Webinar yakatevedzana kubva kuNational Asphalt Pavement Association yakaiswa kuratidza mabhenefiti eichi chinhu chirikubuda
Kudzokorodza matayi inzira yekushandura kupera-kwehupenyu kana kusada matai ekare kuita zvinhu zvinogona kushandiswa muzvigadzirwa zvitsva.Matayi ekupedzisira-ehupenyu anowanzo kuve vamiriri vekudzokorora kana asisashande nekuda kwekupfeka kana kukuvadzwa uye haachakwanise kutsika-tsika kana kukwizwa patsva.
Maererano neindasitiri yematai, kudzokorodza matayi inyaya yebudiriro huru.Kuunganidzwa kwematayi akaraswa kwadzikira kubva pabhiriyoni muna 1991 kusvika pamamiriyoni makumi matanhatu chete panosvika 2017 uye indasitiri yeasphalt chinhu chikuru mukuderedza huwandu hwematayi mumarara.
Ground rubber applications yakaverengera 25% yezvikara zvakashandiswa tire muna 2017. Ground rubber inoshandiswa kugadzira zvinhu zvakawanda asi kushandiswa kukuru kwerabha yepasi ndeyeasphalt rubber, kushandisa anenge 220 miriyoni pounds kana 12 miriyoni matai gore negore.Vashandisi vakuru veasphalt rabha imatunhu eCalifornia neArizona, ichiteverwa neFlorida, nekushandiswa kunotarisirwa kukura mune dzimwe nyika zvakare.
Recycled tire rubber (RTR) kubva kumarara matayi akashandiswa muasphalt neindasitiri yekugadzira kubva kuma1960.RTR yakashandiswa seasphalt binder modifier uye asphalt musanganiswa wekuwedzera mune gap-graded uye yakavhurika-giredhi asphalt musanganiswa uye pamusoro pekurapa.
Recycled tire rabha inongo shandiswazve tire rabha iro rakagadzikwa kuita twudiki twunoshandiswa seasphalt modifier.Kuwedzera pasi tire rabha kune asphalt kunogona kubatsira mukuvandudza rutting kuramba, skid kuramba, kukwira mhando, hupenyu hwepavement uye kuderedzwa kweruzha rwekufamba.Kuwedzera rabha kune asphalt mvura inodzoreredza kuchembera uye oxidation yezvinokonzeresa binder, izvo zvinowedzera hupenyu hwepavement nekudzikisa brittleness uye kuputika.
Kubata nekutsemurwa kwematayi inzira yakarongwa uye yakatariswa kuti ibudise zvinhu zverabha zvakachena uye zvinonyatsoenderana.Iyo crumb rabha inogadzirwa kuburikidza nekuita kwekukuya matai erabha kuita zvidimbu zvidiki.
Mukati megadziriro yacho, waya inosimbisa vhiri uye faibha zvinobviswa.Simbi inobviswa nemagineti uye fiber inobviswa nekushuvira.Kugadzira matai uchishandisa cryogenic fracturing kunosanganisira kucheka zvidimbu zvakakura zvematayi kuita madiki, anowanzo 50 mm zvidimbu, uchishandisa zvinopinza simbi inocheka.Zvimedu zvidiki izvi zvinobva zvaoma nechando uye zvinotsemuka.Zvimedu zverabha zvinosefa uye zvakapatsanurwa muzvikamu zvakasiyana-siyana, sekutsanangurwa kwazvinoitwa nemutengi.Izvo zvinokonzerwa nerubha zvimedu zvinogara zvakakura uye zvakachena kwazvo.Otomatiki mabhegi masisitimu anobatsira kuve nechokwadi chekuti mabhegi anorema uye kubvisa kusvibiswa kwemuchinjikwa.
National Asphalt Pavement Association (NAPA), ichange ichitambira Iyo Iyo Rubber Inosangana neMugwagwa Webinar Series zhizha rino pa recycled tai rabha uye asphalt.
Nguva yekutumira: Jun-19-2020