الفهرس 
LITERATURE REVIEWOnly 14 pages are availabe for public view
 |  | from | 192 |  |  |
| | | from | 192 | | |
Abstract
While the industrial ceramic waste accumulates every day, the problem of its disposal has become a very big concern. By reusing or recycling these ceramics, less amounts of waste are disposed in landfill as well as reducing the demand for natural resources. The ceramic waste is characterized hard, durable and has high resistance to physical, biological and chemical degradation forces.
In this study, the potential of using recycled ceramic tile waste as partial replacement for fine and coarse aggregates in concrete was investigated. The experimental program consists of two phases: Phase one was designed to study the physical and mechanical characteristics of the recycled coarse and fine ceramic aggregates compared to the conventional aggregates. Phase two was designed to investigate the effect of using recycled ceramic tile waste as partial substitution of fine and coarse aggregates, on the properties of fresh and hardened concrete.
Thirteen concrete mixes with constant w/c ratio were prepared and tested. The reference concrete mix was made with natural fine and coarse aggregates (crushed stone and natural sand). Three groups of concrete mixtures were used in the study. The first group incorporated coarse ceramic aggregate as a partial substitute of crushed stone with replacement levels of 10%, 20%, 30%, 40%, and 50%. The second group incorporated fine ceramic aggregate as a partial substitute of natural sand with replacement levels of 20%, 40%, 60%, 80%, and 100%. The third group incorporated coarse and fine ceramic aggregates with replacement levels of 50% for coarse aggregate, and 20% and 40% for fine aggregates.
Slump test of the different concrete mixes was conducted to explore the effect of incorporating ceramic aggregates on the properties of fresh concrete. Compression test, splitting tension test, flexure test, density, percentage of voids, water absorption and sorptivity tests were accomplished to explore the properties of hardened concrete.
The experimental results revealed that the use of recycled ceramic tile aggregates showed to be promising in concrete manufacture. It was obvious that the use of fine ceramic aggregate as partial substitution of sand enhances the mechanical properties of concrete compared to concrete incorporating coarse ceramic aggregate.