Oluwaseun S Dosumu
University Of Rwanda, Construction Management, Department Member
- University of Lagos,Nigeria, Building, Department Memberadd
- Building, Project Management, Performance, Construction Industry, Project manager, Construction Project Management, and 6 moreConstruction Engineering and Management, System Dynamics Modeling, System Dynamics, Sustainable Development, Sustainable Building Design, and Alternative Building Materials; Concrete Technology; Procurement Systems:edit
- I am a chartered Builder. I am Lecturer of construction management. I conduct researches in construction management, sustainability and system dynamicsedit
There is continual argument about the potential negative impacts that poor indoor environmental quality can have on the wellbeing and comfort of occupants. The aim of this study is to investigate the effect of indoor environmental quality... more
There is continual argument about the potential negative impacts that poor indoor environmental quality can have on the wellbeing and comfort of occupants. The aim of this study is to investigate the effect of indoor environmental quality on the comfort of occupants of social mass housing projects in South Africa. The study was conducted in Ekurhuleni Metropolitan Municipality (EMM) where low-salary earners mostly reside in South Africa. The descriptive survey research method was adopted and the questionnaire used for the study was targeted at occupants of low-salary housing units in South Africa. The convenience sampling technique was employed for the study. The methods of data analysis basically include percentages and mean item scores. The results of the study indicate that furnishing, quality of air and thermal comfort on the fourth floor does not give occupants satisfactory comfort. The thermal comfort on the third floor is also unsatisfactory. Cleanliness and general maintenance and acoustic quality on the first floor are unsatisfactory to building occupants. Based on these, it was recommended that the acoustic designs of units on the first floor should be increased beyond those of second floor and above. It also recommended that attention should be specially paid to general cleanliness and maintenance of the first floors of building units. Finally, it was recommended that the thermal comfort of building units needs to generally be improved from the design stage. The significance of this study is that building designers and clients will subsequently see the reason to pay more attention to the thermal comfort during construction planning and increase acoustic and cleanliness activities for the first floor of buildings
Nominated Suppliers procurement is a method that is being currently embraced in South Africa. However, it is unclear how the method is being administered in the construction industry. The aim of the study is to gain a reputable knowledge... more
Nominated Suppliers procurement is a method that is being currently embraced in South Africa. However, it is unclear how the method is being administered in the construction industry. The aim of the study is to gain a reputable knowledge into the challenges associated with Nominated supplier's procurement method in the South Africa construction industry. Out of the 90 questionnaires that were distributed, 67 (giving a response rate of 73%) were retrieved and used for the study. Data collection was based on random sampling technique from construction professionals and merchants such as project managers, clients, manufactures, suppliers, engineers and quantity surveyors. The findings reveal that inadequate planning and scheduling by the supplier, fluctuation of prices associated with the prevailing supply-demand cycle and lack of commitment by material supplier are some of the challenges of nominated supplier's procurement method in South Africa.
The construction industry has generally been tagged with poor project performance. Cost and time overruns are the leading causes of poor performance. Design and construction errors are equally leading causes of cost and time overruns.... more
The construction industry has generally been tagged with poor project performance. Cost and time overruns are the leading causes of poor performance. Design and construction errors are equally leading causes of cost and time overruns. The objectives of this study are to investigate the prevalent types of errors in construction documents, the cost implication of the errors, the time implication of the errors, and strategies adopted to mitigate the errors. The study involves an interview of construction professionals on 51 selected building projects across the southwestern States of Nigeria through the non-probabilistic convenience sampling technique. The findings of the study indicated that the Nigerian construction industry is largely dominated by the use of traditional procurement method and many construction projects lack complete construction documents. Also, errors in construction documents added about 9% to the contract sum and 31% to cost overrun. It also added about 21...
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Research Interests: Business and Procurement
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Research Interests: Engineering and Routledge
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Research Interests: Engineering and Routledge
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Sustainable construction is hardly practised in Africa, despite the consistent campaign for its adoption. This study investigates the drivers and effects of sustainable construction in South Africa. The quantitative survey research design... more
Sustainable construction is hardly practised in Africa, despite the consistent campaign for its adoption. This study investigates the drivers and effects of sustainable construction in South Africa. The quantitative survey research design was adopted for the study and the respondents were the construction organisations in Johannesburg, South Africa. The study identified 17 significant drivers of sustainable construction, with construction cost as the dominant variable. The important environmental (8), economic (12), and social benefits (7) of sustainable construction were also determined. The challenges (24) of sustainable construction were also identified. The study recommended that measures for low construction cost should be put in place, and awareness campaigns should be enhanced. Economic benefits are still behind environmental benefits, and this could affect some prospective adopters. Lack of knowledge and weak economies were prevalent challenges that underscore the need for W...
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Research Interests: Engineering and Routledge
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Research Interests: Engineering and Routledge
Research Interests: Engineering and Routledge
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PurposeThis paper aims to investigate the level of awareness about, adoption of and willingness to adopt light steel (LS) for building projects. It also assessed the benefits, challenges and solutions to the challenges of adopting LS for... more
PurposeThis paper aims to investigate the level of awareness about, adoption of and willingness to adopt light steel (LS) for building projects. It also assessed the benefits, challenges and solutions to the challenges of adopting LS for building projects. Design/methodology/approachThe quantitative (questionnaire) research method was used for the study. The research design was survey in nature. The whole-population cluster sampling technique was adopted. The clusters were the LS buildings from two (Western Cape and Gauteng) out of the eight provinces in South Africa. The respondents were the construction organizations that have executed LS building projects in the selected provinces. Hence, 56 firms filled and returned the questionnaire. Data analysis was done with frequency, mean scores, t-test and analysis of variance (normality of data distribution assumed). FindingsResults indicated that, out of the 29 areas of application of LS identified in literature, respondents were aware ...
Research Interests: Business and Engineering
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PurposeThe need to improve sustainable construction with the appropriate technology adoption in the fourth and fifth industrial revolutions cannot be overemphasized. This study modelled the adoption of Internet of things (IoT)... more
PurposeThe need to improve sustainable construction with the appropriate technology adoption in the fourth and fifth industrial revolutions cannot be overemphasized. This study modelled the adoption of Internet of things (IoT) technologies in the construction industry to improve sustainable construction. Consequently, the study would assist construction stakeholders and policymakers in achieving sustainable construction through concerted efforts toward improving IoT adoption.Design/methodology/approachThe study obtained the IoT technologies and the challenges of IoT adoption in the construction industry through a literature review. Subsequently, the awareness (knowledge of the existence and uses) of IoT technologies, the significance of the challenges and the level of adoption of the IoT technologies were tested on construction stakeholders in Kigali with a structured questionnaire. Consequently, a structural equation model of IoT adoption was developed.FindingsThe structural equati...
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The differences in construction methods between different forms of slabs construction tend to result into variation in the cost of the slabs for any building project. Thus, this study aims at assessing the variation in construction cost... more
The differences in construction methods between different forms of slabs construction tend to result into variation in the cost of the slabs for any building project. Thus, this study aims at assessing the variation in construction cost among various construction methods available for hollow and solid floors in construction projects within Lagos State. The research design for this study was a survey design approach and the population of the study are active professionals (Architects, Civil Engineers, Builders, Quantity Surveyors, Consultant) and contractors because they are the major participants in the construction activities of the construction industry in Lagos State, Nigeria. The research is based on 46 returned questionnaires out of the 60 that was administered. The data from the questionnaires were analyzed using descriptive tools such as frequencies, percentage and mean values. The hypotheses were tested with paired sample t-test and it was found that the system or method of ...
The issue of continual poor project performance in the construction industry remains unresolved and there is need for improvement. In view of improving project performance, the study aims at investigating the frequent causes of errors in... more
The issue of continual poor project performance in the construction industry remains unresolved and there is need for improvement. In view of improving project performance, the study aims at investigating the frequent causes of errors in construction contract documents. The survey research design and mixed research methods were used for the study. The respondents for the study consist of 86 consulting and 98 contracting firms that have been engaged on building projects that is above one floor between 2012 and 2015. Fifty one (51) interviews were also conducted on contractors, project managers and consultants on the projects they were involved and can equally provide necessary information for the study. Statistical Package for Social Sciences (SPSS 20) was used for the analysis of the study. The study found that the frequent causes of the errors in contract documents are frequent design changes by clients, lack of adequate time to prepare documents and design management experience am...
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The activities of the construction industry require that alternative construction materials be used for construction projects, especially in developing countries like those in Africa. The conventional construction materials are no longer... more
The activities of the construction industry require that alternative construction materials be used for construction projects, especially in developing countries like those in Africa. The conventional construction materials are no longer sustainable because they have caused devastating environmental damage and climate changes among others. The objectives of this study are to investigate the available local materials for construction projects in Africa, and the barriers to the adoption of local construction materials as alternatives for construction projects. The literature review approach was used for the study. This was achieved by conducting a literature search on the construction materials that have been adopted in Africa for construction projects and the barriers to their adoption. The results of the study were discussed and presented in tabular form. The findings of the research indicate that about 16 materials have been adopted across African countries for construction projects. However, the continued adoption of the materials has been hampered by many challenges, among which is the inability to produce the materials at a large scale for construction projects. Hence, the study conceptualized that the barriers to the adoption of local materials for construction projects are both developmental and in the form of government policies. Recommendations were made on the approach to mitigating the barriers to the adoption of local construction materials in Africa.
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Research Interests: Engineering and Building
One of the highly rated causes of poor performance is errors in contract documents. The objectives of this study are to investigate the prevalent errors in contract documents and their effects on construction projects. Questionnaire... more
One of the highly rated causes of poor performance is errors in contract documents. The objectives of this study are to investigate the prevalent errors in contract documents and their effects on construction projects. Questionnaire survey and 51 case study projects (mixed method) were adopted for the study. The study also involved the use of Delphi technique to extract the possible errors that may be contained in contract documents; it did not however constitute the empirical data for the study. The sample of the study consists of 985 consulting and 275 contracting firms that engaged in the construction of building projects that were completed between 2013 and 2016 and were above the ground floor. The two-stage stratified random sampling technique was adopted for the study. The data for the study were analysed with descriptive and inferential statistics (based on Shapiro-Wilk’s test). The results of the study indicate that errors in contract documents were moderately prevalent. How...
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Abstract Design error has been adjudged to be the main source of variation. However, empirical studies of the cost impact of design errors on variation are scarce. Therefore, this study aims to determine the impact of design errors on... more
Abstract Design error has been adjudged to be the main source of variation. However, empirical studies of the cost impact of design errors on variation are scarce. Therefore, this study aims to determine the impact of design errors on variation cost by investigating the prominent design errors that lead to variation, causes of variation in construction projects and impact of design errors on variation cost. The study was conducted on selected building projects in Nigeria. The mixed method (interview and case study) of research was adopted in the collection of necessary data. Interview was conducted among construction experts to obtain information on causes of variation on building projects. Thirty documents which include valuation breakdowns and variation/change orders documents were obtained by convenience sampling technique and used for the extraction of design errors leading to variations and their associated costs. The data were analyzed with frequencies, sums and percentages. The study found that poor working drawing and lack of coordination among documents are the major causes of variation. Omission of details on structural drawing and wrong description in specifications of architectural drawings among others are prominent design errors that lead to variation. The study indicates that design error account for up to 36% of variation cost. The study concludes that variation costs can be minimized to a large extent if government policies to ensure proper contract documentation are put in place and professionals are restricted from doing the works of others professionals.
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Human resources play a key role in the achievement of construction projects. This study investigated the recruitment practices of construction employers in Rwanda. The problem of the study is the lack of empirical evidence to support the... more
Human resources play a key role in the achievement of construction projects. This study investigated the recruitment practices of construction employers in Rwanda. The problem of the study is the lack of empirical evidence to support the recruitment and selection practices of construction employers in Rwanda. Similar studies are abundant in other sectors of the economy but very scarce in the construction industry. The descriptive survey research design was adopted for the study. A closed-ended questionnaire was used for data collection. The population of the study are the construction organisations that employ construction workers in Rwanda. Hence, the population of the study is the 580 construction organisations that are officially working in Rwanda. A sample of 80 firms used for the study were determined with the use of Slovin’s formula. The findings of the study indicated that requests for the curriculum vitae, cover letter, face-to-face interview, submission of applications with...
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The study aims to examine the factors affecting the IEQ of buildings with respect to type of building unit, gender, age, ethnicity and directions that the windows of occupants' building units are facing. The study was conducted in... more
The study aims to examine the factors affecting the IEQ of buildings with respect to type of building unit, gender, age, ethnicity and directions that the windows of occupants' building units are facing. The study was conducted in Ekurhuleni Metropolitan Municipality (EMM) of South Africa. The descriptive (questionnaire) survey research design (quantitative method) was adopted in the study. The convenience sampling technique was used to collect data for the study. The method of data analysis includes percentages, mean scores, t-test statistic and one-way analysis of variance. The results of the study indicate that the factors investigated in the study were significantly optimum for the IEQ of buildings. However, inferential statistics show that the respondents differed on some factors of IEQ based on age, gender, ethnicity and building unit. Based on the findings, the study concludes that, the factors affecting IEQ of buildings vary according to age, gender and type of building ...
Design errors and variations are inherently part of many construction projects and require deliberate effort to combat. The literature reviewed indicates that empirical studies of the cost effect of design-error-induced variations are... more
Design errors and variations are inherently part of many construction projects and require deliberate effort to combat. The literature reviewed indicates that empirical studies of the cost effect of design-error-induced variations are scarce. This study investigates the causes of variation on building projects, the frequent design errors that lead to variation, the effects of design error on variation cost, and solutions to design-error-induced variation in design documents. A mixed methods research (interviews and 30 case study building projects) was used to collect the necessary data for the study. Interviews were conducted with 25 construction professionals to obtain information on the causes of variation on building projects and solutions to design-error-induced variation on building construction projects. Thirty documents including valuation breakdowns and variation/change order documents were obtained by convenience sampling technique and used for the extraction of design errors leading to variations and their associated costs. The data was analysed with frequencies and percentages. The study found that poor working drawing and lack of coordination among design documents are the major causes of variation. Errors in design calculations and wrong descriptions in specifications are prominent design errors that led to variation. Design errors account for roughly 36% of the variation cost of building projects. Structural and architectural drawings contain the largest number of errors among design documents, but electrical and mechanical documents have
The influence of project management on construction projects anywhere in the world cannot be underestimated as poor project management has grave effects on the stakeholders (clients, consultants, contractors and users) and the projects at... more
The influence of project management on construction projects anywhere in the world cannot be underestimated as poor project management has grave effects on the stakeholders (clients, consultants, contractors and users) and the projects at large. The aim of this study is to investigate the level of awareness of project managers of their roles on construction projects and determine the deficient project management roles that lead to abandonment of construction projects. The study is survey in nature and uses both questionnaire and interview (confirmatory) to elicit necessary information for the study. The population of the study consists of abandoned building projects in Lagos, Nigeria. Sixty-six 66 questionnaires out of the 80 that were administered on project managers of abandoned building projects were returned and used for the study. Thus, the project managers of public and private abandoned projects were used for the study and the results of the study were analyzed with frequencies, percentages and mean item scores. The results of the study indicate that out of the 16 project management roles identified, project managers are very aware of two and aware of the remaining 14. Also, the study found that deficiency in 13 of the roles had high degrees of leading to project abandonment. The conclusion of the study is that project managers are aware of their roles on construction projects but the roles were not performed on those projects, thus leading to project abandonment. In view of this, the study further concludes that there would be some uninvestigated exogenous factors that are responsible for the non-performance of PM roles on those projects. Hence, the study recommends that further studies into why project managers fail to perform their roles on construction projects should be conducted. The study also recommends that project managers must engage in adequate planning, cost control and resource management to prevent project abandonment
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The construction industry is plagued by risks above other industries due to its unique features which include the complexity of building activities, extended period of construction, complicated processes, financial intensity and dynamic... more
The construction industry is plagued by risks above other industries due to its unique features which include the complexity of building activities, extended period of construction, complicated processes, financial intensity and dynamic organisational structure. These risks are not adequately dealt with and result in increased cost, time and reduced quality. While many types of research have been conducted on construction risks, only a few types of research have investigated the impact of risk (at tendering and procurement stage) on construction projects before they commence. Meanwhile, risk issues are better solved at bidding and procurement phase than construction phase as the case has been. Therefore, this paper examines the likelihood, degree of impact and probability of risk occurrence on tendering and procurement of construction projects. It also investigates the significant sources of tendering and procurement risks, the level of awareness and adoption of risk management techniques in construction tendering and procurement. The questionnaire for the study was administered on building contractors and consultants. A total of 44 questionnaires were retrieved and used for the analysis of the study. The statistical tools used for analysis are frequencies, percentages, mean scores and t test. The findings of the study revealed 17 significant sources of risk among the 35 that were investigated. Risks with high likelihood of occurrence, the degree of impact and high probability of occurrence were also indicated in the study. Based on the findings, it was concluded that respondents are aware and adopt risk management techniques on construction projects, but their adoption is at response level rather than identification level. Therefore, the recommendation of the study is that awareness should be created on the need for risk identification before construction projects commence. This should be implemented at professional and organizational level. Construction stakeholders should guard against risks with a high degree of impact and probability of occurrence during tendering and procurement of construction projects. Therefore, this study contributes to the body of knowledge by investigating the significant sources of risks to tendering and procurement, likelihood of risk occurrence, impact of risks and probability of risk occurrence in tendering and procurement.
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Design error has been adjudged to be the main source of variation. However, emp irical studies of the cost impact of design errors on variation are scarce. Therefore, this study aims to determine the impact of design errors on variation... more
Design error has been adjudged to be the main source of variation. However, emp irical studies of the cost impact of design errors on variation are scarce. Therefore, this study aims to determine the impact of design errors on variation cost by investigating the prominent design errors that lead to variation, causes of variation in construction projects and impact of design errors on variation cost. The study was conducted on selected building projects in Nigeria. The mixed method (interview and case study) of research was adopted in the collection of necessary data. Interview was conducted among construction experts to obtain informat ion on causes of variation on building projects. Thirty documents which include valuation breakdowns and variation/change orders documents were obtained by convenience sampling technique and used for the extract ion of design errors leading to variat ions and their associated costs. The data were analy zed with frequencies, sums and percentages. The study found that poor working drawing and lack of coordination among documents are the major causes of variation. Omission of details on structural drawing and wrong description in specifications of architectural drawings among others are pro minent design errors that lead to variation. The study indicates that design error account for up to 36% of variation cost. The study concludes that variation costs can be minimized to a large extent if govern ment policies to ensure proper contract documentation are put in place and professionals are restricted fro m doing the works of others professionals.
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The issue of continual poor project performance in the construction industry remains unresolved and there is the need for improvement. In view of improving project performance, this study aims at investigating the frequent causes of... more
The issue of continual poor project performance in the construction industry remains unresolved and there is the need for improvement. In view of improving project performance, this study aims at investigating the frequent causes of errors in construction contract documents. A mixed method (questionnaire survey and interview) research approach was used for the study. The respondents for the study (selected with two stage stratified-random sampling technique) consist of 86 consulting and 98 contracting firms that have been engaged on building projects that have more than one floor between 2012 and 2015. Fifty-one (51) interviews were also conducted with contractors, project managers and consultants on the projects they were involved on and that provided further necessary information for the study. The tools that were used for the analysis of this study include descriptive (sums, frequency and percentages) and inferential (t test) statistics. The stu dy found that the causes of errors in contract documents comprise of frequent design changes by clients, lack of adequate time to prepare documents and design management experience among others. Based on the findings, it was concluded that the causes of errors in contract documents vary from one state to the other. It was also concluded that there is difference in the causes of errors in contract documents based on types of building, services rendered by construction organisations and states in South West, Nigeria. However, there is no significant difference in the causes of errors in contract documents based on procurement method except where there is incomplete documentation or contracting organisations have overlapping activities. The study recommended that the errors identified should always be prevented from occ urring if cost and time overrun are to be minimized. Also since most of the causes identified are related to consultants, it was recommended that all designs should go through quality assurance process.
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o r g a n i z a t i o n , t e c h n o l o g y a n d m a n a g e m e n t i n c o n s t r u c t i o n · a n i n t e r n a t i o n a l j o u r n a l · 5(1)2013 676 Errors entail different meanings and usages depending on how it is... more
o r g a n i z a t i o n , t e c h n o l o g y a n d m a n a g e m e n t i n c o n s t r u c t i o n · a n i n t e r n a t i o n a l j o u r n a l · 5(1)2013 676 Errors entail different meanings and usages depending on how it is conceptualized. The purpose of this paper is to determine the causes, effects and remedies of the errors in Nigerian construction documents. A structured questionnaire was administered on ninety consultants (Builders, architects, engineers and quantity surveyors) obtained from regulatory bodies of each profession. Forty four questionnaires were returned and this gives a response rate of 49%. The findings of the research show that clients are the major stakeholders responsible for the generation of errors in Nigerian construction documents. The causes of the errors are lack of adequate documentation, poor communication, negligence and changes to specifications among others and the effects on construction projects include project abandonment, delays, rework, dissatisfaction by project owners and lack of confidence in project consultants. The suggested solutions include provision of comprehensive information, good communication among project teams, effective and efficient project management, constructability, design review management and adequate financial provision. The study recommends that clients should allow adequate time for the preparation of construction documents and adopt appropriate procurement method. The designers were advised to engage in partnering while preparing construction documents. Keywords 677 o .s. d o s u m u · o .a a d e n u g a · c a u s e s , e f f e c t s a n d r e m e d i e s o f e r r o r s i n n i g e r i a n c o n s t r u c t i o n d o c u m e n t s · pp 676-686
The paper examines the impact of risks on tendering and procurement of building projects in Lagos state. The objectives are to investigate the significant sources of risks to tendering and procurement, probability of occurrence of risks... more
The paper examines the impact of risks on tendering and procurement of building projects in Lagos state. The objectives are to investigate the significant sources of risks to tendering and procurement, probability of occurrence of risks in tendering and procurement, level of awareness and adoption of risk management techniques in construction tendering and procurement. The questionnaire for the study was administered on building contractors and consultants. 44 questionnaires were retrieved and used for the analysis of the study through SPSS 20 software. The findings of the study revealed that the significant sources of risk are bad management, errors and omission, unskilled staff and economical regulations. Risk types that have high likelihood of occurrence are safety of works, bribery, inadequate cash flow, insurance, contractor default, inappropriate specifications, and economic pressure and market conditions. In the same vein risk types that have the greatest impact on tender are safety of workers, interest rate, disposal of bad plant and equipment, unforeseen site condition, contractor default, change in scope, defective work and project management. Thus, from calculation, risks that have high probability of occurrence are equipment failure, market condition, financial default by client, insurance, inadequate cash flow, and bribery. The study concludes that in spite of the awareness of respondents of risk management techniques, their adoption are mainly at response level rather than identification and assessment level.
This paper discusses the areas where productivity improvements are required in the Nigerian construction industry. The questionnaire used for the study was adopted from the research of Arditi and Mochtar (2000) with additional questions... more
This paper discusses the areas where productivity improvements are required in the Nigerian construction industry. The questionnaire used for the study was adopted from the research of Arditi and Mochtar (2000) with additional questions on the factors influencing productivity and the actions thought necessary to improve productivity in the Nigerian construction industry. A combination of judgmental and snowballing (both non probability) sampling techniques were used for the study. The reason for this is that , the combination gives a strong semblance of probability sampling technique and this advantage makes it possible to make conclusive inference based on the findings of the research. The questionnaire for the study was distributed among construction contractors and design professionals that were located within the Lagos Island axis of Lagos state. Sixty-four (64) questionnaires were retrieved out of the one hundred and eighty (180) that were distributed to the respondents and this gives a total of 35.6% retrieval. The results of the research show that productivity improvement is mostly required in the Nigerian construction industry in four categories which are communication, management, computer utilization and labour. It was also discovered that most Nigerian contractors and designers are not willing to contribute funds to support programmes aimed at improving construction productivity. However, they were willing to serve as members of groups that would identify productivity problems and attend construction productivity conferences and meetings.
The construction industry has been largely characterized by the conventional method of construction and the clamour for modern construction techniques has been popularized. The use of Light Gauge Steel (LGS) has been introduced to the... more
The construction industry has been largely characterized by the conventional method of construction and the clamour for modern construction techniques has been popularized. The use of Light Gauge Steel (LGS) has been introduced to the construction industry over the years without proper knowledge of the willingness of stakeholders to adopt and the benefits of adopting LGS for construction. The objectives of this study are to investigate the willingness to adopt and benefits of adopting LGS in the construction industry. The quantitative method was used for the research. The study is survey in nature and it involves collection of data from consultants and contractors that have been involved in LGS construction in South Africa. The data for the study was collected from the two provinces (Gauteng and Western cape) of South Africa. The analysis of data for the study was done through percentages and mean item scores. The results of the study showed that stakeholders were willing to adopt LGS for interior wall panel, exterior wall panel, ceiling joist, structural sheathing, wall frames and floor joist among others. Also, the key benefits of adopting LGS are high rigidity and strength, toughness with lessened environmental impacts, simplicity of construction, security and cleaner construction, and off-site production. Based on the findings of the study, the study concluded that construction stakeholders were willing to adopt LGS for construction, although based on the mean scores of variables, the willingness was not a matter of necessity. The study also concluded that, LGS construction has many benefits to the construction industry inspite of the moderate willingness to adopt it for construction.
One of the buildings in tertiary institutions that require adequate and up‐to‐date maintenance is the students’ halls of residence where a great deal of students’ time is spent. The aim of this study is to investigate the maintenance... more
One of the buildings in tertiary institutions that require adequate and up‐to‐date maintenance is the students’ halls of residence where a great deal of students’ time is spent. The aim of this study is to investigate the maintenance strategy adopted for hostel accommodations in tertiary institutions, the effectiveness of the strategy and the operational state of the elements of the hostel accommodations. The survey research design (questionnaire) was adopted for the study and the population of the study is the tertiary institutions in Lagos and Ogun state that have hostel accommodations within their campuses. Hence, 38 hostel accommodations were used for the study. The respondents of the study were the hall managers, hall wardens and facility managers of the halls of residences. The frequency, percentages and mean scores were the statistical tools used for the analysis of the study. The results of the study show that the corrective maintenance strategy is the most commonly used method for hostel accommodations. The result also indicates that the current maintenance strategy is not effective on the elements of hostel accommodations considered in this study. Also, the important facilities in hostels (bunks/mattresses/wardrobe, electricity, plumbing etc.) ranked least in terms of operational conditions. Based on the findings, it was concluded that the current method of maintenance is the most probable cause of the current uproar among students of higher learning and if changes are not made to the method, students’ unrests may get worse and get irredeemable. Therefore, the study recommended that the preventive and scheduled maintenance strategies should henceforth be embraced above the current corrective maintenance strategy. Also, government intervention by way of policy drive towards ensuring that higher institutions of learning embrace the preventive and scheduled maintenance strategy over the corrective method is recommended to improve the operational states of hostel facilities.
Keywords: Hostel accommodation, Maintenance strategy, Preventive maintenance, Scheduled maintenance, Tertiary institution.
Keywords: Hostel accommodation, Maintenance strategy, Preventive maintenance, Scheduled maintenance, Tertiary institution.
The construction industry has been largely characterized by the conventional method of construction and the clamour for modern construction techniques has been popularized. The use of Light Gauge Steel (LGS) has been introduced to the... more
The construction industry has been largely characterized by the conventional method of construction and the clamour for modern construction techniques has been popularized. The use of Light Gauge Steel (LGS) has been introduced to the construction industry over the years without proper knowledge of the willingness of stakeholders to adopt and the benefits of adopting LGS for construction. The objectives of this study are to investigate the willingness to adopt and benefits of adopting LGS in the construction industry. The quantitative method was used for the research. The study is survey in nature and it involves collection of data from consultants and contractors that have been involved in LGS construction in South Africa. The data for the study was collected from the two provinces (Gauteng and Western cape) of South Africa. The analysis of data for the study was done through percentages and mean item scores. The results of the study showed that stakeholders were willing to adopt LGS for interior wall panel, exterior wall panel, ceiling joist, structural sheathing, wall frames and floor joist among others. Also, the key benefits of adopting LGS are high rigidity and strength, toughness with lessened environmental impacts, simplicity of construction, security and cleaner construction, and off-site production. Based on the findings of the study, the study concluded that construction stakeholders were willing to adopt LGS for construction, although based on the mean scores of variables, the willingness was not a matter of necessity. The study also concluded that, LGS construction has many benefits to the construction industry inspite of the moderate willingness to adopt it for construction.
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The current methods of sourcing materials deplete environmental natural resources, causes climate change, carbon emission and poses health risks to human. The objective of this chapter is to investigate the ben efits and challenges of... more
The current methods of sourcing materials deplete environmental natural resources, causes climate change, carbon emission and poses health risks to human. The objective of this chapter is to investigate the ben efits and challenges of alternative building materials (ABM) in the con struction industry. The survey research design was adopted for the study which is quantitative in nature. The study was conducted in Gauteng province of South Africa due to its peculiarity among other provinces. Fifty (50) questionnaires were retrieved out the 98 that were distributed through the convenience sampling technique. The findings of the study *Corresponding author.