Recycled Asphalt Pavement - AAPA Q Transport Alliance Reference Group 17 June 2009 Recycled Asphalt Pavement 1 Recycled Asphalt Pavement Gavin Soward QDTMR Principal Engineer Road Surfacings ... Strategic Alliance Reference Group 17 June 2009 Recycled

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<ul><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 1</p><p>Recycled Asphalt Pavement</p><p>Gavin SowardQDTMR Principal Engineer Road Surfacings</p><p>Rob VosAAPA Queensland Executive</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 2</p><p>Benefits of RAP</p><p> Benefits Reduced energy </p><p>consumption</p><p> Conserving raw materials</p><p> Reduced cost</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 3</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 4</p><p>The Findings</p><p> RAP increased resilient modulus</p><p> RAP increased creep resistance</p><p> RAP can be readily manufactured to a nominated design</p><p> Fragmenting and screening required</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 5</p><p>The Recommendations</p><p>Provision should be made within Departmental documentation for RAP material to be able to be incorporated into production mix used on Main Roads works</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 6</p><p>MRTS30 and 31 RAP Requirements</p><p> RAP permitted up to 15%</p><p> Required to be fragmented and screened</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 7</p><p>The Future</p><p> Research on fatigue properties</p><p> Use of higher percentages of RAP</p><p> Use in surfacings??? </p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 8</p><p>Gold Coast</p><p>Sunshine CoastGladstone</p><p>Mackay</p><p>HMA producers view</p><p> Changed Main Roads specification welcomed</p><p> Production based focus simplifies changes to mix approval</p><p> Is common practice in local municipal asphalt - 10 to 20 years experience</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 9</p><p>Portable RAP crushing and screening plant Portable RAP crushing and screening plant </p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 10</p><p>Portable RAP production plant with stockpilesPortable RAP production plant with stockpiles</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 11</p><p>RAP valuable and locked upRAP valuable and locked up</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 12</p><p>Fixed RAP production facilities </p><p>Uniformity of gradation &amp; binder content </p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 13</p><p>RAP into Batch Plant Pug Mill</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 14</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 15</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 16</p><p>Three covered stockpile bins Three RAP cold feeders</p><p>Covered collector belt</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 17</p><p>Screen</p><p>Screen &amp; delivery belt</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 18</p><p>Easy expansion </p><p>Difficult upgrade </p><p>RAP capability will varyacross HMA plants space considerations extra capex to upgrade plant age vs investment size of market for RAP availability of RAP</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 19</p><p>RAP &amp; Sustainability</p><p> Reduces material consumption binders / aggregates</p><p> Energy saving carbon saving</p><p> Warm Mix Asphalt extra advantages</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 20</p><p>RAP is Worth the Virgin Material it Replaces </p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 21</p><p>RA</p><p>Road Project with RAP available</p><p>Waste dump siteA</p><p>ggregate quarry</p><p>Asphalt Plant</p><p>At least 15% RAP* saves haulage waste* reuses bitumen (reduces mix requirement)* reduces aggregate (haul &amp; volumes)</p><p>Bitumen $800 / tonne 5.5% $44 materialsAggregate $38 / tonne 93.5% $35 $81 / tonneLime $230 / tonne 1% $2 plusHaulage $0.50 / tonne / km ???? haulageRAP at 15% ( 3.5% bitumen, 96.5% aggregate)= 0.15x($800 x .035 +$38 x .965) - processing haulage= $9.70 less processing less haulage cost (not 15% $81)</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 22</p><p>RAP potential </p><p>Availability Major projects high volumes (&gt;75Kt p.a.)</p><p> Collection &amp; management on smaller works (&gt;25Kt p.a.)</p><p> Need to develop collection capabilities</p><p>Usage Current 15%, Cl320 DG14 &amp; 20 in bases good start</p><p> Limited in effectiveness limited demand</p><p> Wearing course not included Long term savings expect $2 to $5 per tonne</p><p>for 20% Business as usual = $1.25 million budget saving= $2.88 million resource saving</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 23</p><p>RAP members capacity</p><p> All new plant in SEQ can handle 25% to 50% RAP</p><p> Projects are being undertaken with up to 30% RAP</p><p> Stockpiles of more than 6 000 tonnes ready to be used Gold Coast</p><p>Sunshine CoastGladstone</p><p>Mackay</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 24</p><p>RAP next steps</p><p> Get going on major projects</p><p> higher percentages &gt;30% possible Would increase rut resistance / modulus</p><p> Binder stiffening CL320 towards CL600</p><p> Cost savings on cheaper binder (~10%)</p><p> in wearing course Currently used for municipal areas along coast</p><p> Should be suitable in low skid demand areas </p><p> Overlays, milling &amp; shape correction in future</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 25</p><p>RAP - vision Valuable product </p><p> savings possible up to $8 / tonne (after capex) </p><p> Ongoing improvements &amp; energy efficiency</p><p> Commercial drivers best for implementation</p><p> Even better when used with Warm Mix Asphalt C02, worker friendly, energy saving</p></li><li><p>Stra</p><p>tegi</p><p>c A</p><p>llian</p><p>ce R</p><p>efer</p><p>ence</p><p> Gro</p><p>upSt</p><p>rate</p><p>gic </p><p>Alli</p><p>ance</p><p> Ref</p><p>eren</p><p>ce G</p><p>roup</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>17 Ju</p><p>ne 2</p><p>009</p><p>Recycled Asphalt Pavement 26</p></li></ul>