A Seminar on Green Roads

8/13/2019 A Seminar on Green Roads

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Use of used tiresIssue: California generates

more than 40 million scraptires every year. While nearly75 percent of used tires arerecycled

Solution: 1. RubberizedAsphalt Concrete

2. Tire Derived

Aggregates

A Few Construction Related Examples


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The Province of British Columbia Hot In Place recycling of asphalt pavements

Over 10 million square meters recycled to date. Maximizes the use of non renewable resources Reduces green house gas emissions as much as 7000

tonnes per production day over conventional mill and fill.



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The Province of Nova Scotia Cold In Place Recycled Asphalt Program

Over 30 projects completed to date Recycling of valuable asphalt cement and aggregates. Reduction in use of None Renewable Resources



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Japan's Mitsubishi Materials Corporationhas developed a paving stone called"Noxer" that uses the catalytic properties

of TiO2 to remove nitrogen oxide (NOx)from the air, breaking it down intoenvironmentally benign substances thatare washed away by rainwater. ( NOx isproduced in abundance through vehicleemissions .)



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The Greenroads Rating System

A sustainability performance metric for roadway design andconstruction

Third party certification process

Applies to new and reconstructed road projects Recognizes and quantifies roadway sustainability Awards points for sustainable practices Began in 2007 at University of Washington


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Rating Systems

Voluntary Credits:-

Environment &Water (21) 19%

Access & Equity (30) 28%

Construction Activities (14) 13%

Materials & Resources(23) 21%

Pavement Technology(20) 19%

Source: www.greenroads.com


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Define what roadway project features contribute tosustainability.

Provide an accounting tool for sustainability benchmarking. Communicate sustainability efforts to key stakeholders. Help manage and improve roadway sustainability. Stimulate the market for sustainable practices and products

Overall goal: improve roadway sustainabili ty

Why Rating Systems?


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Benefits of Green Technologies

Reduce Demand on Quarries andAggregates

Reduce Demand on Hydrocarbon

Fuel Oil/Gas Reduces Greenhouse Gas

Emissions Reduce Cost & Save our Economy Reduce environmental impacts Healthier communities and people


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Conclusion

We can use warm mix asphalt in place of HMAwithout compromising in life span andperformance of pavement.

Recycled material can be used in constructionwith equal strength. We can improve our environment by using new

strategies for sustainable construction

By managing natural resources we can reducedepletion of resource and can presereve these fornew generation.

And we can also reduce the cost of constructionand achieve economy


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Recommendations We have to be aware about our environment in

no time. We have to preserve our non renewable

resources for next generation. We should to invent some new technology for low

energy consumption in road construction. We should design planning and costruct more and

more sustainable roads.


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References

1. Muench,S.T. and Anderson,J.L. Greenroads:A sustainability performancemetric for sign and construction. U.S. Department of TransportationWashington, December 2009.

2. Gupta, A.K., Goyal, R., Singh,A., and Ogra, A. Greenroads: A Portrait ofSustainable Design and Construction for Indian Roads. IACSIT Press,Singapore, 2011.

3. Basic Road Statistics (BRS) of India , Ministry of Road Transport &Highways, Transport Research Wing, New Delhi, 2010.

4. Greenroads Manual v1.5 published at www.greenroads.us, 20115. Hamlyn, D., Goode, J., Passfield. G. and Firth, K. Case Study: Recycling

Resources for Environmental Sustainability Port River Expressway Stage1

6. Thompson, J. D., Bashford, H.H., and Larson, G. E. Sustainability Strategies for Highway Construction: A Case Study of ADOTs PiestewaSR51 HOV Widening Project Omaha, Nebraska, April, 2011.

Documents

A Seminar on Green Roads