http://196.220.128.81:8080/xmlui/handle/123456789/208 2026-04-27T00:00:24Z http://196.220.128.81:8080/xmlui/handle/123456789/5523 ASSESSMENT OF KNOWLEDGE SPILLOVERS FROM FOREIGN MULTINATIONAL CONSTRUCTION CORPORATIONS TO INDIGENOUS CONSTRUCTION CONTRACTORS IN ABUJA, NIGERIA BAMISAYE, OLORUNFEMI PAUL This study assessed knowledge spillovers from foreign multinational construction corporations to indigenous construction contractors in Abuja, Nigeria. Primary data were collected through observation on some selected sites owned by both foreign and local firms and the administration of questionnaires to their construction professionals and other professionals working with other firms. A total of one hundred and fifteen questionnaires were administered; eighty-four were duly filled, returned and found suitable for analysis, representing a response rate of seventy-three percent. The data collected were analyzed using Percentiles, Mean Item Score, Factor Analysis, Mann Whitney U test and report writing. The results showed that the level of knowledge spillovers from foreign construction firms to local construction firms in Abuja is high. The study further revealed that the channels of spillovers frequently used in the construction industry include engaging local suppliers to supply most or all the needed materials and labour, local firms imitating foreign firms by acquiring more and advanced machineries and labour mobility by deliberation while the channels that are easy to use are engaging local suppliers to supply most or all the needed materials and labours for a particular project, engaging local subcontractors by the foreign firms to work on a particular section of the project and imitation of foreign firm's managerial practices. Competition in the area of technical competence, local firms imitating foreign firms by acquiring more and advanced machineries, and competition in the area of managerial competence were seen to be costly channels of spillover. In addition, the study identified ICT, access to finance, skill of local workers and employee‟s motivation as the key factors that facilitate effective knowledge spillovers. The study further revealed that corruption, economic instability, lack of good political leadership and lack of government confidence to consistently engage Nigerian contractors as the top barriers to knowledge spillovers in the construction industry. Based on the findings, the study recommended that the government, private sectors and construction regulators should come up with policies to enhance knowledge spillovers. Also, local contractors should seize the opportunity to use the easiest, cheapest and most effective channels of spillovers. Although, this study was restricted to the building projects; it can also be replicated in construction projects for further study. 2022-12-01T00:00:00Z http://196.220.128.81:8080/xmlui/handle/123456789/5374 DEVELOPMENT OF CARBON EMISSION PREDICTION MODEL FOR HALLS OF RESIDENCE IN TERTIARY INSTITUTION IN OGUN STATE, NIGERIA IBITOYE, OLAYINKA SEUN Extensive research has been carried out on operational carbon in the building industry in Nigeria while less consideration is given to embodied carbon. This is a challenge as embodied carbon accounts for about thirty percent of a building carbon emissions, this created a gap for this study. This study identified carbon intensive element of building projects, evaluated the relationship between embodied carbon and cost of building elements and developed a carbon prediction model that could serve as a tool for estimating embodied carbon in the building industry. Relevant data were extracted from Bills of quantities and project drawings of thirty halls of residence of tertiary institution in Nigerian. The data collected were analyzed using percentage to identify the carbon intensive elements, Pearson correlation was used to rank the significance of the relationship between embodied carbon and life cycle cost. In addition, regression analysis was used to establish the predictive power of the independent variables (floor area, gross internal floor area, wall area, number of floors and average building height) on embodied carbon. The regression model was trained and cross-validated to develop the model. Finishes, frames and upper floors were identified as the carbon intensive elements of building projects. The findings suggested that there was significant relationship between embodied carbon and life cycle cost as reducing embodied carbon led to significant reduction in the cost of the projects. Floor area and gross internal wall area were found to be the significant predictors of the model. The model successfully predicted embodied carbon of building projects at the accuracy of 96.7% which was considered reasonable. Based on the findings it was recommended that there is need for early design stage carbon estimation, prioritizing carbon intensive elements, and embracing low carbon alternative materials as these will go a long way to achieving carbon emission reduction in the industry. 2022-01-01T00:00:00Z http://196.220.128.81:8080/xmlui/handle/123456789/5373 ADOPTION OF ENERGY ECONOMICS PRINCIPLES FOR CONSTRUCTION PROJECTS IN LAGOS STATE, NIGERIA AKINPELU, TAIWO MARCUS Construction industry is a special one in comparison with other industry. It possesses the function of diverse materials and methodologies in which they are assemble to form final product known as building and infrastructure. These materials and processes are mostly traditional and noneffective in reducing consumption of energy in building which contributes more to emission of greenhouse gasses and global warming. Therefore, with the ultimate aim of reducing consumption of energy in building, the study assessed the adoption of Energy Economics Principles for Construction Projects with a view to check the awareness, usage and readiness to use in Nigeria Construction Industry. Primary data were collected through the administration of questionnaires to Architects, Quantity Surveyors, Builder, Mechanical Engineer and Electrical Engineer. A total of Three hundred and forty (340) were administered using convenience sampling techniques; two hundred and sixty-three (263) of them were returned and found suitable for analysis, representing a response rate of 76%. The data collected were analysed using Percentile, Mean item score and Factor Analysis. The result reveal that among listed energy economics principles, window blinds, timber panels, structural insulated panels, led light energy panel, HVAC, Photovoltaic solar panels are among the most aware, currently used and readiness to use. The study revealed that the drivers of adopting energy economics principles are two important cluster groups which are implementation drivers and advocating drivers. The implementation drivers are access to loans and grants, energy efficiency ratings, establishment of minimum standard for energy efficient materials. While advocating drivers are seminar and training; energy-efficiency as curriculum in tertiary institutions among others. The study further revealed that the barriers of adopting energy economics principles can be classified mainly into two groups which are Market related barriers, Synergy barriers, Technical barriers and Implementation barriers while the benefits to adopting energy economics principles are sustainability related benefits and building life-cycle related benefits. Based on findings , the study recommends that that adequate attention should be devoted to enlightenment of construction professionals on the importance of adopting energy economics principles; roundtable discussions on acceptable framework for implementation of energy economics principles involving discussions with academic community and construction professionals; Also there should be encouragement to developers through grants and loans for willing people ready to construct energy efficient homes. This study was limited to adoption of energy economics principles, further research can be done to examine the embodied energy in construction materials. 2021-08-01T00:00:00Z http://196.220.128.81:8080/xmlui/handle/123456789/5372 ASSESSMENT OF THE APPLICATION OF BIOMIMICRY PRINCIPLES IN THE CONSTRUCTION INDUSTRY IN LAGOS STATE, NIGERIA ADEKUNYE, OLUSEGUN JOHNSON Biomimicry is the multidisciplinary discipline where the form and concept of nature is tapped into in order to solve human needs as relating to different industries such as pharmaceutical, engineering, construction, agriculture, etc. The concept of biomimicry is evolving through the need for sustainable environment. This study assessed the application of biomimicry principles in the construction industry, the study unravelled the level of awareness of biomimicry concept that exists among the construction industry professionals. The study also assessed the areas of construction projects where biomimicry principles can be applied. Copies of a well-structured questionnaires were administered to the construction industry professionals which include Architects, Engineers, Builders, Quantity Surveyors and Estate Surveyors for the purpose of data collection. Four hundred and thirty-five (435) were sent to the professionals, but two hundred and forty-three (243) responses were returned and useful for analysis. This represents a response rate of 56% of the number of distributed questionnaires. The data collected were analysed using frequency distribution and percentage, factor analysis and Mean Item Score. The results revealed that biomimicry principles are in four (4) groups namely, organization principles, energy principles, composition principles and material principles, Findings of this study revealed that awareness level of the principles of biomimicry is very low among construction professionals. The study also revealed that biomimicry principles are applicable in the early construction stage, finishing and services, foundation and frame, and project planning stage of building projects. The study revealed that level of competence exhibited by construction professionals, sufficient information about the project during the construction process, favourable weather condition, selection of important activity for which biomimicry is to be adopted and economic situation of clients are top driver for the adoption of biomimicry in the construction industry. While the study revealed that among other challenges lack of conservation of natural habitats is a major challenge besetting the adoption of biomimicry, it further revealed the benefits of biomimicry including its solution to shortage of water, waste management and being a source of inspiration for designers. The study recommended that biomimicry should be taught in tertiary institutions as part of undergraduate and postgraduate curriculum in order to expand its level of awareness, the study further recommended that governments should enact laws that would allow animals and their natural habitats to be preserved. 2022-01-01T00:00:00Z