Impact of Procurement Methods on Material Waste in Low-Rise Building Projects in Nigeria

Adewuyi, Timothy; Ujene, A.O.

doi:10.7492/ijaec.2019.010

Cited by 2 publications

(2 citation statements)

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“…By improving the quality of supervision on site with capable supervisors, the rate of material waste on site can be reduced [16]. Apart from that, the consultant's perception seems to indicate that their absence and roles on site are more significant in minimising material waste [1]. Poor management indicates in the prospect of upper-level management of the company's carelessness, especially by managers and site supervisors [3].…”

Section: Lack Of Supervisionmentioning

confidence: 99%

Preliminary survey on the root causes of mishandling materials occurrence at construction sites in central region Malaysia

Nadarason,

Nagapan,

Arumugam

2023

IOP Conf. Ser.: Earth Environ. Sci.

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A crucial issue has been perceived as construction waste generation, which negatively affects the effectiveness of construction project and its environmental impact. The key objective of the current research is to identify the root causes of mishandling materials at construction sites. A well-structured questionnaire was designed based on the 33 root causes of mishandling materials identified. The developed questionnaire was distributed to 28 highly experienced in Malaysian construction industry experts. The collected data was analysed by using mean score analysis. There are nine crucial root causes with a mean value greater than 3.70. The top identified root causes are lack of management commitments towards educating workers about safety, wrong handling of materials, lack of supervision, poor management, inappropriate storage leading to damage and mismanagement of materials. These initial findings will assist construction practitioners in addressing these root causes to reduce the material construction waste generated on construction sites.

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Section: Lack Of Supervisionmentioning

confidence: 99%

Preliminary survey on the root causes of mishandling materials occurrence at construction sites in central region Malaysia

Nadarason,

Nagapan,

Arumugam

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The construction industry is a major source of building infrastructure to support city growth and contributes to environmental degradation. Adewuyi and Odesola (2015) defined construction waste as 'construction materials that are lost in transit on or off site, discarded without adding value to the project for which it was procured including overproduction or left over from newly constructed facility'. According to Ikau et al (2016), inexperience in construction waste, nonconformance of materials with requirements, poor storage, and rework are the primary sources of material waste in construction projects.…”

Section: Introductionmentioning

confidence: 99%

Construction Material Waste Causes and their Contribution Levels: A Case Study of Construction Projects in Abuja, Nigeria

Ibe

2023

Proceedings of the International Conference on Industrial Engineering and Operations Management

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With a population of 211 million, Nigeria's construction industry generates about 3 million tons of C&D waste per year. Recovering, recycling, or reusing over 75% of C&D waste is possible. It's widely accepted that waste management methods, technologies, rating systems, and policies must be comprehensive and integrated. Prevention, minimization, reuse, recycling, energy recovery, and disposal are waste management steps. Recycling is unplanned in Nigeria. This study analyses construction project MWG and predetermined materials waste causes. Abuja construction professionals comprise the study. The targeted population was surveyed using convenience sampling and analyzed using frequency, mean score, and Mann-Whitney U test. The study confirms Nigeria's construction waste causes. "Adjustments done without following the agreed-upon blueprints," "Revisions and alterations to the design," and "Spent resources on inefficient forms" are the main causes of construction material waste on Abuja building sites. It also shows that these factors affect MWG at different levels on Nigerian construction projects. Poor supervision is the most responsible for material waste generation, while inappropriate tools are the least responsible. To optimize building projects in Abuja, Nigeria, construction industry players should consider all investigated variables at each stage of their construction processes and waste management strategies.

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Impact of Procurement Methods on Material Waste in Low-Rise Building Projects in Nigeria

Cited by 2 publications

References 0 publications

Preliminary survey on the root causes of mishandling materials occurrence at construction sites in central region Malaysia

Preliminary survey on the root causes of mishandling materials occurrence at construction sites in central region Malaysia

Construction Material Waste Causes and their Contribution Levels: A Case Study of Construction Projects in Abuja, Nigeria

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