Citizen Lead, DIY Pothole Repair
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Transcript of Citizen Lead, DIY Pothole Repair
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Community Based Road Management
March 2016
HIPA
A Workshop and Demonstration
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Topics
• Building durable bitumen roads.
• Effective pothole repair throughout the year.
• Why should the Community be involved ?
• Pothole-Free India.
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Session design
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•Group-work
•Presentation
•Readings
•Practical
•Creative
•Ongoing
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Prof. Prithvi Singh Kandhalhttp://asphaltinindia.blogspot.in/
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Associate Director Emeritus of the National Center for Asphalt Technology (NCAT) at Auburn University, Alabama, USA. Chief Asphalt Engineer of the Pennsylvania Department of Transportation for 17 years. Chairman of the US Transportation Research Board Committee on Bituminous Mixtures. Chairman of ASTM Committee D04 on Road and Paving Materials, responsible for over 200 standards used worldwide. President of the Association of Asphalt Paving Technologists, which has members in all continents of the world. Published over 120 papers in the area of asphalt paving technology. He also co-authored the first-ever textbook on hot mix asphalt technology, which is being used in over 25 universities in the US. In 2012, he received the honorary membership (considered as “Lifetime Achievement Award in Asphalt Road Technology”) from the Association of Asphalt Paving Technologists.
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GROUPWORK
Roads: Their role in Human Society?
When Roads are damaged, what are its effects?
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Role in Human Society
• Connects people and goods • Creates employment • Supports other economic activities• Poverty alleviation • Enhances social cohesion and
integration by giving citizens access to the same opportunities
“American roads are good not because America is rich, but America is rich because American roads are good.”
• - John F. Kennedy
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Damaged !
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Damaged !
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1:17:70Damaged !
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Building durable bitumen roads.
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Monsoon and roads ?
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Bitumen Mixes in India
KANDHAL 1+1=11 http://irc.org.in/
Bituminous Macadam (BM) Grading 1
Bituminous Macadam (BM) Grading 2
Dense Bituminous Macadam (DBM) Grading 1
Dense Bituminous Macadam (DBM) Grading 2
Semi-Dense Bituminous Concrete (SDBC) Grading 1
Semi-Dense Bituminous Concrete (SDBC) Grading 2
Bituminous Concrete (BC) Grading 1
Bituminous Concrete (BC) Grading 2
Open-Graded Premix Carpet (PMC)
Mixed Seal Surfacing (MSS)
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How much air ?KANDHAL 1+1=11 18
Dense Bituminous Concrete Bituminous Macadam (BM) 1
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Premix Carpet (PMC)
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8%
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Bitumen Mixes in India
KANDHAL 1+1=11 http://irc.org.in/
Bituminous Macadam (BM) Grading 1
Bituminous Macadam (BM) Grading 2
Dense Bituminous Macadam (DBM) Grading 1
Dense Bituminous Macadam (DBM) Grading 2
Semi-Dense Bituminous Concrete (SDBC) Grading 1
Semi-Dense Bituminous Concrete (SDBC) Grading 2
Bituminous Concrete (BC) Grading 1
Bituminous Concrete (BC) Grading 2
Open-Graded Premix Carpet (PMC)
Mixed Seal Surfacing (MSS)
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BC grading 2
• At least 24% Cheaper than PMC over 6 year period.
• Higher Structural Strength.
• Lower maintenance.
• Smoother ride.
• Recyclable.
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Why Indian engineers use water-trapping asphalt mixes?
Technical ignorance ?
Design roads to fail early – will get “fat” budget for renewal year after year ?
Lack of will power to do something for country ?
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Petitioning Municipal Commissioner, Bruhat Bangalore Mahanagara Palike Mr G Kumar Naik and 1 otherHonour your commitment to fix potholes by 15 Dec 2015
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Effective Pothole repair throughout the year.
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Repair of potholes
• Repair must be immediate
• Hot mix not the solution
• Use readymade, open-source “KandhalMix”
• Developed by Prof. Khandal in 1980
• Shelf Life of 6 months
• “Idiot Proof” in application
• Economical
• IRC:116-2014 –“Specifications for Readymade Bituminous Pothole Patching Mix using Cut-Back Bitumen”
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Preparing
Properties of the aggregate (Bajri)
• 9.5 mm and below
• Clean and dry
• Angular
• Bitumen 5%
• Anti Stripping 1.5% of Bitumen
• Bitumen Heated to 70 degrees C
Cleaning the Aggregate
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Combining
Heating the Bitumen
Mixing with Aggregate
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Storage
Plastic lined bags
Tools
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Practical
Dr. Baldev Singh Negi
Faculty IIHS The Institute of Integrated Himalayan Studies (UGC Centre of Excellence) HP University.
www.negiiihs.blogspot.com
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The Players !
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Where are we headed ?
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VULNARABILTY
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“Pothole Free Shimla”
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Road Milling
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Community Audit
CENTRIFUGE EXTRACTOR NCAT IGNITION OVEN
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Pothole Free India
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