June, 2023
Ewe US a wor an ewe nenien amomo RAP mi watte won fonufan. Ei porous a nenengeni ifa usun an asphalt epwe niwinsefan a fori auchean non ewe marketin Merika me ifa usun ekkewe chon kamo seni fonu towaw ra tongeni tonong.
Merika a wor ewe nenien amomo RAP mi watte seni meinisin won fonufan. Me ren ewe Mwichen Sou Pwungupwung (FHWA), ewe fonu Merika a fori ukukun 60 milion ton RAP iteiten ier, nge ukukun 75% seni ena ra niwinsefan. Ei a fori pwe US epwe ewe fonu mi watte an aramas fori me aea RAP won fonufan. Nge, ewe ukukun aea mei chuen wor nenien fefeita — non chommong state, masowen RAP mei chok nomw non 20-30%, nge 60%+ mei tongeni fis non pekin tekia. Ekkewe watten osukosuk ren an epwe watteno masowen RAP esapw ren pekin angang nge ren pekin angang me pekin moni: aewin, ese tipeew ekkewe annukun pekin angang non ekkewe state, ren ekkoch state ar repwe etiwa masowen RAP mei watte ra chuen fiti ekkewe annukun RAP mei kukkun; oruwan, ese unusoch ekkewe napanapen monien RAP — non ekkoch kinikin, ewe RAP a nap seni met aramas ra mochen me ekkewe moni ra kukkun seni ewe ukukun monien siwin; oruwan, ewe mochenin chon angang — ese fat ren angangen ekkewe porousen RAP mi watte a emweni ekkewe chon angang ar repwe efich ekkewe design mi kon fitikoko.
FHWA a fori ewe puken emwen ‘Ekkewe chon anisi asphalt ren ekkewe pisekin angang mei watte RAP’ (FA HWA-NHI-16-011) non 2019, a awora ew aan mi fatafatoch ren an epwe fis fitikoko ren angangen anisi ekkewe pisekin angang mei watte RAP. Ekkewe kapasen pesepes mei auchea mei pachenong: aewin, ewe angangen etittina ewe chon anisi aramas epwe anongonong won angang nge esapw anongonong won masowan — epwe chok anongonong won an epwe tonong non ewe bitumen mwirin an epwe niwinsefan, ewe nenien sopweno, ewe ductility, me ewe angangen RTFOT mwirin an epwe niwinsefan; oruwan, a pesei ngeni an epwe wor napanapen ‘blending chart’ ren an epwe apwungu ewe angangen nofitfengenin ekkewe bitumen mi fo me ekkewe bitumen mi fen niwinsefan; oruuan, a pesei ngeni ekkewe sossotun angangen famini me fitikoko ren ekkewe minen nofit mi fen niwinsefan; foun, pesei ngeni an epwe wor angangen warm-mix pwe epwe aukuuku ewe fitikoko me ewe fitikoko. Ren ekkewe chon awora pisek seni fonu towaw, ewe puken emwen seni FHWA a tinato ew porous mi fatafatoch: tufichin market ren ekkewe chon niwinsefan a anongonong won ekkewe pisekin angang, esapw ewe fonu ra feito me ia. Ewe minen apwapwa seni FangService a for ren an epwe ekieki usun ekkewe annukun FHWA — 25°C 280 mPa·s, 231°C ttaman, 1.1 ttamen RTFOT, me siwinin mas RTFOT 0.9% — meinisin ra tori ekkewe annukun FHWA mi affat.
Ewe kokkotun RAP lon Merika a sokko seni ewe kokkotun Europe. Non US, ekkewe price ren RAP ra kan anongonong won met aramas ra awora me met ra mochen nge esapw ren niwinin pisek. Non ekkewe kinikinin nefinen me otiw (usun Texas, California), ewe RAP a chommong me ukukun moni epwe tongeni ukukun $15-25 ew ton — nge ewe minefon pisek epwe tongeni ukukun $40-60 ew ton. Ei sokofesenin moni a wewen pwe ach aea RAP ese chok amanaua monien pisek nge epwe pwan tumunu seni monien forata me uwei ekkewe virgin aggregate. Pwan ew, ukukun monien ewe puun non Merika a kan $500-700 ew ton, nge ewe niwinin siwinin ewe puun me nom non RAP a fokkun kukkun seni ena ukukun. Ach aea ew pisekin niwinsefan ne aukuuku ewe RAP seni 30% ngeni 60% epwe amanaua ukukun 30-40 kg ewe bitumen mi fo ren ew ton ewe minen nofit, epwe wewe ngeni ukukun $15-28 ew ton non ewe amanau ren ukukun moni ikenai. Ren eu angang mi tori 100,000 ton, ei chok a amanaua $1.5-2.8 milion monien bitumen.
Non ew angangen awenewen ngeni ewe aanen I-35 non Texas, ewe nenien angangen awenewen non Texas (TxDOT) a angei ew angangen awenewenen RAP mei watte ren 60% RAP non. Ekkewe pisekin pwarata mei auchea: aewin, RAP a seni ewe nenien asphalt mei nomw 20 ier me mwen, a fis ren an TxDOT we angangen grade; oruuan, ewe ukukun chon amomo a 10% seni ewe chochon chon amomo non ewe RAP, me ewe minen amomo mwirin ewe minen amomo a niwinsefan seni 25 dmm ngeni 50 dmm (ewe minen amomo mi fo a 55 dmm); oruuan, ewe pwichikar mi nofitfengen a kukkunulo seni 175°C ngeni 125°C, iwe, a kisikisilo ewe fitikoko ren ukukun 30%; foun pwei, unusen ewe monien angang a ukukun 32% kukkun seni ewe angangen fitikoko mi fis non fansoun nangatam, ren ewe monien aninisin carbon a ukukun $500,000. Ewe auchean ei case pwe a pwarata pwe non ewe kokkotun ekkewe aan mi watte non ewe muun Merika, ewe angangen forsefani ewe RAP mi watte ese chok tufich non pekin technology nge a pwan tongeni fis non pekin moni — ekkewe chon angangen TxDOT ra pwarata pwe nupwen monien carbon credit me monien tumunu ewe fansoun tumun ra kapachelong non ewe monien prokram a kukkun nap seni ewe monien prokram mi weweoch nap seni4.
Ren ekkewe chon awora pisekin asphalt seni fonu towaw ra kutta ar repwe tonong non ewe marketin Merika, ekkewe aanen fitikoko me angangen kamo mi namwot epwe wor kokkot mi pwung. Aewin, taropwen pwarata usun pekin angang — ammonata ekkewe taropwen angang me ekkewe pisekin tes anongonong won ekkewe annukun AASHTO me FHWA, ren ekkewe tes mei pwisin fis ren ekkewe nenien angang mei mumuta me ren US (usun ekkewe nenien angang mei mumuta me ren AASHTO). Oruwan, ewe nenien angang — forata chiechi ngeni ekkewe chon awora ika chon amomo asphalt non Merika pwe repwe tongeni aea ar kewe nenien kamo me tufichin logistics mi nomw. Oruwan, angangen achocho — chiechi ngeni ew DOT non ewe state (usun TxDOT ika Caltrans) ar repwe awesi ew angangen achocho, achufengeni ekkewe pisekin angangen ewe nenien US me ekkewe rekotun angang. Fou, fiti mwichen chon angang — fiti ewe mwichen chon angang (NAPA) ika ASTM International pwe repwe fiti ewe angangen forata ekkewe nenien angang me siwinin ekkewe pisekin angang. Mwirin ekkei fomon kinikin, ekkewe chon kamo pisek seni fonu towaw ra tongeni fiti ewe bidding ngeni aramas non ewe marketin Merika. Ewe mirit mi auchea pwe ewe marketin Merika a fis ren ‘technology-driven’ — ukukun an ekkewe pisekin angang mi pochokun, ekkewe pisekin fonuwen nukun ra tongeni fiu ngeni ekkewe pisekin fonu. Ese usun ewe maketin Europe, ekkewe minen eppet ngeni ekkewe chon kamo rese nom non nenier non ewe maketin Merika ra chok kukkun. View the Asphalt Rejuvenator Supplier
Kopwe ereni kich usun omw ewe prokram me met ka mochen, iwe am aupwe match ngeni ewe pwungun sossot me awora ew quote non ukukun 24 awa.
Angei ew Quote mi ngaw3-non-1 ewe pisekin anisi ewe asfalt (a fiti ewe asfalt mi pwichikar + siwini + forsefani), ewe RAP >=60% (a nap seni 100%), ewe pwichikar mi nofitfengen 120-140°C, ewe manawen apwangapwang >=85% ewe asfalt mi fo, ewe ukukun monien asfalt mi unus 25-40% kisikis. Iwe, a wor 280 mPa·s, a 231°C, a 0.96 g/cm3, a wor lon ekkewe 25 kg are 1000 kg. Kopwe anisi ekkewe formula mei fis ren omw kopwe mochen me awora repotun sossotun batch, ren ekkewe annukun kamo mei tongeni finata ren EXW/FOB/CIF/DDP.
Kopwe kaeo usun ewe chon angangen forsefani asfalt me ewe quote →