Evaluating the Economic and Environmental Aspects of Glass Recycling in Concrete Products in Tehran

The increasing production of waste, including glass and its unhealthy disposal into the environment, in addition to the loss of national capital, causes the loss of natural resources. Considering the importance of recycling in this research, the economic and environmental aspects of recycling of glass were evaluated from Tehran municipal waste. The total amount of dry wastes in Tehran in 2011 is 416,324,412 and the average daily amount is 1,140,615. Of the total solid waste in Tehran, 4.6% of these wastes are glass waste, with only 2% recycled glass waste. In the past, a major research effort was made at Hong Kong University Polytechnic University to find practical ways to recycle glass waste to produce various concrete products such as concrete blocks, self-compacting concrete. Some of these concrete concrete products have successfully entered the market and attracted much attention. This paper will provide a general overview of the current state of waste management and recycling and the experience of recycling recycled waste in concrete cement products in Tehran.