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Radiological considerations in using uranium mine waste rock for road construction materials
Gopal P Verma1, Pallavi Singhal1, Sanjay Kumar Jha1
1Health Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
Journal of Environmental Radioactivity
|January 10, 2025
Summary
Uranium mine waste rock can be safely used in Indian road construction, with radiation doses below regulatory limits. This sustainable approach conserves natural resources and aids industrial waste management.
Area of Science:
- Environmental Science
- Civil Engineering
- Radiological Science
Background:
- India faces aggregate scarcity for road construction, impacting infrastructure growth and increasing costs.
- Industrial waste management is a significant challenge for India's economy.
- Previous research on industrial waste in road construction overlooked radiological safety.
Purpose of the Study:
- To assess the radiological safety of using uranium mine waste rock in road construction materials in India.
- To evaluate external radiation doses associated with this application.
- To determine compliance with national radiation safety standards.
Main Methods:
- Utilized a typical layered road design prevalent in India.
- Performed dose rate evaluations using the QAD-CGGP code.
- Conducted real-world radiation measurements.
Main Results:
- External radiation doses from using waste rock in road construction were found to be below 1 mSv/year for the public.
- The observed dose rates meet the Atomic Energy Regulatory Board's criteria for unrestricted use of bulk materials.
- The study confirms the feasibility of using lean uranium ore waste rock.
Conclusions:
- Utilizing uranium mine waste rock in road construction is radiologically safe and complies with Indian regulations.
- This practice offers a sustainable solution to aggregate scarcity and industrial waste management.
- The approach promotes resource conservation, reduces ecological impact, and supports a circular economy.
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