{"title":"Biochemical and Antimicrobial Activity of Prosopisafricana","authors":"","doi":"10.13187/ijep.2018.1.19","DOIUrl":"https://doi.org/10.13187/ijep.2018.1.19","url":null,"abstract":"","PeriodicalId":233626,"journal":{"name":"International Journal of Environmental Problems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129799232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this research work is to assess to the challenges affecting contractors in public sector the execution of public sector building projects in Bauchi Local Government of Bauchi State. To identify the challenges facing the execution of projects in Bauchi Local Government through literature review and personal experiences of contractors. To evaluate the extent to which these challenges affect the execution of public building projects in Bauchi. Structured questionnaires were distributed to specialist practitioners and companies. It was discovered that due to the nature of public sector building projects, contractors have a remote relationship with the client. Hence, delay in payments was found to substantially pose a challenge to the contractor when executing public sector building projects. It was also found corruption of government officials to be a great challenge during execution as discovered here. Theft of materials, fluctuation of prices, and poor workmanship were also discovered to generally pose a challenge to the process of executing works.
{"title":"Identifying the Challenges Affecting Contractors Performance in the Execution of Building Projects","authors":"M. Mukaddas, A. Mohammad, F. A. Mohammad","doi":"10.13187/ijep.2018.1.76","DOIUrl":"https://doi.org/10.13187/ijep.2018.1.76","url":null,"abstract":"The aim of this research work is to assess to the challenges affecting contractors in public sector the execution of public sector building projects in Bauchi Local Government of Bauchi State. To identify the challenges facing the execution of projects in Bauchi Local Government through literature review and personal experiences of contractors. To evaluate the extent to which these challenges affect the execution of public building projects in Bauchi. Structured questionnaires were distributed to specialist practitioners and companies. It was discovered that due to the nature of public sector building projects, contractors have a remote relationship with the client. Hence, delay in payments was found to substantially pose a challenge to the contractor when executing public sector building projects. It was also found corruption of government officials to be a great challenge during execution as discovered here. Theft of materials, fluctuation of prices, and poor workmanship were also discovered to generally pose a challenge to the process of executing works.","PeriodicalId":233626,"journal":{"name":"International Journal of Environmental Problems","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115211145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Material waste has been a great nuisance in the construction industry. It is the major cause of the high cost, low value and poor service delivery in the construction industry. The purpose of this study is to provide data that will increase knowledge on waste minimization in construction sites by identifying sources and causes of avoidable waste on construction sites and valuation of level of knowledge of the lean concepts among construction specialists and recognizing obstacles to effective application of the lean concept in construction. Data for the study were obtained through site visitations, interviews and the administration of 1000 questionnaires. Respondents included all the major professionals in the construction industry. Ratios and Simple percentages were used to analyze the data. Data from the analyses indicated about 10 % to 33 % of total construction materials are wasted on site. Results also revealed that method of operation, storage and handling of construction materials, procurement methods, record keeping and design were the major sources of waste on construction sites. It also revealed the presence of some degree in knowledge of lean construction among the construction experts.
{"title":"Assessment on the Barriers to Application of Lean Principles at the Construction Stage in Bauchi Metropolis","authors":"M. Mukaddas, A. Mohammad, F. A. Mohammad","doi":"10.13187/ijep.2018.1.56","DOIUrl":"https://doi.org/10.13187/ijep.2018.1.56","url":null,"abstract":"Material waste has been a great nuisance in the construction industry. It is the major cause of the high cost, low value and poor service delivery in the construction industry. The purpose of this study is to provide data that will increase knowledge on waste minimization in construction sites by identifying sources and causes of avoidable waste on construction sites and valuation of level of knowledge of the lean concepts among construction specialists and recognizing obstacles to effective application of the lean concept in construction. Data for the study were obtained through site visitations, interviews and the administration of 1000 questionnaires. Respondents included all the major professionals in the construction industry. Ratios and Simple percentages were used to analyze the data. Data from the analyses indicated about 10 % to 33 % of total construction materials are wasted on site. Results also revealed that method of operation, storage and handling of construction materials, procurement methods, record keeping and design were the major sources of waste on construction sites. It also revealed the presence of some degree in knowledge of lean construction among the construction experts.","PeriodicalId":233626,"journal":{"name":"International Journal of Environmental Problems","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127784653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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