Evaluation of Construction and Demolition Waste Management in Kuwait

This research aimed to evaluate Kuwait’s current construction and demolition waste (C&D waste) situation by focusing on C&D waste generation and management issues. This work also investigated the causes and factors affecting C&D waste to understand the actual waste management activities...

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Bibliographic Details
Main Authors: Mohammed Baqer Hasan Almusawi, Ahmad Tarmizi Bin Abd Karim, Saleem Ethaib
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Recycling
Subjects:
Online Access:https://www.mdpi.com/2313-4321/7/6/88
Description
Summary:This research aimed to evaluate Kuwait’s current construction and demolition waste (C&D waste) situation by focusing on C&D waste generation and management issues. This work also investigated the causes and factors affecting C&D waste to understand the actual waste management activities and proposed strategies to minimize the waste generated at the local level. This study estimated C&D waste generation rates based on data collected from five construction projects and two demolition projects in Kuwait. In addition, a questionnaire survey was conducted to evaluate the causes of C&D waste generation. The results showed that the average C&D waste quantities generated by construction activities were 49.5 kg/m<sup>2</sup> for public/commercial building projects and 35 kg/m<sup>2</sup> for residential projects. At the same time, public/commercial construction, residential construction, and demolition works generated 1.480 ton/m<sup>2</sup>, 0.0495 ton/m<sup>2</sup>, and 0.035 ton/m<sup>2</sup>, respectively. The average composition of C&D waste from the construction sector was 35.4% concrete waste, followed by 19.2% tiles/blocks, and 14.2% metals, with the remainder being other materials. Meanwhile, the demolition waste was composed of 70% concrete and cement waste and 20% metals. The results showed that 54% of the projects disposed of their C&D waste directly in the landfills. The leading causes of C&D waste generation were reworks due to changes in specifications, poor material quality, improper material handling, and improper site management. Strategic C&D waste management practices are necessary for sustainable natural resource management and conservation of the environment.
ISSN:2313-4321