Utilization of Waste Low Density Polyethylene in High Strengths Concrete Pavement Blocks Production
Utilization of Waste Low Density Polyethylene in High Strengths Concrete Pavement Blocks Production
No Thumbnail Available
Date
2014
Authors
Yalley, Paa Kofi Peter
Ababio Ohemeng, Eric
Dadzie, John
Dzifa Djokoto, Susan
Journal Title
Journal ISSN
Volume Title
Publisher
Civil and Environmental Researc
Abstract
The disposal of waste plastics is causing a great challenge in Ghana and the world as a whole as the usage of
plastics is growing day by day and it takes centuries for waste plastics to decompose. Hence, there is the need to
adopt effective methods to utilize these plastics. The main objective of this research was to investigate the
feasibility of using waste low density polyethylene as partial replacement for sand in the production of concrete
pavement blocks. In this study cement, sand, coarse aggregate, and ground plastic were used. The mix proportion
was 1: 1.5: 3 (cement: sand: coarse aggregate). The plastic was used to replace the sand by volume at 0%, 10%,
20%, 30%, 40%, 50%, and 60%. It was observed that density, compressive strength, flexural strength, and
splitting tensile strength decreased as the plastic content increased. However, the water absorption increased as
the plastic content increased. Compressive strengths level ranging from 14.70N/mm2
– 47.29N/mm2
were
achieved when water cement ratios of 0.30 – 0.45 were used. Although, the strengths of the pavement blocks
decreased as the plastic content increased, compressive strengths of 20N/mm2
, 30N/mm2
, and 40N/mm2
which
are satisfactory for pedestrians walk ways, light traffic and heavy traffic situations respectively could be
achieved if 10% - 50% plastic contents are used. It is concluded that the modified pavement blocks would
contribute to the disposal of plastics in the world.
Description
Keywords
Citation
Ohemeng, E. A., Yalley, P. P., Dadzie, J., & Djokoto, S. D. (2014). Utilization of waste low density polyethylene in high strengths concrete pavement blocks production. Civil Environ. Res, 6(5), 126-135.