THE USAGE AND CONTRIBUTIONS OF CONSTRUCTION WASTE MINIMIZATION STRATEGIES.
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Date
2010
Authors
Oladiran O.J.
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Publisher
AEC
Abstract
Nigeria and USA differ in many ways; for instance, USA is a developed country and Nigeria is under developed. It has also been observed that Nigeria is one of the producers of best electrical cables for construction works in the world. A comparison of the two scenarios in both countries was done on the usage of waste minimization strategies (WMS), aimed at revealing areas of adjustments in both countries to enhance construction waste minimization. The study also investigates the use of 21 predetermined WMS and their contributions in Nigeria alone. The research areas are Lagos State in Nigeria; Texas and Ohio States in USA. The population of the study is construction professionals within the research areas. A well-structured questionnaire administered via convenience sampling technique, which resulted to 40-sample size, was used to gather data for the study. Descriptive and inferential statistics tools were used to analyze the data. The study reveals that WMS exist and are ‘always’ used in all the construction organizations investigated in USA; while they exist in 72% of the organizations investigated in Nigeria and are ‘always’ used in just 26% of them. Also, 93% and 32% of the organizations consider the usage of WMS at the pretender stage in USA and Nigeria respectively. Similarly, WMS have ‘very high’ and ‘high’ impacts in 43% and 57% respectively in USA’s organizations; while it is 10% and 50% respectively in the Nigerian organizations. Site supervision and control is the most used strategy while designing-out waste is the least used in Nigerian construction projects. Also, site supervision and control; and effective communications make equal and highest contributions to waste minimization among all the 21 strategies. The study recommends that practitioners in the Nigerian construction industry should increase the usage of WMS and considers them at the pretender stage to effectively minimize waste on their construction projects. In addition, site supervision and control; and effective communications should also be employed.
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Citation
1. Oladiran, O.J. (2010). The Usage and contributions of construction waste minimization Strategies. Proceedings: International conference on innovation in Architecture, Engineering and construction, June 9-11, Pennsylvania, USA.