Building Professionals’ Perspectives on the Implementation of Green Building for Climate Change Mitigation in Nigeria (Published)

The building and construction sector is responsible for as much as one third of total global green house gas (GHG) emissions and about 80 percent of these emissions take place during the operational phase of buildings. This results in damage and destruction of buildings and infrastructure, delayed construction and increased costs. Through the practice of green building, these emissions especially CO2 can be significantly reduced in both developed and developing countries. The green building concept considers many ways that building services ner aq as well as other GHG impacts associated with the built environment, including the effects of alternative urban designs, the use of on-site power generation and life-cycle GHG emissions from building construction, materials, and equipment. This study reviewed green building practice in developed countries considering building professional’s perspectives of climate change mitigation in Nigeria through green building and found that despite the many benefits of green building such as enhancement of the comfort and health of occupants, improvement in air quality, occupants‟ satisfaction, reduction of aggregate future capital and maintenance costs, creation of job opportunities in the construction industry and protection of the ecosystem among others, there are numerous obstacles that prevent these benefits from being achieved. Some of the obstacles are lack of green building awareness by developers, unavailability of green building materials locally, lack of policy or guidelines for green building, and lack of adequate knowledge and technical know-how of green building among building professionals. It recommends public enlightenment of green building by government and non-governmental organizations, request for green building guidelines, and funding for green building research, development and implementation.

 

Keywords: Building Industry, Climate Change, Construction, Green Building, Mitigation, greenhouse gas

Experimental Investigation on the Bearing Capacity of Selected Soils in Ayedaade Local Government Area, Osun State, Nigeria (Published)

As a result of the importance of foundation in engineering construction, it is important to investigate the bearing capacity of construction soils, this study therefore investigated the bearing capacity of soils in Ayedaade Local Government Area, southwest Nigeria. To achieve the aim of this study, soil samples were collected from selected 20 construction sites in the study area. Using standard procedures, preliminary and geotechnical tests such as natural moisture content, particle size analysis, specific gravity, Atterberg limits, compaction and triaxial tests were conducted on the soil samples. Subsequently, Terzaghi’s bearing capacity equations were employed, alongside already determined shear strength parameters, to estimate the bearing capacity of different footing geometry (circular, square and strip footing). Results showed that majority of the soil samples are well-graded and could also be classified as A-2-4. Results of triaxial tests also showed that the soils are all c-ϕ soils. For each of the soil samples, square footing had the highest bearing capacity while strip footing had the lowest. It was also concluded that the tested soils are all excellent to good foundation materials.

Citation: Adunoye G.O., Kareem S.P., Odetola H.M. (2023) Experimental Investigation on the Bearing Capacity of Selected Soils in Ayedaade Local Government Area, Osun State, Nigeria, International Journal of Civil Engineering, Construction and Estate Management, Vol.11, No.1, pp.45-57

Keywords: Bearing capacity, Building, Construction, Structure, foundation

Causes of Conflict in Construction Projects in Ondo State, Nigeria (Published)

Construction projects are very important to the infrastructural development of a country. The study assessed the causes of conflict in construction projects in Ondo State, with focus on Akure South Local Government. The multistage sampling procedure of data collection was used. The population of the study was 240 contractors and consultants and the sample was 150. The study used a set of structured questionnaire to obtain primary data. The collected data were statistically analysed using frequency, percentage and mean ranking. Findings from the study indicate that conflict occurs in public construction projects. It identified ten dominant causes of conflict in construction projects in study area. Also, the study revealed the most important cause of conflict as the tendency of contractor claiming high prices with mean value=3.468. It is recommended that conflict be addressed early to prevent its escalation which may affect construction project performance negatively. It is further recommended that construction project team conflict should be trained in conflict management.

Keywords: Causes, Conflict, Construction, Ondo State, Projects

Applied Intellectual Capital Accounting in Jordanian Construction Companies (Published)

That growing interest with the beginning of the 1970s by the employment Social Enterprise along with its economic growth has  led to attempts to develop models for the measurement and disclosure of accounting data for the social function, and thus enable the Department to identify the importance of  responsible  social  enterprise in terms of  its impact on the performance and business results and then all this reflection on the ability of the financial statements the fair expression of truth and the development and performance of enterprise.As well as the Called community enterprises to act in a more responsible, where you want all categories on understand  how these modules in environments in which they operate and thus in performance by taking decisions At present, many parties Relevant need to deal with information to identify the performance of a business and most of  the information they need can be obtained partly from financial reporting standard, but even today does not meet all the needs of these users they need other types of  information, such as social , which reflects the extent of  behavior established by a responsible environment.The construction companies of  the most important classes you need for accounting information and deals from To learn about the performance of the installations and especially nowadays where the global economy enters the third millennium, the era of globalization, which is influenced by a set of variables global economic was and still is and will remain radical and profound repercussions on the performance and business perspective that companies play a vital role in the economic development and social .Therefore the companies if  it can play an active role in this area, they have committed themselves to social responsibility of accounting disclosure, which is the focus of attention of  the accounting message recipients where these objectives vary, which is reflected in the differing quality of  information representing the accounting message content, as reflected both on the language of  the message and content of the accounting and presentation, so the information disclosure of  corporate operations will definitely positive results at the local level and international level there by maximizing social welfare.

Keywords: Accounting, Capital, Construction, Intellectual

Factors Influencing the Performance of Construction Projects in Akure, Nigeria (Published)

This study was carried out to identify the factors influencing the performance of construction projects in Akure, Nigeria. A questionnaire survey was conducted and forty six (46) factors were identified, categorized into eight (8) groups, evaluated and ranked according to participants’ perspectives. Fifty (50) questionnaires were distributed as follows: 12 to clients, 18 to consultants and 20 to contractors. The outcome of these analyses showed that all the respondents agreed that construction projects were influenced by all the forty six factors indicated by the questionnaire. However, the analysis indicated that the top ten (10) factors that have the highest average index showed how these factors are affecting construction projects. Based on these findings, this study recommended that contractors’ progress payment should be made on time as well as minimizing change orders during construction to avoid delays. Also, consultants should give full commitment to monitor the project progress and ensure the work was according to specifications and satisfactory quality; meeting owner needs and expectation within the project budget and stipulated time. Finally, continuous coordination and relationship between project participants were required through the project life cycle in order to ensure project performance.

Keywords: Average Index, Construction, Multiple Regression Analysis, Project Performance, Questionnaire Survey

Impact of Illiterate Rural Migrant Workers on the Effectiveness of Construction Safety Induction in Lagos State Nigeria (Published)

Demand for housing, factory buildings and other social infrastructural development in the major urban cites around the world are ever on the increase. To meet the high demand of labour force required, contractors often employ illiterate rural migrant workers that drift from rural areas to cities for greener pasture. These categories of construction site workers have poor understanding of English and therefore contribute to a disproportionate number of site fatalities and injuries on sites. This study aimed at investigating the extent to which these illiterate rural migrant construction site workers impact on the effectiveness of construction safety induction training on sites. The study examines the demographic data of the illiterate rural migrant construction site workers, construction H&S legislation and language used in conducting site safety induction training to the workers. Questionnaire survey was then structured from literature and administered to workers with the aid of interpreters. This was followed by interviews conducted with site supervisors. Data was electronically manipulated using MS Excel. From the analysis, the study revealed that about 64.5% of the general workers are rural migrant workers with no basic education and trade qualifications. The study further revealed that poor understanding of spoken English among the rural migrant workers contribute to site injuries and fatalities. Nevertheless, there is lack of commitment on the part of contracting organizations, particularly among the medium and small sized companies in conducting safety induction training to workers. The study concludes that H&S is an important issue in the Occupational Safety and Health Act (OSHA) all over the World. The Act emphasizes the importance of employee education pertaining to H&S of the work environment regardless of whether the employee is educated or illiterate. The study therefore recommends that contractors conduct site H&S induction training to workers whether they are temporary or permanent; and that safety induction training should be conducted in local language of the rural migrant workers.

Keywords: Construction, Health and Safety Induction, Illiterate, Lagos, Migrant Workers, Rural

CONFLICT OF INTEREST AND RELATED CORRUPT PRACTICES IN PUBLIC PROCUREMENT IN GHANA (Published)

Purpose: The objective of this study was to assess the perceptions of the players in Ghana‟s Construction industry (GCI) on the pervasiveness of conflict of interest and corruption in the industry.
Research Design: The study involved the undertaking of an extensive literature review on the subject matter. Additionally, employing the principles of a “survey approach to research”, a questionnaire was developed, which sought to primarily establish, which of the stages of the procurement process was most susceptible to corruption and acts of conflict of interest Purposive sampling was utilized and descriptive statistics and relative importance index were used to analyze the data.
Research Limitations: The use of purposive sampling limited the survey to the participants of the procurement forum.
Findings: From the study, acts of conflict of interest and corrupt practices are still pervasive in the construction industry and the tender stage, contract execution stage and final accounting and auditing stage were found to be the stages of the public procurement process that are most susceptible to the perpetuation of acts of conflict of interest and corrupt practices in Ghana.
Response to the conference theme and outcome: This study unearths the level of corrupt practices and conflicts of interest in the construction industry in Ghana.
Practical Implications: The study increases the awareness of the prevalence of conflict of interest and corrupt practices in the construction industry despite the interventions made by successive Governments to curb same.
Originality: The study explores issues of conflict of interest and corrupt practices in the Ghanaian construction procurement landscape and identified some stages in the procurement process prone to conflict of interest and corrupt practices which if given attention safeguard the already stretched public purse.

Keywords: Construction, Corruption, Public Procurement, conflict of interest, public official