Use of plastic waste in construction of Flexible Pavement Dr. R. Vasudevan , Dean & Prof. Department of Chemistry Thiagarajar College of Engineering Madurai-15 Dr. R. Vasudevan 26 -11 -14
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Dr. R. Vasudevan 18 -02 -15
Dr. R. Vasudevan 18 -02 -15
Available Plastics materials in the Market and their chemical nature Plastic material Hotels Railway Airport Community Hall Tourist center Nature of Plastics Cup Yes No Yes Poly ethylene Carry bag Yes Yes Yes Poly ethylene Water bottle Yes Yes Yes PET Cooldrinks bottle Yes Yes Yes PET Chocolate covers Yes Yes Yes Polyester+Poly ethylene+metali sed polyester Parcel cover Yes Yes Yes Poly ethylene Supari cover Yes No Yes Polyester+Poly ethylene Milk Pouche Yes No Yes LDPE Biscuit covers Yes Yes Yes Polyester+Poly ethylene Decoration papers No No No Yes No BOPP Dr. R. Vasudevan 26 -11 -14
THERMAL BEHAVIOUR- BASED ON TGA MEASUREMENTS polymer Softening Decom Temp Products position in reported Temp Deg. C Ignition temp. Products range repor in ted Deg. C PE Film 100 120 No gas 289 335 CH 4, C 2 H 6 >700 CO, CO 2 PP 140 160 No gas 271 329 C 2 H 6 >700 CO, CO 2 PS 110 140 No gas 300 350 C 6 H 6 >700 CO, CO 2 PE Foam 120 125 No gas 309 385 CH 4 >700 CO, CO 2 Tea Cup 130 150 >700 CO, CO 2 No Gas 313 420 C 2 H 6 NO TOXIC GAS EVOLVED Dr. R. Vasudevan 26 -11 -14 PVC – not considered
Physical Properties Softening & Thickness Most of them soften below 1700 c except Poly vinyl chloride and Polyethylene terepthalate ( Table – 1) Thickness μ Softening Point Poly ethylene 70 100 -120 Carry bag Poly ethylene 10 100 -120 Parcel cover Poly ethylene 50 100 -120 Milk Pouch LDPE 60 100 -120 Film Polyethylene 50 120 -130 Foam Polyethylene NA 100 -110 Chocolate covers Polyester+Poly ethylene+metalised polyester 20 155 Supari cover Polyester+Poly ethylene 60 120 -135 Biscuit covers Polyester+Poly ethylene 40 170 Water bottle PET 210 170 -180 Cool drinks bottle PET 210 170 -180 Decoration papers BOPP 100 110 Foam Polystyrene NA 110 Commercial Plastic material Nature of Plastics Cup Dr. R. Vasudevan 26 -11 -14 Deg C
IMPROVED CHARACTERISTICS OF PLASTIC COATED AGGREGATE PLASTIC COATED AGG Dr. R. Vasudevan 26 -11 -14
Salient features of the Process Multi layer films can be used No new machinery required No Industry Involvement No granulation or Powdering of plastics- only shredding In-situ process Eco friendly process Only stone is modified and not Bitumen Scraps can be used Value addition to waste plastics No need for land filling and Incineration Carbon dioxide emission prevented Dr. R. Vasudevan 26 -11 -14
SALIENT FEATURES – WASTE PLASTICS BITUMEN ROAD STRENGTH INCREASED BY 100% NO POT HOLES, RUTTING AND RAVELLING FORMED WITHSTAND HEAVY LOAD DECREASED BITUMEN CONSUMPTION - CONSTRUCTION COST REDUCED VALUE ADDITION TO WASTE PLASTICS NIL MAINTENANCE COST FOR MORE THAN 7 YEARS NO EFFECT OF RADIATION LIKE UV LIFE OF THE ROAD -Dr. R. Vasudevan DOUBLED 26 -11 -14
Extraction of Bitumen from bitumen/PCA % of Plastics added (gm) 5 Minutes 10 Minutes 15 Minutes Bitumen Removed (%) (%) - 96. 0 98. 0 99. 0 5 63. 5 88. 7 92. 3 10 63. 2 86. 7 90. 7 15 61. 3 76. 7 83. 6 Removal of Bitumen Difficult due to Improved binding – possible using decaline solvent Dr. R. Vasudevan 26 -11 -14
25 mm SDBC- 10 M 2 COST BENEFIT ANALYSIS Material Needed Plain Bitumen Plastic-tar road Process 80/100 Bitumen 11250 Kg 10125 Kg Plastic waste ----- 1125 Kg Cost Rs. 393750 (BIT)Rs. 354375+(plastic)Rs. 13500 = Rs. 367875 Cost Reduced NIL Rs. 25875. 00 Carbon Credit NIL 3. 5 tonnes Achieved on avoiding burning of plastics Plastic free Municipal Solid Waste organic manure Maintenance of the road – Reduced Cost Dr. R. Vasudevan 26 -11 -14
Benefits of laying plastic roads – Rural Roads 1. Rural Roads- 24. 5 lakhs Km if these roads are constructed as plastic tar roads – we need 24. 5 lakhs tones of waste plastics!!!!!!- 2. We prevent nearly 75 lakh tones of Carbon Dioxide entering our atmosphere by burning waste plastics 3. We save 24. 5 lakhs tons of bitumen 4. We save nearly Rs 12250 crores worth of bitumen 5. No maintenance cost for ten years 6. Total waste plastics used for packing material per in India is around 20 lakhs tones only. 7. The plastic available is insufficient for laying rural roads only. 8. In a nut shell the Government provides not only good roads but also uses all the waste plastics and reduces carbon dioxide – bitumen usage. 9. Not less than 20000 crores saved 10. To convert all roads in India to plastic roads we need import plastic waste from other countries 11. If all roads are converted in to plastic roads ? ? ? ? ? Dr. R. Vasudevan 26 -11 -14
PLASTIC TAR ROAD LAID IN INDIA 1. TAMIL NADU GOVERNMENT • DRDA – ALL DISTRICTS (2000 Km. S) • CORPORATIONS – ALL HQ’S • PANCHAYAT BOARDS • HIGH WAYS • Private Promoters Recent Work Himachal Pradesh. Shimla Tata Nagar. Jamshedpur SHILLONG 2. Kerela Government: MEGHALAYA • National Transport Planning and research centre • Private schools and Colleges • Corporation 3. Pondicherry Government – PWD 4. Maharashtra Government – Mumbai Corporation Private Promoters 1. Hosur 2. Jeya Krishna Mill 3. Resorts 4. Cantonment 5. Pondicherry 5. Goa Government – Ponda municipality 6. Andhra Pradesh Government R. Vasudevan 26 -11 -14 Dr. – Hindpur – Private sector
Performance Comparative Study Test Bitumen Road Plastic tar Road Reasoning – plastic tar road Skid Resistance <65 More than the expected value 76 Within the limit 45 Not very smooth – supported by texture value Sand Texture. 6 -. 8 More depth 0. 83 Less depth >0. 6 Due to bonding- in permissable limit Roughness 4000 More bumps 5200 Less Bump >4000 Better binding- less rutting and ravelling Benkelman beam 0. 5 -1 Rebound slightly High 1. 55 Rebound Less 0. 5 -1 Supported by bondingbase surface defect is taken care of by the plastic tar road Density 2. 86 Moderate 2. 88 Moderate Value 2. 55 Better binding Dr. R. Vasudevan 26 -11 -14
Application of Plastone Blocks S. No Products Specialty 1. Path Way Blocks 2. Paver Blocks 3. Water Cannel Linings 4. Compound Walls 5. Lawns Floors 6. Bricks as load bearers 7. Brick for Shock Resisting Walls 8. Rail Sleepers 9. Portable Speed Breakers 10. Surface Modified Decorative blocks (Rubber, Polymer) No Sand No Water No Bitumen No Cement No Adhesives Dr. R. Vasudevan 26 -11 -14 Use of Waste Plastics and Low graded Stones
Acknowledgement: 1. We thank Management, Staff and Principal of Thiagarajar College of Engineering, Madurai 2. We Thank Department of Science and Technology for their financial support for the project under the green chemistry scheme 3. We thank Central Pollution control Board 4. We thank Indian Centre for Plastics and Environment 5. We thank NRRDA- for publishing guidelines 6. We thank CRRI and IRC for their continuous support 7. We thank Govt. of India and Govt. of Tamil Nadu 8. We thank MOEF, India for their continuous support Dr. R. Vasudevan 26 -11 -14
CONTACT DETAILS Dr. R. VASUDEVAN DEAN ECA & PROFESSOR DEPARTMENT OF CHEMISTRY THIAGARAJAR COLLEGE OF ENGINEERING MADURAI – 625015 TAMIL NADU INDIA MOB: +91 -9486486728 EMAIL: deaneca@tce. edu Dr. R. Vasudevan 26 -11 -14
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