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1 – 10 of 40Fawaz Alshihre, Ezekiel Chinyio, Chinny Nzekwe-Excel and Emmanuel I. Daniel
The study explored the disparity between construction clients and contractors on what constitutes “client satisfaction”. Such disparity is important because it can lead to…
Abstract
Purpose
The study explored the disparity between construction clients and contractors on what constitutes “client satisfaction”. Such disparity is important because it can lead to different conclusions and thus disagreement on the assessment of project success.
Design/methodology/approach
The philosophical stance was interpretivism, thus the qualitative methodology was adopted. Employing purposive sampling, 30 interviews with clients and another 30 interviews with contractors were conducted in Saudi Arabia. The data obtained were evaluated by thematic analysis.
Findings
The results indicate differences in the consensus ad idem (meeting of the minds) between clients and contractors in terms of both their perceptions and prioritisation of the attributes that underpin client satisfaction. For example, some contractors thought that using advanced technologies was very important for client satisfaction, whereas some clients preferred the contractors to be honest with them.
Research limitations/implications
The data collection was limited to Saudi Arabia and only the views of clients and contractors were studied, thereby limiting the generalisability of the findings.
Practical implications
The identification of the differing priorities of clients and contractors on client satisfaction provides an informed basis to make more concerted efforts to satisfy clients and minimise disputes on projects in Saudi Arabia.
Originality/value
The study contrasted the views of clients and contractors simultaneously on the subject matter of client satisfaction in relation to project success, and analysed this through the lens of consensus ad idem. The key influences on clients' satisfaction in Saudi Arabia are also presented.
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Chigoziri N. Njoku, Temple Uzoma Maduoma, Wilfred Emori, Rita Emmanuel Odey, Beshel M. Unimke, Emmanuel Yakubu, Cyril C. Anorondu, Daniel I. Udunwa, Onyinyechi C. Njoku and Kechinyere B. Oyoh
Corrosion is a major concern for many industries that use metals as structural or functional materials, and the use of corrosion inhibitors is a widely accepted strategy to…
Abstract
Purpose
Corrosion is a major concern for many industries that use metals as structural or functional materials, and the use of corrosion inhibitors is a widely accepted strategy to protect metals from deterioration in corrosive environments. Moreover, the toxic nature, non-biodegradability and price of most conventional corrosion inhibitors have encouraged the application of greener and more sustainable options, with natural and synthetic drugs being major actors. Hence, this paper aims to stress the capability of natural and synthetic drugs as manageable and sustainable, environmentally friendly solutions to the problem of metal corrosion.
Design/methodology/approach
In this review, the recent developments in the use of natural and synthetic drugs as corrosion inhibitors are explored in detail to highlight the key advancements and drawbacks towards the advantageous utilization of drugs as corrosion inhibitors.
Findings
Corrosion is a critical issue in numerous modern applications, and conventional strategies of corrosion inhibition include the use of toxic and environmentally harmful chemicals. As greener alternatives, natural compounds like plant extracts, essential oils and biopolymers, as well as synthetic drugs, are highlighted in this review. In addition, the advantages and disadvantages of these compounds, as well as their effectiveness in preventing corrosion, are discussed in the review.
Originality/value
This survey stresses on the most recent abilities of natural and synthetic drugs as viable and sustainable, environmentally friendly solutions to the problem of metal corrosion, thus expanding the general knowledge of green corrosion inhibitors.
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David Oloke, Louis Gyoh, Emmanuel Itodo Daniel, Olugbenga Oladinrin and Nagwan Abdallah
This study aims to understand the impact of the Covid-19 pandemic disruptive event on delivery of the built environment degree apprentice programme in higher education in the UK…
Abstract
Purpose
This study aims to understand the impact of the Covid-19 pandemic disruptive event on delivery of the built environment degree apprentice programme in higher education in the UK and identify the key strategies to minimise the effect.
Design/methodology/approach
A qualitative approach was used to collect and analyse data from a sample set of built environment degree apprenticeship stakeholders. Semi-structured interviews were conducted with 17 key stakeholders to collate emerging themes on their perceptions of the impacts of the pandemic and strategies to adopted to minimise it.
Findings
The investigation reveals that the core impacts of Covid-19 on the apprentices training programme are lack of access to the site, furlough, limited access to off the job training, limited interaction with tutors and peers, too much time on the screen, limited pastoral care and lack of contact with a mentor. The census from the research participants is that despite the development and gain with the various virtual platform used during pandemic physical meetings with their mentor remain pivotal to the built environment apprentices learning and training.
Practical implications
The results provide relevant stakeholders and actors supporting degree apprentices training programmes (training providers and employers, among others) with the information needed to improve the delivery of built environment degree apprenticeship training programmes during a disruptive event Covid-19. The study identifies various strategies to minimise the impact of disruptive events on the apprentices training, including technology, regular meeting with mentors online, and personal and pastoral care.
Originality/value
The study is the first to document the impact of the Covid-19 pandemic on degree apprenticeship programs in the built environment. This study provides an in-depth understanding of how these programs have been affected and offers potential solutions to reduce or mitigate potential damage. The research will inform future policy decisions related to degree apprenticeship programs in the built environment.
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Douglas Aghimien, Clinton Ohis Aigbavboa, Daniel W.M. Chan and Emmanuel Imuetinyan Aghimien
This paper presents the findings from the assessment of the determinants of cloud computing (CC) deployment by construction organisations. Using the…
Abstract
Purpose
This paper presents the findings from the assessment of the determinants of cloud computing (CC) deployment by construction organisations. Using the technology-organisation-environment (TOE) framework, the study strives to improve construction organisations' project delivery and digital transformation by adopting beneficial technologies like CC.
Design/methodology/approach
This study adopted a post-positivism philosophical stance using a deductive approach with a questionnaire administered to construction organisations in South Africa. The data gathered were analysed using descriptive and inferential statistics. Also, the fusion of structural equation modelling (SEM) and machine learning (ML) regression models helped to gain a robust understanding of the key determinants of using CC.
Findings
The study found that the use of CC by construction organisations in South Africa is still slow. SEM indicated that this slow usage is influenced by six technology and environmental factors, namely (1) cost-effectiveness, (2) availability, (3) compatibility, (4) client demand, (5) competitors' pressure and (6) trust in cloud service providers. ML models developed affirmed that these variables have high predictive power. However, sensitivity analysis revealed that the availability of CC and CC's ancillary technologies and the pressure from competitors are the most important predictors of CC usage in construction organisations.
Originality/value
The paper offers a theoretical backdrop for future works on CC in construction, particularly in developing countries where such a study has not been explored.
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Emmanuel Itodo Daniel and Olalekan Oshodi
The purpose of this study is to present an overview of the existing knowledge on the combined application of lean, off-site and simulation (LOS) in housing delivery.
Abstract
Purpose
The purpose of this study is to present an overview of the existing knowledge on the combined application of lean, off-site and simulation (LOS) in housing delivery.
Design/methodology/approach
A systematic literature review approach was adopted. Based on a comprehensive search using Scopus, Web of Science and the International Group for Lean Construction databases, 66 relevant journal articles were identified and analysed.
Findings
This study found that the most significant impacts of the combined application of LOS in housing delivery are the capacity to visualise the production processes as a whole in real time, exposure and removal of non-value-adding activities from the production and faster delivery. However, the combined application of LOS is low compared to a single application of each technique in housing delivery.
Practical implications
The results provide relevant stakeholders and actors in the housing sector (private and public housing developers, off-site housing manufacturers and constructors, housing associations and government housing agencies, among others) with the information needed to improve the outcomes of housing delivery through the application of LOS.
Originality/value
This study contributes to the ongoing debate on addressing the global housing shortage by presenting an integrated overview of the existing knowledge on the impact of the nexus of LOS and providing compelling evidence for its usage in housing delivery. It also demonstrates how the combined application of LOS supports the achievement of the flow and value view in the transformation flow value model, which was not previously reported.
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Daniel Ofori-Sasu, Benjamin Mekpor, Eunice Adu-Darko and Emmanuel Sarpong-Kumankoma
This paper aims to examine the interaction effect of regulations (monetary and macro-prudential) in explaining the possible non-linear effect of bank risk exposures (credit risk…
Abstract
Purpose
This paper aims to examine the interaction effect of regulations (monetary and macro-prudential) in explaining the possible non-linear effect of bank risk exposures (credit risk and insolvency risk) on banking stability in Africa.
Design/methodology/approach
The study uses a two-step system generalized method of moments (GMM) estimator for a data set of banks across 54 African countries over the period 2006–2020.
Findings
The authors find that the relationships between bank credit risk–bank stability and bank insolvency risk–bank stability are non-linear and characterized by the presence of optimal thresholds, which are 5.3456 for credit risk and 2.3643 for insolvency. Contrary to their positive effects below these optimal thresholds, credit risk and insolvency risk become negatively linked to bank stability in Africa. The authors find that macro-prudential action and monetary policy both have a positive and significant relationship with bank stability. The authors provide evidence to support that the marginal effect of excessive credit risk and insolvency risk on bank stability is reduced when interacted with monetary and macro-prudential regulations, and the impact is significant in strong institutional environment.
Research limitations/implications
Future research should extend data to include developing and emerging economies in the world. Also, policymakers, researchers and practitioners should consider different regulatory and institutional frameworks in explaining the relationship between the thresholds of bank risk exposures and bank stability in the world.
Practical implications
Regulatory authorities should have to deeply reform their financial systems, develop risk-based regulatory framework and effective supervision mechanism relating to appropriate techniques that maintain an optimal and desired level of bank risks and risk-taking behaviours required to ensure a stable banking system.
Originality/value
To the best of the authors’ knowledge, this is the first study to examine how different regulatory frameworks shape the non-linear impact of bank risk exposures on bank stability in Africa.
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Concept maps are popularly used within academic development spaces, especially to teach new concepts at beginner levels for undergraduate students. Their popularity is partly…
Abstract
Concept maps are popularly used within academic development spaces, especially to teach new concepts at beginner levels for undergraduate students. Their popularity is partly based on the fact that they employ visual tools such as charts, diagrams, pictures, tables, etc., to simplify concepts that students would otherwise consider dense. This paper reports on the findings of an extended orientation project conducted between February and June of 2022 with a small cohort of 15 first-year students registered in an entrepreneurship course at a vocational higher education institution in South Africa. The research question guiding this study is: How can concept maps inspire entrepreneurial thinking for first-year ECP students at a vocational institution in South Africa? Using Cultural-Historical Activity Theory (CHAT), I analysed the two iterations of the students' concept maps together with selected data from the focus group interviews. Key findings reported include the students' fuzzy knowledge of what entrepreneurship as a discipline entails, the planned career trajectories for most of the participating students, as well as indecisiveness as to whether the students will be pursuing entrepreneurship after graduation. In the language of CHAT, the above findings are described as presenting tensions between the subject, tool and object. This layer of analysis calls for an urgent re-think of how the students are recruited and orientated into the programme and how the curriculum is delivered at the first-year level.
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Titus Ebenezer Kwofie, Michael Nii Addy, Daniel Yaw Addai Duah, Clinton Ohis Aigbavboa, Emmanuel Banahene Owusu and George Felix Olympio
As public–private partnerships (PPPs) have become preferred and veritable approach to deliver affordable housing, the seemingly lack of understanding of the significant factors…
Abstract
Purpose
As public–private partnerships (PPPs) have become preferred and veritable approach to deliver affordable housing, the seemingly lack of understanding of the significant factors that impact on success has become a notable setback. This study aims to delineate significant factors that can support decisions in affordable PPP public housing delivery.
Design/methodology/approach
Largely, a questionnaire survey was adopted to elicit insights from practitioners, policymakers and experts to develop an evaluative decision support model using an analytical hierarchy process and multi-attribute utility technique approach. Further, an expert illustration was conducted to evaluate and validate the results on the housing typologies.
Findings
The results revealed that energy efficiency and low-cost green building materials scored the highest weighting of all the criteria. Furthermore, multi-storey self-contained flats were found to be the most preferred housing typology and were significantly influenced by these factors. From the model evaluation, the scores on the factors of sustainability, affordability, cultural values and accountability were consistent across all typologies of housing whereas that of benchmarking, governance and transparency were varied.
Originality/value
The decision support factors captured varied dimensions of key factors that impact on affordable PPP housing that have not been considered in an integrated manner. These findings offer objective and systematic support to decision-making in affordable PPP housing delivery.
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Uche Emmanuel Edike, Olumide Afolarin Adenuga, Daniel Uwumarogie Idusuyi and Abdulkabir Adedamola Oke
The purpose of this study is to advance the application of pulverised cow bone ash (PCBA) as a partial replacement of cement in soil stabilisation for the production of bricks…
Abstract
Purpose
The purpose of this study is to advance the application of pulverised cow bone ash (PCBA) as a partial replacement of cement in soil stabilisation for the production of bricks. The study investigated the impact of PCBA substitution on the characteristic strength of clay bricks under variant curing media.
Design/methodology/approach
Dried cow bones were pulverised, and an energy-dispersive X-ray fluorescence test was conducted on PCBA samples to determine the chemical constituents and ascertain the pozzolanic characteristics. Ordinary Portland cement (OPC) and PCBA were blended at 100%, 75%, 50%, 25% and 0% of cement substitution by mass to stabilise lateritic clay at 10% total binder content for the production of bricks. The binder-to-lateritic clay matrixes were used to produce clay bricks and cylinders for compressive and splitting tensile strength tests, respectively.
Findings
The study found that PCBA and OPC have similar chemical compositions. The strength of the clay bricks increased with curing age, and the thermal curing of clay bricks positively impacted the strength development. The study established that PCBA is a suitable substitute for cement, up to 25% for stabilisation in clay brick production.
Practical implications
Construction stakeholders can successfully use a PCBA-OPC binder blend of 1:3 to stabilise clay at 10% total binder content for the production of bricks. The stabilised clay bricks should be cured at an elevated temperature of approximately 90°C for 48 h to achieve satisfactory performance.
Originality/value
The PCBA-OPC binder blend provides adequate soil stabilisation for the production of clay bricks and curing the clay bricks at elevated temperature. This aspect of the biomass/OPC binder blend has not been explored for brick production, and this is important for the reduction of the environmental impacts of cement production and waste from abattoirs.
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