RAILWAY INFRASTRUCTURE & SUSTAINABILITY: CRUMB RUBBER ... INFRASTRUCTURE & SUSTAINABILITY: CRUMB RUBBER…

<ul><li><p>RAILWAY INFRASTRUCTURE &amp; SUSTAINABILITY: CRUMB RUBBER MODIFIED BITUMEN FOR SUB-</p><p>BALLAST LAYER</p><p>JULIA I. REAL HERRIZTransportation &amp; railway engineering professor</p><p>Universidad politcnica de Valencia</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>PRIVATE COMPANIES</p><p>PUBLIC ENTITIES SUBCONTRACTED</p><p>Integrated project of CDTI national aid program </p><p>Starting Date SEPTEMBER 2009</p><p>Date of Approval APRIL 2010</p><p>End Date JANUARY 2012</p><p>TOTAL BUDGET 4.064.706,00 </p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>NDEX</p><p>1. Can we assure that rail transport is sustainable?</p><p>2. Can we add waste to railway infrastructure?</p><p>3. Can we add crumb rubber modified bitumen to sub-ballast?</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>1. Can we assure that rail transport is sustainable?</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>1. Can we assure that rail transport is sustainable?</p><p>SOURCES SAY THAT:</p><p>RAILWAY: </p><p>-Less emission Transport</p><p>-Efficient Transport</p><p>-Safe Transport</p><p>-Petrol-Independent Transport</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>2. Can we add waste to railway infrastructure?</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>2008/98/CE</p><p>2. Can we add waste to railway infrastructure?</p><p>-Waste+treatment= raw material</p><p>-0% disposal.</p><p>-Waste hierarchy:Energy recovery Recycling</p><p>-...</p><p>-Demolition waste Road gravelA-367-A-357 Malaga</p><p>-Steelworks waste Granular layersEje del Ballonti</p><p>-Dredging materials Fine aggregateTarragona Harbour</p><p>-...</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>BallastSub-ballast SleepersRailsFastenersElastomers</p><p>4.200 m38.000 t</p><p>5.000 m310.000 t</p><p>3.333 sleepers550 m3 concrete</p><p>50 t steel1.100 t aggregate 6.666 pads</p><p>3.333 sleeper pads</p><p>13.333 fasteners</p><p>240 t steel</p><p>2000 cable ducts150 m3 concrete</p><p>Cable ducts</p><p>2. Can we add waste to railway infrastructure?</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>3. Can we add crumb rubber modified bitumen to sub-ballast?</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>30 CM</p><p>BEARING CAPACITY</p><p>IMPERMEABILITY</p><p>3. Can we add crumb rubber modified bitumen to sub-ballast?</p><p>-Crumb rubber modified bitumen, is widely used in roads</p><p>-1978 PlusRide: First patent E.E.U.U.</p><p>-1994 First experience in Spain</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>2</p><p>22,,, )()( tzxzxzx </p><p>=++</p><p>d dd </p><p>9 cm</p><p>3. Can we add crumb rubber modified bitumen to sub-ballast?</p><p>Wave equation</p><p> HIGH VIBRATION ATTENUATION CAPACITY!</p><p>Visco-elastic behavior: Increased dynamic power dissipation at higher %Crumb Rubber (Viscosity: medium-high frequency) Increased Stiffness(Two order of magnitude: low frequency)</p><p>Closed MixtureGap Index &lt; 6%</p><p>Gap Index Test(UNE- EN 12697-8)</p><p>Settlement </p><p>(mm) </p><p>Stress (Pa)</p><p>1,03 49.700</p><p>FACTORED STATIC LOAD(EISENMANN) </p><p>Qd=Qe*(1+t*s*)Qe=17 t/axle Qd=27 t/axle</p><p>EMBANKMENT: Type QS3(E=80Mpa)</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>SUB-BALLAST TYPE MATERIAL COST+PLACEMENT (/m3)GRANULAR SUB-BALLAST 20</p><p>CRM BITUMEN SUB-BALLAST 100</p><p>SUB-BALLAST TYPEBULDING COST</p><p>1 km DOUBLE TRACK ()</p><p>GRANULAR SUB-BALLAST 88.000CRM BITUMEN SUB-</p><p>BALLAST 128.000</p><p>SUB-BALLAST TYPE MATERIAL COST+ SHIPPING + PLACEMENT ()20 km 40 km 60 km 80 km 100 km</p><p>GRANULAR SUB-BALLAST 102.000 121.000 141.000 160.000 179.000</p><p>CRM BITUMEN SUB-BALLAST 135.000 141.000 147.000 154.000 160.000</p><p>3. Can we add crumb rubber modified bitumen to sub-ballast?</p><p>TestFATIGUE RESISTANCE</p><p>(UNE- EN 12697-24; part 24)</p><p>UNALTERABLE(10.106 load cycles)</p><p>Short termAcceptable economic cost</p><p>Long termAcceptable</p><p>economic cost</p></li><li><p>I RAIL TECHNOLOGICAL FORUM FOR INTERNATIONALIZATION</p><p>To sum up</p><p>1. Can we assure that rail transport is sustainable? YES</p><p>2. Can we add waste to railway infrastructure? YES</p><p>3. Can we add crumb rubber modified bitumen to sub-ballast? YES</p><p>Nmero de diapositiva 1Nmero de diapositiva 2Nmero de diapositiva 3Nmero de diapositiva 4Nmero de diapositiva 5Nmero de diapositiva 6Nmero de diapositiva 7Nmero de diapositiva 8Nmero de diapositiva 9Nmero de diapositiva 10Nmero de diapositiva 11Nmero de diapositiva 12Nmero de diapositiva 13</p></li></ul>