|
Abstract:
The problems of construction and demolition waste causes an environmental pollution, this waste comes from the development in Oman and rise in urbanization. Therefore, to solve these problems, construction and demolition waste can be reuse as raw material in concrete mix. The main purpose of this project is to study the possible use of crushed Concrete Hollow Blocks as coarse aggregate to produce a new concrete. Using construction and demolition waste as raw material will have a positive effect on the economy. The compressive strength of concrete at 7 & 28 days of age of concrete mix have been determined using natural coarse aggregate. The replacement of the coarse aggregate by crushed Concrete Hollow Blocks was at three different percentages (0 %, 50 %, and 100 %). The mechanical and physical properties of aggregate were investigated such as specific gravity, water absorption, water content, sieve analysis and clay percent.
|
