demand on in non-renewable granite source, by replacing granite aggregate with boiler slag in the stone column. It is a fact that boiler slag is a power station waste material which causes too many environmental problems. By introducing it as a ground improvement technique, we can reduce the bulging and she...
In this study, numerical simulation was conducted to characterize and quantify the soil-structure interaction for buried concrete box culverts under high fill embankments. For such buried culverts, the dead weight of soil itself is the main design load, and the effect of live loads is not considered significant. Important factors that influence soi...
The precise prediction of the ultimate load carrying capacity of bored piles is a complex problem because it is a function of several factors. These factors include a method of boring, a method of concreting, quality of concrete, the expertise of the construction staff, the ground conditions, cost of the projects and others constraint. The performa...
The rehabilitation of the Cameron Highlands hydroelectric scheme which includes a process of removing a volume of about 2.8 million cubic meters sediments. The reservoir sediment has been excavated, as it is transported from the dredging site to the placement site or disposal area in government owned Sg. Jasin/Jasik site. The 2 dredged reservoir se...
Desilting of reservoirs are done to remove the sediments and to restore the live storage. The sediments are normally disposed by creating embankments around the reservoir area. Culverts are normally buried in the embankment for drainage of upstream rain water. These culverts carry large embankment loads. This paper presents an analysis of RC culver...
Ground improvement has promising of widespread application from time to time due to rising value of land and limited availability of suitable sites for construction. Construction of low rise building, road embankment and liquid storage on soft soil could bring to high expenditure if there is no appropriate design considered. Stone column is one of...
According to previous studies, conventional stone columns have limitation on extremely soft soil due to lack of bonding among the particles of stone. Since many years ago, most of researchers have attempted to solve this problem and one of the solution was using mixed material such as cement to prevent bulging problem on stone columns. However, by...
Stone column is the most favorable method used by engineers in designing work for stabilization of soft ground for road embankment, and foundation for liquid structure. Easy installation and cheaper cost are among the factors that make stone column more preferable than other method. Furthermore, stone column also can acts as vertical drain to incre...