Masevhisi eRAP Recycling Hot Mix Asphalt Plants Anoderedza Sei Mitengo Pasina Kurasikirwa Nehunhu Hwakanaka?

Wakambozvibvunza here kuti sei maDOT akawanda nevanogadzira mapango ega vari kuvhura "masevhisi ezvirimwa zveasphalt zvinogadzirwa nerap" na2am? Mhinduro pfupi iri nyore: bhajeti riri kudzikira, mitengo iri kukwira zvakanyanya, uye metrics dzekuchengetedza zvinhu zvinogara zviripo ikozvino dzakadhindwa mumushumo wega wega wegore. Mhinduro yakareba - uye inonakidza - yakavigwa munzira iyo zvirimwa zvemazuva ano zvinobata pavement yeasphalt yakadzorerwa (RAP) pasina kushandura rwendo rwako rwakanaka kuita mutambo wemakomba.

Kutanga, Chii Chinonyanya Kuonekwa seRAP?

RAP haisi "zvinhu zvitema zvekare" zvaunogadzira mumugwagwa mukuru. Musanganiswa weasphalt binder yekare inodzorwa zvakasimba uye zvinhu zvepamusoro-soro zvakatoratidza kuti zvinogona kurarama kwemakore ekufamba kwemotokari uye kunyunguduka kwechando. Vakondirakiti pavanotaura nezvemabasa ekugadzira asphalt plants dzinopisa, vanenge vachitaura nezvematanho ekugadzira - kugadzira, kupatsanura, kuyedza, kusanganisa, kudziyisazve, uye kuisa zvinhu pasi - izvo zvinoita kuti migwagwa iyi yakaraswa ive hupenyu hwechipiri. Chokwadi chinonakidza: makiromita imwe chete emugwagwa mukuru wemaguta une migwagwa mina inogona kuwedzera matani angangoita 18,000 eRAP. Izvi zvinoreva marori angangoita 1,200 azere nezvinhu ari kukumbira mukana wechipiri.

Sei Vanhu Vachimhanyira Kumhanya Nekukurumidza Kusvika Ku40%, 50%, Kunyangwe 100% RAP Mixes?

Ngatitaurei nhamba dzinoita kuti vatungamiriri vezvemari vaseke. Virgin binder chete ndiyo inobhadhara kusvika ku60% yemari yezvinhu zveasphalt mix. Chinjana ne40% RAP uye wabvisa inenge 24% yechinhu ichocho usati wadzokera ku paver. Ita izvozvo pa rehab ye100,000-ton interstate uye tiri kutaura nezvekuchengetedza mari inosvika mamiriyoni emadhora. Ehe, nhamba nomwe.

Asi mutengo wacho unongova hafu yenyaya yacho. Masangano iye zvino anowana vanotenga zvinhu zvichibva pacarbon footprint, uye matunhu akati wandei—achitarisa iwe, Colorado neCalifornia—anopa kudzikiswa kwemitengo yekutenga zvinhu kana wasvika pazvinangwa zvekuchengetedza zvinhu. MuchiShona chiri nyore: dzokorora zvakawanda, hwina basa rakawanda, uye wedzera purofiti yako pasina kurodza penzura yako pane chimwe chinhu chekutenga zvinhu.

Mukati meChirimwa: Maitiro Ekuti RAP Recycling Hot Mix Asphalt Plants Services Inobatsira Sei Kugadzira Mashiripiti?

1. Kupwanya & Kuongorora RAP Nemazvo

Zvidimbu zvisina kurongeka hazvidimburi. Masevhisi emazuva ano anopwanya RAP kuita zvidimbu zvehukuru hwepamusoro—kazhinji 12.5 mm—wobva waiisa muzvikamu zviviri. Ma over anodzoka kuti apfuure rimwe; mids inoshuma kumabhini ekudyisa anotonhora. Danho iri rega rinowedzera nguva yekudya kwezvirimwa ne15% uye rinodzivisa kunyunyuta kwe "utsi hwebhuruu" kubva kuvavakidzani.

2. Kuomesa Kwemvura Pamwe Chete vs. Maitiro Ekugadzirisa Mvura Pamwe Chete

Madhiramu ekare anoyerera pamwe chete anopisa RAP pamucheto wekupisa, zvichiita kuti binder ioxidize uye zvichiita kuti musanganiswa wacho ushaye simba. Midziyo mitsva inorwisa kuyerera kwemvura inoisa RAP pasi, kure nemoto usina chinhu. Mugumisiro: binder yekare inoramba ichishanda, uye musanganiswa wako wakadzokororwa unochengetedza kudzivirira kupwanyika kwemhepo kwakaderera kwaunoda, semuenzaniso, muMinnesota Kukadzi.

3. Majekiseni e "Rejuvenator" eVirgin Binder

Heino chikamu chinotonhorera: mainjiniya vanoisa mainjiniya ekugadzirisa hunyoro—dzimwe nguva akagadzirwa nebio, dzimwe nguva aromatic oil blends—pa 0.3% kusvika 0.6% nehuremu hwemusanganiswa. Makemikari aya anogadzirisa zvakare asphaltenes nemaltenes, zvichidzoreredza kugona kwayo kuitira kuti musanganiswa wakadzokororwa uite seresipi ye100% virgin. Funga nezvazvo sezuva re spa remamorekuru easphalt aneta.

4. MaSensor eNIR neGamma-Temperature eNguva Yechokwadi

Zvirimwa zvine mutsa wazvo zvino zvinoisa ma scanner e near-infrared (NIR) pamusoro pebhandi uye ma gamma detectors mukati medhiramu. Ma gizmos aya anoverenga huwandu hwe binder, hunyoro, uye tembiricha masekondi makumi matatu ega ega, ma feeder gates anozvigadzirisa ega uye mafuta ekupisa. Dudziro: musanganiswa wakafanana, mitoro mishoma inorambwa, uye hapana kufona na3am kubva kumaneja wepurojekiti akatsamwa.

Mufananidzo weChiitiko: Pennsylvania Turnpike 2022 Overlay

Panzvimbo pekutakura matani 62,000 eRAP kuenda kunzvimbo yekurasira marara, kambani ye turnpike yakagaya, yakadzosa, ndokudzosazve 94% yayo mu "high-modulus overlay". Mupi webasa re "rap recycling hot mix asphalt plants" akavimbisa hupenyu hwekuneta kwemakore gumi nemaviri, asi bvunzo dzekutanga dzakatoratidza kushanda kwakaenzana ne "virgin SMA" - pamutengo wakaderera we28%. Vateresi vakachengetedza $3.4 miriyoni uye matani 3,900 eCO₂. Hazvina kuipa kubasa rezuva rimwe chete.

Asi Mixed High-RAP Icharamba Iripo Here?

Kusava nechokwadi kune hutano. Chinhu chikuru ndechekugadzira musanganiswa wakaenzana: kugadzira zvinhu zvakaenzana, kusanganisa mabhinda nemazvo, uye kudzora mhando zvakanaka. Kana mabhokisi iwayo aongororwa, data reNational Center for Asphalt Technology (NCAT) rinoratidza kuti 50% RAP mixes inogona kuenderana nekudzivirira marut uye kushivirira kupwanyika kwevirgin mixes. Dudziro: mugwagwa wako hauzoputsike usati wasvika nguva yesarudzo inotevera.

Mazano matatu eQA ekukurumidza kune Vanoongorora

• Chiyero cheguruva reCAP chiri pa1.6 kudzivirira misanganiswa yakaoma inotsemuka kana yapiswa nekupisa.
• Kukwiza kwemhando ye "Demand virgin binder grade bump" (semuenzaniso, PG 64-22 kusvika PG 58-28) kana RAP ikadarika 30% munzvimbo dzepamusoro.
• Simbisai kuti pave neruzivo rwekusimbaradza gyratory rwakapihwa nemakambani kuNinitial, Ndesign, neNmax kuti vabate nyoro dzakasanganiswa nekukurumidza.

Kusarudza Mubatsiri Akakodzera weMasevhisi eAsphalt Plants Recycling Hot Mix

Hazvisi zvese zvipfeko zvine magaba maviri ekubikisa zvinotonhora zvinogona kubata 50% RAP pasina kushandura musanganiswa wako kuita barbecue yebhuruu-utsi. Tsvaga:

1. Rekodhi Yakasimbiswa: Bvunza mapurojekiti eDOT akamboitwa ne ≥40% RAP. Kana vasingakwanise kuratidza data reQC remakore mashanu apfuura, ramba uchifamba.
2. Zvikamu Zvakaunganidzwa: Zvirimwa zvinochengeta zvikamu zvitatu kana kupfuura zveRAP zvinokupa kutonga kwakasimba uye vhoriyamu iri nani.
3. Sisitimu yeKubaya Matumbu: Mapombi akayerwa, maflow meter, uye matangi akagadziriswa zvinoratidza kuti havasi kungodurura mafuta mumadhiramu chete.
4. Mvumo dzezvakatipoteredza: Zvinodzivirira kupisa, mhete dzinobata utsi hwebhuruu, uye zvinotarisa opacity zvinokuchengetedza uri kurudyi rwekuongororwa kweEPA.

Pfungwa Yepamusoro: Kudzokorodza RAP Haisi Yechinyakare—Irutsigiro Rwemari

Pakati pemitengo yemafuta isingachinji, kushomeka kwemafuta, uye mitemo yezvakatipoteredza iri kuramba ichisimba, makontrakita asingateereri masevhisi ekugadzira asphalt plants dzerap recycling hot mix ari kupa basa rinotevera kune vanokwikwidza vakangwara. Saka, wagadzirira kudzivirira bhidha yako inotevera? Bata mugadziri wako wemix mix pafoni, bvunza vanogona kushanda pamwe chete nefekitori nerunyorwa rwuri pamusoro apa, uye tarisa purofiti yako patani imwe neimwe uku huwandu hwecarbon yako huchiderera. Uye nguva inotevera mumwe munhu paanokuudza kuti asphalt yakadzokororwa "yechipiri," ingonyemwerera womuratidza nhamba dzePennsylvania Turnpike. Izvozvo zvinowanzovadzikamisa nekukurumidza.