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Management of waste from stone processing industry.
1Centre for Environmental Studies, Anna University, Chennai.
Journal of Environmental Science & Engineering
|May 15, 2008
Summary
Stone processing waste shows potential for recycling. This waste can replace significant portions of sand and cement in concrete and clay in bricks without compromising strength.
Area of Science:
- Materials Science
- Environmental Engineering
- Waste Management
Background:
- Stone processing generates substantial waste.
- Current disposal methods pose environmental risks, impacting air quality.
- The physical and chemical properties of this waste resemble conventional construction materials.
Purpose of the Study:
- To assess the characteristics of stone processing waste.
- To evaluate the environmental impact of current waste disposal practices.
- To determine the potential for recycling stone waste in construction applications.
Main Methods:
- Field studies were conducted to analyze waste characteristics.
- Environmental impact assessments were performed at disposal sites.
- Recycling potential was evaluated through material replacement tests.
Main Results:
- Stone waste is physically and chemically comparable to sand and cement.
- The waste can substitute up to 60% of sand and 10% of cement in concrete.
- Up to 40% of clay in bricks can be replaced by stone waste without affecting compressive strength.
Conclusions:
- Stone processing waste is a viable secondary raw material for construction.
- Recycling this waste can mitigate environmental issues associated with disposal.
- Utilizing stone waste promotes a circular economy in the construction industry.
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