Chirimwa Chinosanganisa Asphalt Chinopisa Chingaderedza Sei Mari Yako Uye Kuderedza Kabhoni Yako Panguva Imwe Chete?

Nei Vagadziri Vemakontrakita Vachingoerekana Vanyanya Kufunga Nezvekudzokorodza Kupisa

Kana wakamboshanyira chero indasitiri munguva pfupi yapfuura, pamwe wakaona ruzha rwefekitori yekusanganisa asphalt inopisa . Haisi imwe michina inopenya chete; yava nzira inoshandiswa nevanhu vakawanda kuti varambe vachiita purofiti uku vachifara nemakambani emigwagwa. Asi chii chinoita kuti tekinoroji iyi ive inokwezva, uye nei vashandi vadiki vekugadzira mapani vachifarira nzira iyi? Ngationgororei.

Zvinoreva "Kudzokorora Zvinhu Zvitsva" muChirungu Chisina Kujeka

Zvichitaurwa zviri nyore, kudzokorodza zvinhu zvinopisa kunoita kuti ubvise nzira yemugwagwa yakatsemuka nezuro, uipise, uipwanye, woisanganisa nechinhu chakasanganiswa nebitumen—wozoidzosera pasi. Mashiripiti aya anoitika mukati mefekitori yekusanganisa asphalt inodzokorodza zvinhu zvinopisa uko RAP (Reclaimed Asphalt Pavement) inodziiswa kusvika patembiricha chaiyo, inovandudzwa, uye inosanganiswazve pamutengo unogona kupfuura 60% yemusanganiswa. Dudziro: unoda zvinhu zvitsva zvishoma, mafuta mashoma, uye nzvimbo shoma yekurasira marara.

Equation yeDollars-and-Cents

Kuchengetedza Zvinhu

Mitengo yebhitumini yave kukwira zvakanyanya seumhutu hunoputika pakati pehusiku. Tani yega yega yeRAP yaunoshandisazve inotsiva inenge 5% yebhitumini isina kuchena. Pabasa remugwagwa rematani 50 000, mari iyi inosvika $250 000 yakachengetedzwa—yakakwana kuita kuti maneja wepurojekiti anyemwerere kubva kune imwe nzeve kuenda kune imwe.

Kuderedzwa Kwemarara & Kutakura Marara

Mari yekurasa marara haisiriyo yaimbove; yatoipa. Nekushandisa zvakare zvigayo panzvimbo iyi unodarika gedhi remarara uye mudungwe wemarori anotakura zvinhu "zvakarasika". Imwe ongororo yeDOT yakaitwa munguva pfupi yapfuura yakaratidza kudzikira kwe38% kwemitengo yekufambisa apo fekitori yekusanganisa asphalt inopisa yakashandiswazve panzvimbo penzira ye "mill-and-hull" yechinyakare.

Zvikumbiro zveMitero & Zvikwereti zveGreen

Nyika dzinoverengeka dzekuUS dzava kupa mabhonasi anotsvedza emhando yepamusoro emusanganiswa une zvinhu zvakadzokororwa ≥30%. Mitengo yebhidhi inodzikira, mitengo yekuhwina inokwira, uye accountant wako anongoerekana arega kufefetera zvakanyanya pakupera kwemwedzi.

Kukunda Kwezvakatipoteredza Kunofadza Kunyange Vatongi Vakasimba

Kuderedza CO₂ emissions ne15–25% patani yemusanganiswa kunonzwika zvakanaka papepa, asi zvinotonyanya kunaka kana uri kupa chirongwa kukanzuru yeguta pasi pe microscope kuti uwane zvipikirwa zvemamiriro ekunze. Muto wakavanzika idhiramu rekuomesa rinopisa RAP nekukurumidza pasina kupisa mafuta emwenje aunoda kuti ashande zvakanaka. Bitumen shoma zvinorevawo kuti mafuta mashoma anobviswa, saka uri kuisa chiratidzo mumabhokisi ese eScope 1 neScope 3 pabhokisi recarbon. Hazvina kushata zvakanyanya, handiti?

Kusarudza Kurongeka Kwemiti Yakakodzera

Kuyerera Kwakafanana vs. Kuyerera Kwakasiyana

Madhiramu anoyerera nemhepo anonyanya kutengeswa mumusika wezvishandiso zvekusanganisa asphalt zvinopisa nekuti zvinoparadzanisa magasi anopisa kubva kunzvimbo yekutanga yeRAP. Izvi zvinodzivirira utsi hwebhuruu uye zvinochengetedza kuburitswa kwemahydrocarbon pasi pemiganhu yeEPA inogara ichisimbiswa.

Pugmill imwe chete vs. Twin Shaft

Unoda musanganiswa wakafanana zvikuru pa50% RAP? Twin-shaft pugmill inokupa nguva yekugara iri pasi pemasekondi makumi mana nemashanu, iyo yakakwana kufukidza chidimbu chimwe nechimwe pasina oxidation. Single-shaft units inogona kusvika 40% RAP, asi inodhura zvishoma kana specs dzebasa rako dzakajairika dzichimira pa20–25%.

Zviteshi zveJekiseni rekuwedzera

Zvirimwa zvemazuva ano zvinouya nezviteshi zvekugadzirisa zvirimwa, fibers, kana kunyange plastic modifiers. Taura majekiseni esimbi isina ngura kana ukaona kuchinja pakati pemajekiseni anogadzirwa newax nebio-oil; zvikasadaro, uchatsiva mapaipi anowanzo ora mwaka wega wega.

Kuisa & Matambudziko Ekushanda Hapana Anotaura Nezvazvo

Zvakanaka, heino dambudziko riri mukamuri: fekitori inopisa yekudzokorodza haishande. Uchada:

• Kukwanisa kuwedzera kwekushandisa RAP yakapatsanurwa (hongu, unofanira kunyatsoongorora magayiro iwayo);
• Bhiriji rekuyera rinogona kubata kudya kwemvura mbiri—nekuti RAP ne virgin aggregates zvinopinda nekumhanya kwakasiyana kwebhandi;
• Chinoongorora hunyoro chakavimbika. RAP pa5% hunyoro uchienzaniswa ne1% inogona kukwidza mutoro weburner yako ne12%, izvo, ndinovimba, zvinoonekwa pamari yemafuta.

Uye kachidimbu kadiki kegirama kuti zvinhu zvirambe zviri nyore: "Chirimwa chinomhanya zvakanaka kana RAP feed yagadziriswa." (Inofanira kunge "ichimhanya," asi hapana akakwana, handiti?)

Mazano Ekugadzirisa Kuti Uchengetedze ROI Yako Iri Pagwara

Asphalt yakadzokororwa ine mafirita ane guruva anogona kuputira mafirita emubhegi nekukurumidza kupfuura virgin mix. Tenderedza mafirita maawa ega ega 800 ekushanda panzvimbo pe 1 200 yakajairwa. Uyewo, mapillow esimbi isina ngura ari mukati mepugmill anoderedza kupera simba ne30% zvichienzaniswa nesimbi yekabhoni - zvakakodzera kuwedzera kana uri kuwedzera RAP. Uye, gara uine kamera ye thermographic iri pedyo kuti uone nzvimbo dzinopisa pamabhaketi eelevator; clinker building ichakanganisa simba rako.

Nyaya Yechokwadi: 40% RAP paInterstate 35

Texas DOT payakavakazve nzvimbo yemakiromita gumi nemaviri pedyo neWaco, kontrakita akachinjana nefekitori yekusanganisa asphalt ine simba re250 tph yakagadzirirwa 40% RAP. Musanganiswa uyu wakasangana nePG 76-22 specs, wakachengetedza matani 18 000 e virgin aggregate, uye wakapedza mavhiki maviri zvisati zvaitika. Zvinotoshamisa ndezvekuti, ongororo yehupenyu hwedhipatimendi yakafanotaura kuwedzera kwe22% muhupenyu hwemugwagwa nekuda kwepolymer-modified rejuvenator yavakaisa. Chinhu chikuru ndechekuti: purojekiti iyi yakauya ne8% pasi pebhajeti uye yakawana kontrakita mari yekuwedzera ye$1.2 M mubhadharo wekukurudzira.

Mafambiro Emangwana: Kudzokorodza Zvinhu Zvakanyanya Kupisa 100% Kungava Chaizvo Here?

Vaongorori muNetherlands munguva pfupi yapfuura vakaedza dhiramu rebhitumini rine furo rinogona kusvika 90% RAP pa160 °C. Kukura kwesimba rekutanga rekubata kunoita sekunge kune tariro, asi dambudziko riripo richiri kuchinja muhuwandu hweRAP. Tarisira kuti manejimendi ekuchengetedza midziyo inotungamirwa neAI—funga nezvemadrone ekufungidzira ehyperspectral—aite kuti chikafu chive chakafanana mukati memakore mashanu. Kana izvozvo zvikaitika, "virgin aggregate chete" inogona kuva mutauro unonakidza unotaurwa nevakuru vako.

Zvinhu Zvinokosha Zvekutevedzera Nyanzvi Dzekugadzira Paving

Ungave uri dhipatimendi remigwagwa yekanzuru kana kuti kambani yekuvaka paving, kubatanidza fekitari yekusanganisa asphalt inopisa inoshandiswa pakugadzirisa zvinhu muzvikepe zvako hakusi kungotevera mafashoni asi kunonyanya kutaura nezvenhamba dzakaoma: mitengo yakaderera yezvinhu, kuderedzwa kwemhepo inobuda mucarbon, uye mitengo iri nani. Tanga zvishoma kana zvichidikanwa—ngatiti 25% RAP—asi tsanangura fekitari yako kuitira kuti ugone kukwira kusvika ku50% kana masangano emunharaunda akawedzera basa rawo rekushandisa zvinhu zvakagadziriswazve. Remangwana—iwe (neakaunti yako) uchafara kuti wakaita izvozvo.