Isityalo sokuxuba esitshisayo seAsphalt sinciphisa njani iindleko ngaphandle kokunciphisa umgangatho?
Kutheni Abakhi Bebuza Ngezityalo Zokuxuba Ezisebenzisa I-Asphalt Hot Recycling
Ukuba ubukhe waya kwimiboniso yokwakha iindlela kutshanje, mhlawumbi ukhe weva ingxolo ejikeleze isityalo sokuxuba izinto ezishushu ze-asphalt . Wonke umntu uthetha ngayo—abaphathi beeprojekthi, iinjineli ze-DOT, kwanabaqhubi beelori ababesoloko bethetha ngezinto ezingaqhelekanga kuphela. Kodwa nanku umbuzo oxabisa izigidi zeerandi: ngaba obu buchwephesha bungayinciphisa ngokwenene imali ngaphandle kokuguqula indlela yakho ibe ngumnyhadala onamagingxigingxi? Masikhe sijonge size sifumane impendulo.
Yintoni kanye kanye "Ukuphinda Usebenzise Okushushu" Ngaphakathi Kwisityalo?
Libala ulwimi olusetyenziswayo kancinci. Ukuphinda usebenzise izinto ezishushu kuthetha ukuphinda ufudumale i-asphalt pavement (RAP) ephinde yasetyenziswa kwakhona uze uyixube ne-aggregate entsha kunye ne-bitumen ngaphakathi kwidrama efanayo . Lo mlingo wenzeka kwi-150–160 °C, apho i-binder endala iphinda inyibilike kwaye idibane nezinto ezintsha. Isiphumo? Umxube oziphatha njengeresiphi engaqhelekanga kodwa uqulethe ukuya kuthi ga kwi-50% yomxholo ophinde wasetyenziswa. Icocekile, akunjalo?
I-Dollars-and-Cents Equation
Masithethe nge-turkey. I-Virgin binder ixabisa malunga ne- $700 ngetoni kwiichweba ezininzi zase-US. Tshintsha i-40% yaloo nto nge-RAP kwaye usanda konga i-$280 kwitoni nganye ye-binder . Kumsebenzi we-interstate one-20 000-tons, oko kukunciphisa i-$5.6 yezigidi zeerandi . Nokuba emva kokuba ucinge ngamandla okomisa angaphezulu kunye ne-rejuvenator ene-dose ephezulu, usajonge ukonga okuphindwe kabini. Isebe lakho lezemali liya kukuthanda ngenxa yoko.
Ngaba Umgangatho Uyancipha? Idatha Yelebhu Ithetha Kakhulu Kunamahemuhemu
Iilabhoratri ezizimeleyo ze-DOT eTexas nase-Ontario zenze uvavanyo lwe-rutting kwi-50% ye-RAP mixes eyenziwe kwisityalo sanamhlanje sokuxuba i-asphalt hot recycling . Uzinzo oluguquguqukayo lubuye kwi- 3 200 cycles/mm2 , ngaphezulu kwe-2 000 ubuncinci. Xa umonakalo womswakama ungonakali, umlinganiselo wamandla okutsalwa ufikelela kwi-2 000.92 % , idlula i-80% spec. Inguqulelo: indlela eme ngayo ithatha ixesha elide—ngamanye amaxesha ixesha elide—kuneendlela ezingasebenziyo kuphela .
Ukutshintsha Ukusuka Kwiqela Ukuya Kwirisayikili: Ziziphi Iinguqu Kwindawo?
Ngaphambi kokuba uphume ngokukhawuleza uye kulungisa i-batch tower yakho yeminyaka yoo-1970, yazi oku: uya kufuna idrama ehambelanayo okanye indawo yokomisa ephindwe kabini ukukhusela i-RAP elangatyeni elithe ngqo. Uya kongeza ne -rejuvenator dosing skid kunye ne-RAP cold-feed bin ene-variable-frequency drives. Owu, kwaye enye into— ikhompyutha yakho yesityalo iya kufuna uhlaziyo lwesoftware ukuze ilandelele iindawo ezininzi zobushushu ngaxeshanye. Nje ukuba olo hlengahlengiso lugqityiwe, ungatshintsha phakathi kwe-virgin kunye ne-recycled mixes ngaphantsi kwemizuzu engama-45.
Iingenelo Zokusingqongileyo Ezenza Abalawuli Bancume
Itoni nganye ye-RAP oyisebenzisayo igcina i-0.45 t ye-CO₂ emoyeni—ilingana nokutyala imithi engama-20. Phinda-phinda loo nto ngeetoni ezizizigidi ezi-3 ze-RAP esele zigciniwe e-US kwaye uthetha nge-carbon footprint yesixeko esiphakathi esinyamalala ngobusuku obunye. Iikhredithi ze-LEED kunye neemarike zekhredithi ye-carbon ziqala ukuvuza loo mkhwa, ngoko ke uluhlaza alusekho nje umbala—lunokuhlawulelwa.
Iintsomi Eziqhelekileyo, Ezifihliweyo
Intsomi 1: “I-RAP yinto emnyama nje eqatha eyenza kube nzima ukuxuba.”
Inyani: Ngokwahlulwahlulwa ngokuchanekileyo kunye nokulungiswa kwegesi okushushu kakhulu , i-RAP iyafana ne-virgin aggregate.
Intsomi yesi-2: “Awunakudlula i-25% ye-RAP kwiindlela zokuntywila.”
Inyani: IMissouri DOT isandula ukubeka umphezulu we-50% RAP SMA kwi-I-35 ngo-2022—akukho kuqhekeka emva kobusika obubini.
Uluhlu Lokuqala Olukhawulezileyo Lokujonga Abathengi Abaqalayo
- Funa i -RAP feed yesantya esiguquguqukayo ukuze ifikelele ku-±1% yokuchaneka.
- Gxininisa kwiisensa zobushushu ze-infrared kwi-drum output ukuthintela umsi oluhlaza okwesibhakabhaka.
- Cela isixhobo sokutshintshiselana ubushushu esizihlambululayo ukuze ungakhweli ngaphakathi ngesixhobo sokuhlamba ubushushu qho ngeveki.
- Xoxa ngesiqendu sohlaziyo lwesoftware seminyaka emihlanu ; ubuchwepheshe buhamba ngokukhawuleza kweli candelo.
Ukuqinisekisa Ikamva: Igwebu Elifudumeleyo, Izinto Ezivuselela Ulusu, Nangaphaya Kwalo
Abaphandi baseNetherlands sele befaka i-bitumen efudumeleyo ye-foam kwi-110 °C, nto leyo enciphisa amandla angama-12%. Okwangoku, izinto ezivuselela ulusu ezisekwe kwisoya zithatha indawo yeeoyile ze-petroleum flux, zishukumisa umxholo ophinda usetyenziswe ukuba usetyenziswe.70 % . Abantu abasebenzisa izixhobo zabo kwangethuba abacinga ukuba isityalo sokuxuba izinto ezishushu ezisetyenziswa njenge-asphalt esinee-modular burner ports baya kukwazi ukufaka ezo teknoloji ngaphandle kokuthenga idrama entsha. Cinga ngayo njengokukhusela i-capex yakho kwixesha elizayo.
Ingongoma engundoqo: Ngaba utyalo-mali lufanelekile ngo-2024?
Zama amanani aphantsi kwisityalo esithwala iitoni ezingama-200 ngeyure esisebenza nge-40% ye-RAP. Uza kuphinda ufumane iphakheji yokuphinda usebenzise i-$1.2 yezigidi kwiinyanga ezili-14 ngamaxabiso anamhlanje. Cinga ngeekhredithi zekhabhoni, iifizi zokulahla inkunkuma, kunye ne-halo yokuthengisa "yomakhi weendlela eziluhlaza," kwaye imbuyekezo iyehla iye ngaphantsi konyaka . Ngoko ke, i-hype iyinyani. Umbuzo kuphela oseleyo ngulo: ungaqalisa nini?
