A STUDY OF RECYCLING CONSTRUCTION AND DEMOLITION WASTE AS AN INTEGRATED SOLID WASTE MANAGEMENT TECHNIQUE IN THE KENYAN CONSTRUCTION INDUSTRY

ABSTRACT
This study focused on recycling of concrete waste in construction and demolition activities as an integrated solid waste management technique. A contribution by construction industry to achieving Social Pillar in Kenya’s Vision 2030 and social responsibility to the community as an environmental protection initiative and a vehicle for job creation. Concrete, the most used construction material greatly contributes to environmental degradation especially at the production stage of its constituents while it makes up to 40% of solid waste disposed in the garbage sites yet it is recyclable. This research project therefore, explores ways in which concrete has been recycled in other countries as a solid waste management technique and as to how it can be implemented in Kenya. The objectives include finding out how contractors recycle concrete from construction and demolition in the construction sites, establishing factors that affect recycling of concrete as a construction and demolition waste (CDW) and exploring ways in which recycling of CDW can be improved as an integrated solid waste management technique.
Literature review focused on the technique used in recycling concrete from construction and demolition activities. This is from available resources on how it has been done elsewhere in other countries. A survey was conducted through interviews and questionnaires distributed to National Construction Authority, NCA contractors class 1.
The study found out that most contractors were not receptive of the concept of recycling concrete in the construction projects. The government also had not initiated strategies to ensure recycling of concrete as in other countries. Most contractors claimed it was expensive to recycle concrete and the lack of recycling factories made it difficult for them to recycle and preferred to dispose it.
Contractors felt that by creating awareness, construction of recycling factories and through government incentives recycling of CDW could be achieved and implemented as an integrated solid waste management technique. It would also make it attractive to the contractors.

Documentation :