ASSESSMENT OF MATERIAL WASTAGE ON BUILDING CONSTRUCTION SITE IN IDAH LGA AND IGALAMELA/ODOLU LGA OF KOGI STATE
Abstract
This study aimed to assess material wastage on building construction sites in Idah and Igalamela/Odolu LGAs of Kogi State, Nigeria, and to propose strategies for minimizing such wastage. The research adopted a mixed-methods design, combining both qualitative and quantitative approaches. The target population included construction workers, project managers, contractors, and suppliers, with a sample size of 86 respondents selected through stratified random sampling. Data were collected using structured questionnaires, interviews, and field observations, and analyzed using descriptive statistics, including percentages and frequencies, as well as thematic analysis for qualitative responses. The findings revealed that poor planning (91%), inadequate storage (82%), and lack of skilled labor (76%) were the primary factors contributing to material wastage. Additionally, logistical issues such as delays in material delivery and poor coordination between contractors and suppliers exacerbated waste, with 85% of respondents agreeing that delays significantly increased wastage. The study also found that implementing better planning, worker training, and technologies such as Building Information Modeling (BIM) and Just-in-Time (JIT) delivery systems could reduce wastage. Respondents also supported recycling and reusing materials on-site, with 91% indicating its effectiveness. In conclusion, material wastage is a significant challenge in the construction industry of Idah and Igalamela/Odolu LGAs, impacting project cost, quality, and timelines. The study recommends better project planning, adoption of modern technologies, and enhanced worker training as effective strategies for reducing material waste. Policy recommendations include incentivizing the adoption of sustainable construction practices and improving logistical coordination between stakeholders.
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