Kudzorera iyo Arizona Highway kuenda kuPortland Conement Consrete inogona ingoiratidza kubatsirwa kwekushandisa madhaimani kuhukura seimwe nzira yekugeza uye kuzadza. Iyo yekuona inoratidza kuti pamusoro pemakore makumi matatu emakore, mari yekugadzirisa ichave yakaderedzwa neUST 3.9 bhiriyoni.
Chinyorwa ichi chakavakirwa pawebhusar pakutanga chakaitwa panguva yekushamwaridzana kwesangano uye kugeda (Igga) musangano wehunyanzvi munaDecember 2020. Tarisa iyo yakazara yakazara demo pazasi.
Vagari munyika yePhoenix vanoda kwazvo, vakanaka, uye vakanyarara migwagwa. Nekudaro, nekuda kwekuputika kwekuputika kwekuwanda kwenzvimbo uye mari isina kukwana yekuenderera mberi, mamiriro emigwagwa munzvimbo iyi anga ari kuderera mumakore gumi apfuura. Iyo Arizona Dhipatimendi rekufambisa
Phoenix iguta rechishanu rinowanda muUnited States, uye richiri kukura. Guta racho 435-mamaira network emigwagwa uye mabhiriji anochengetwa neDhipatimendi reArizona rekufambisa (Adot) iyo ine nzira ina-nzira neyekuwedzera-mota-mota (HOV) nzira. Nebhajeti rekuvaka yeUS $ 500 miriyoni pagore, dunhu rinowanzoita kunze kwemakumi maviri emabasa ekuvaka pane imwe nzvimbo yemigwagwa yemigwagwa yemigwagwa yechipiri.
Arizona yanga ichishandisa kongiri yekukona kubva pa1920s. Congrete inogona kushandiswa kwemakumi emakore uye chete inoda kuchengetedza makore ese makumi maviri nemashanu. Kune Arizona, makore makumi mana ezviitiko zvinobudirira akaigonesa kushandiswa panguva yekuvakwa kwenzira huru yemugwagwa mikuru muma 1960s. Panguva iyoyo, ichivira mugwagwa nekongiri yaireva kuita yekutengeserana-kubva mumugodhi wemugwagwa. Pakati peino nguva, iyo kongiri yemakona yapera Muna 2003, kuitira kugadzirisa dambudziko renzwi, 1-mukati. Asphalt Rubber Friction Layer (AR-ACFC) yakaiswa pamusoro pePortland Concrete (PCCC). Izvi zvinopa chimiro chinowirirana, chakanyarara kurira uye kusununguka kufamba. Nekudaro, kuchengetedza pamusoro peiyo AR-ACFC yakaratidza kuve kwakaoma.
Hupenyu hwekugadzira kweAR-ACFC ingangoita makore gumi. Huru dzaArizona dzakapfuura hupenyu hwavo hwekugadzira uye vachembera. Nyaya dzinonetsa uye dzakarondedzera dzinoisa matambudziko kune madhiraivha uye hushumiri hwekufambisa. Kunyangwe chinamato chinowanzoguma nekurasikirwa kweinenge 1 inch yedzidzo yemigwagwa (nekuti iyo 1-inch yebhi rabha pazasi), iyo nzvimbo yekushongedza inoonekwa seyakaona pothole neruzhinji uye inoonekwa seyakakomba dambudziko.
Mushure mekuongorora Dhaimani Kukuya, Inotevera-Chizvarwa Concrete Concerce neConcete Scour ) uye kuderera kwemaziso. Randy Everett uye Arizona Dhipatimendi rekufambisa
Arizona inoshandisa iyo International Roughness Index (IRI) kuyera mamiriro emugwagwa, uye nhamba yacho yanga ichitsanangura. . Sekureva kwaIri zviyero zvinoitwa muna 2010, 72% yemigwagwa mikuru intertrate mudunhu iri mune yakanaka. Pakazosvika 2018, iyi chikamu chakange chawira kusvika ku5%. National Highway system nzira dziri kuratidzira zvakare kutsika maitiro. Zviyero muna 2010 zvakaratidza kuti 68% yemigwagwa yaive mune yakanaka. Pakazosvika 2018, nhamba iyi yakanga yadonha kusvika ku35%.
Sezvo mutengo wakawedzera-uye bhajeti harina kukwanisa kuramba uchikwidza Zvematongere izvo zvichiri mumamiriro akanaka mukati megumi kusvika gumi nemashanu ekugadzira hupenyu hwindo - uye zviri kuwedzera kuti dhipatimendi racho riripo rekusimbisa kusarudzika kusimbisa kusimbisa (spray kusara (kushandisa mutete Layer yechiedza, zvishoma nezvishoma akasimbisa asphalt emulsion), kana kugadzirisa zvimedu zvemitambo. Kune maPaves anopfuura hupenyu hwekugadzira, imwe sarudzo ndeyekukuya kubva pakasvika asphalt osphalt uye oisa nyowani nyowani asphalt overlay. Nekudaro, nekuda kwekuwanda kwenzvimbo iyo inoda kugadziriswa, izvi zvinoratidza kuti zvinodhura zvakanyanya. Chimwe chipingamupinyi kune chero mhinduro inoda kudzokorora kugeda kwesphalt nzvimbo ndeyekukuya kwemvura kuchakanganisa uye kukuvadza kongiri, uye kurasikirwa kwechinyorwa chekongiri pane majoini kunyanya.
Chii chingaitika kana Arizona paakadzokera kuPekutanga PCC pasi? Adot anoziva kuti nzira dzekongiri dziri mudunhu dzakagadzirirwa kupa hupenyu hwakareba-hupenyu hwekugadzikana. Dhipatimendi rakazoona kuti kana vaigona kushandisa pasi pePCC kuti vazivise pasi rayo rekunyaradza remoyo kuti riite nzvimbo yakanyarara uye yakagadziridzwa inogona kugara kwenguva refu uye inoda kuchengetedza. Izvo zvakare zvakaderera pane asphalt.
Sechikamu cheiyo purojekiti paSR 101 kuchamhembe kwePhoenix, saka ACFC yakaisa zvikamu zvina zvebvunzo kuti uongorore kongiri iripo apo ichinyarara, chitarisiko chakanyarara uye chitarisiko chemugwagwa chakanaka. Dhipatimendi rakaongororwa madhaimani ekukuya uye anotevera chizvarwa chekonzo Adot iri zvakare kufunga nezve kushandiswa kwekutsvedza (maitiro umo mushini wekutungamira mabheti ekutakura mumugwagwa kuti uvandudze hunhu hwekunakisa) kana micro-chigayo kupedzisa kongiri. Mushure mekuyedza imwe neimwe nzira, Adot akatsunga kuti chimiro cheLongitudinal chakawanikwa neDiamondi Kukura kweTouring Corduroy kutaridzika pamwe neiyo yakanaka yekukwira ruzivo (sezvakaratidzwa neiyo yakaderera iri kukosha) uye ruzha rwakaderera. Maitiro ekukwevera madhayedhi akaratidzirawo kuve munyoro zvakakwana kuti udzivirire nzvimbo dzekongiri, kunyanya kutenderedza majoini, izvo zvakambokuvadzwa nekugezwa. Dhaimani yekukuya zvakare ndiyo mhinduro-inoshanda mhinduro.
Muna May 2019, Adot akafunga kuDhaimondi-geda chikamu chidiki cheSR 202 iri munzvimbo yekumaodzanyemba kwePhoenix. Mugwagwa weAc-ane makore 15 wakavhurwa uye wakavhomora mabwe akasununguka wakakandwa pane mhepo mhepo, uye vatyairi vakanyunyuta pamusoro penharembozha iri kukuvara nematombo anobhururuka mazuva ese. Chikamu chekurasikirwa kwekurasikirwa mudunhu iri chakakwira kupfuura mune dzimwe tsika dzenyika. Nzira yacho zvakare ine ruzha uye yakaoma kutyaira. AdOT akasarudza diamondi-apedza kupedzisa kune mbiri kurudyi nzira pamwe neSR 202 hafu yemamaira yakareba. Ivo vaishandisa bhakiti remutambi kuti ubvise iyo iripo ar-acfc layer pasina kukuvadza kongiri pazasi. Dhipatimendi rakabudirira kuyedza nzira iyi muna Kubvumbi apo vaingova nzira dzekuyedza kudzokera kuPCC mugwagwa. Pashure pokunge chirongwa ichi chapedzwa, iyo AdOT mumiriri akaona kuti mutyairi aifamba kubva kuAr-acfc Lane kune Diamond Pethiti yekunzwisisa
Kunyangwe zvisiri zvese zvirongwa zvekutyaira zvakapera Pamusoro pemakore makumi matatu. Randy Eveett uye iyo Arizona Dhipatimendi rekufambisa
Pakatenderedza nguva ino, iyo Maricopa Government Songs Chirevo chinobvuma kuoma kwekuchengetedza nzira yekuchengetedza nzira uye inotarisa pane ruzha hunhu hwemugwagwa. Mhedziso yakakosha ndeyekuti nekuti ruzha rwakakurumidza kunyangarika nekukurumidza, "kurapa kwedhaimani kunofanirwa kutariswa panzvimbo pesphalt oclay." Kumwe kusimudzira panguva imwe chete ndiyo yekugadzirisa chibvumirano chinobvumira madhaimani kugedaira iyo kontrakiti yakaunzwa kuti ugadziriswe nekuvakwa.
Adot anotenda kuti inguva yekutora iyo inotevera nhanho uye urongwa hwekutanga dhiri rekugeda Iyo nharaunda yaive yakakura kwazvo kushandisa mutambi kubvisa asphalt, saka muchina wechigaling wakashandiswa. Dhipatimendi rinocheka mitsetse muRabha asphalt yeiyo Chilling Contraging yekushandisa segwara panguva yekugaya. Nekuita kuti zvive nyore kune anoshanda kuti uone iyo PCC Pasi pasi pechifukidziro, midziyo yekugaya inogona kugadziridzwa uye kukuvadza kune iyo yepakati kongiri inogona kuderedzwa. Iyo yekupedzisira madhaimani Aya akafanana nehunhu hunhu anogona kuwanikwa nekuti kunyangwe iyo itsva yeAR-ACK PEVIDE kupfuura iyo Diamond Petro, apo iyo AR-ACF yekufamba kwemakore mashanu kusvika 9, mhedzisiro yayo yekuyera yakaenzana kana yakakwira db level. Haisi chete ndiyo ruzha rwemhando yepamusoro yeSR 202 Diamond pasi yakaderera kwazvo kune vatyairi, asi nzira iyo nzira zvakare inoburitsa ruzha rudiki munzvimbo dziri pedyo.
Kubudirira kwemapurojekiti avo ekutanga kwakurudzira Adot kutanga mamwe matatu madhaimondi ekukuya mapurojekiti. Iyo madhaimani yekukuya kwe loop 101 mutengo freeway yapera. Iyo Diamond kugeda kweLoop 101 Pima Freeway ichaitwa kutanga 2021, uye kuvakwa kwe loop 101 I-17 kusvika ku85th Avenue inotarisirwa kuitwa mumakore mashanu anotevera. AdOT inoteedzera mashandiro ezvinhu zvese zvekutarisa kutsigira majoini, ingave kongiri yakambotarisa, uye kuchengetedza kwerudzi uye kukwira mhando.
Kunyangwe zvisiri izvo zvese zvirongwa zvekutyaira zvapera, iyo data yakaunganidzwa kusvika pakururamisa kwedhaimani yekukuya seimwe nzira yekugezesa uye kuzadza. Mhedzisiro yekutanga yekuongorora mutengo inoratidza kuti iyo yekuchengetedza yakanangana nekushandisa kongiri yekucheka, kutsvedza uye kurira kunogona kuderedza mari yekuchengetedza kusvika pamadhora mazana matatu emadhora pane imwe nguva yemakore makumi matatu.
Nekushandisa iyo iripo kongiri phoenix, kwete chete yekugadzirisa bhajeti inogona kuwedzerwa uye mimwe migwagwa inochengetwa mune yakanaka, asi kusimba kwekongiri kunoenderana nekuvhiringidza kunoenderana nekugadziriswa kwemugwagwa kwakadzikiswa. Kunyanya kukosha, veruzhinji vanozokwanisa kunakidzwa nekutyaira kwakanyarara uye kwakanyarara.
Randy Everett ndeye Senior departruter Administrator yeDhipatimendi rekufambisa muCentral Arizona.
IGGA isisiri-purofiti yekubika kwekushamwaridzana yakatarwa muna 1972 neboka revashandi vakazvitsaurira, vakatsaurirwa kukuvandudzwa kwedhaimani yekukuya uye kusvibisa portland congment uye asphalt nzvimbo. Muna 1995, IGGA yakabatana neAmerican Concrete Pavement Association (ACPA), kuumba nhasi igga / acpa conggrete para provation yekudyidzana (Igga / acpa CP3). Nhasi, kudyidzana uku ndekwekunze uye muindasitiri mutungamiri mukushambadzira kwepasirese kweanogadzirira nzvimbo dzekugadzira, concrete yekugadziriswa kwekugadziriswa uye kudzivirirwa kwekugadziriswa. Basa raIgga ndiko kuve rinotungamira tekinoroji uye kusimudzira ruzivo rwekugamuchirwa uye kurongeka kwedhaimani yekukuya uye kugomera, pamwe nePCC kuchengetedza uye kudzoreredzwa.
Kutumira Nguva: Sep-08-2021