June 10, 2023, Eƒe dukɔ nye […]
RAP ƒe nuzazãwo ƒe kɔsɔkɔsɔ gãtɔ kekeake le xexeame le United States. Nyati sia dzro alesi asphalt gbugbɔgawɔ naa asixɔxɔ nɔa United States ƒe asi me kple alesi duta nudzralawo ate ŋu age ɖe emee me.
United States ye nye RAP ƒe nuzazãwo ƒe kɔsɔkɔsɔ gãtɔ kekeake le xexeame. Le Federal Highway Administration (FHWA) ƒe nya nu la, United States wɔa RAP tɔn miliɔn 60 lɔƒo ƒe sia ƒe, eye wogbugbɔ zãa wo dometɔ si ade 75%. Esia na be United States nye RAP wɔlawo kple nuƒlela gãtɔ kekeake le xexeame. Ke hã, zazã ƒe agbɔsɔsɔme gakpɔtɔ li be woawɔ ŋgɔyiyi — le nuto geɖe me la, RAP me nyawo gakpɔtɔ nye 20-30%, esime 60%+ nye mɔ̃ɖaŋununya si woate ŋu awɔ. Kplamatsedonu vevi siwo xea mɔ na RAP ƒe nyatakakawo dzi ɖeɖe kpɔtɔ menye mɔ̃ɖaŋununya o ke boŋ dɔwɔƒewo kple ganyawoe nye: gbãtɔ, mɔ̃ɖaŋununya ƒe dzidzenu siwo mewɔ ɖeka o le dukɔwo me, eye dukɔ aɖewo ƒe lɔlɔ̃ ɖe RAP ƒe nyatakakawo dzi gakpɔtɔ le RAP ƒe ɖoɖo siwo mebɔ o dzi wɔm; evelia, RAP ƒe asixɔxɔ ƒe mɔnu madeblibowo — le nuto aɖewo me la, RAP ƒe agbɔsɔsɔ wu nutoa me ƒe didi eye asiwo ɖiɖina ɖe eƒe asixɔxɔ si woatsɔ aɖɔlii teƒe; etɔ̃lia, kontraktɔ ƒe afɔku tsɔtsɔ ƒo asa na — dɔwɔwɔ ƒe kakaɖedzimanɔamesi le RAP geɖe me nyawo ŋu nana kontraktɔawo lɔ̃a aɖaŋu siwo me woɖea mɔ ɖe nu ŋu le.
FHWA ta ‘Asphalt Rejuvenators for High-RAP Mixtures’ mɔfiame (FA HWA-NHI-16-011) le ƒe 2019 me, si na mɔ̃ɖaŋununya ƒe sedziwɔwɔ ƒe mɔ si me kɔ na high-RAP gbugbɔgazã. Kafukafu veviwo dometɔ aɖewoe nye: gbãtɔ, ele be ɖekakpui ƒe dodokpɔ nanɔ te ɖe dɔwɔwɔ dzi tsɔ wu be wòanɔ te ɖe eƒe wɔwɔme dzi — woalé fɔ ɖe bitumen ƒe gege ɖe ɖekakpui megbe, eƒe fafa, ductility, kple RTFOT megbe dɔwɔwɔ ŋu; evelia, kafukafu be woazã ‘blending chart’ mɔnuwo atsɔ ada alesi aŋɔ yeye kple esi wogbugbɔ zã ƒe tsakatsaka ƒe ŋusẽkpɔɖeamedzi kpɔ; etɔ̃lia, wokafu ɖeɖiteameŋu kple dzoxɔxɔ sue ƒe dɔwɔwɔ dodokpɔ le nusiwo wogbugbɔ tsaka ŋu; enelia, de dzi ƒo be woazã mɔ̃ɖaŋununya si wotsɔ tsaka dzoxɔxɔe be woatsɔ aɖe dzoxɔxɔ si wotsɔ tsakaa nu kple ya si dona le eme dzi akpɔtɔ. Le duta nudzralawo gome la, FHWA ƒe mɔfiamegbalẽa ɖoa gbedasi si me kɔ ɖa: asi si woate ŋu akpɔ na rejuvenators nɔ te ɖe dɔwɔwɔ ŋuti nyatakakawo dzi, ke menye dukɔ si me wotso dzi o. Wowɔ ɖekakpui si tso FangService la kple FHWA ƒe mɔfiame ƒe nudidiwo le susu me — 25°C ƒe ʋeʋẽ si nye 280 mPa·s, keklẽ ƒe teƒe si nye 231°C, RTFOT ƒe ʋeʋẽ ƒe xexlẽme si nye 1.1, kple RTFOT ƒe lolome ƒe tɔtrɔ si nye 0.9% — wo katã woɖo FHWA ƒe mɔfiame ƒe didime siwo wokafu la gbɔ.
United States ƒe RAP ƒe asixɔxɔ ƒe mɔnu to vovo na Europa tɔ. Le U.S.A. la, zi geɖe la, nutoa me ƒe nusiwo woakpɔ kple nusiwo wodi ye nɔa te ɖe RAP ƒe asiwo dzi tsɔ wu be woatsɔ asixɔxɔ si woatsɔ aɖɔli woe. Le titina kple ɣetoɖoƒe nutowo me (abe Texas, California ene) la, RAP ƒe agbɔsɔsɔ sɔ gbɔ eye eƒe asiwo ateŋu aɖiɖi abe $15-25 le tɔn ɖeka me — esime aggregate yeye ateŋu axɔ $40-60 le tɔn ɖeka me. Asi ƒe vovototo sia fia be menye ɖeko RAP zazã ɖea nuwo ƒe gazazã dzi kpɔtɔna ko o, ke eƒoa asa na kpekui kuku kple ʋuɖoɖo hã. Tsɔ kpe ɖe eŋu la, zi geɖe la, United States ƒe aŋɔ ƒe asiwo nyea dɔlar 500-700 le tɔn ɖeka me, evɔ aŋɔ xoxo si le RAP me ƒe asixɔxɔ si woatsɔ aɖɔlii ya mede asi ma nu kura o. Ne wozã rejuvenator tsɔ do RAP ƒe agbɔsɔsɔ ɖe dzi tso 30% va ɖo 60% la, woɖea aŋɔ yeye si ade kilogram 30-40 le tsakatsaka tɔn ɖeka me dzi kpɔtɔna, si fia be woadzra ga ɖo abe dɔlar 15-28 ene le tɔn ɖeka me le asi siwo li fifia nu. Le dɔ si ƒe kpekpeme anye tɔn 100,000 gome la, esia ɖeɖe dzaa ɖea dɔlar miliɔn 1.5-2.8 si wozãna ɖe aŋɔ ŋu dzi kpɔtɔna.
Le Texas I-35 mɔdodo gãwo gbugbɔgaɖɔɖodɔ aɖe me la, Texas Ʋuɖonyawo Gbɔkpɔƒe (TxDOT) xɔ RAP gã gbugbɔgawɔ ƒe kuxia gbɔkpɔnu si me RAP 60% le. Nyatakaka veviwo: gbã la, RAP tso aŋɔ si wotsɔ da ɖe anyigba ƒe 20 do ŋgɔ, si ŋu wotrɔ asi le to TxDOT ƒe dzesideɖoɖo dzi; evelia, rejuvenator ƒe agbɔsɔsɔme nye 10% le bitumen ƒe agbɔsɔsɔ si le RAP me, eye ɖekakpui ƒe gege ɖe eme le ɖekakpui me megbe la gaɖo tso 25 dmm va ɖo 50 dmm (ɖetugbui leaƒe bitumen nye 55 dmm); etɔ̃lia, dzoxɔxɔ si wotsɔ tsakaa woe ɖiɖi tso 175°C va ɖo 125°C, si na ami zazã dzi ɖe kpɔtɔ abe 30% ene; enelia, dɔa ƒe gazazã bliboa ɖiɖi abe 32% ene wu hot-mix solution si wozãna ɖaa, eye ga si wokpɔ tso carbon credit me la ade $500,000. Nya sia ƒe vevienyenye enye be eɖee fia be le United States ƒe dukɔa ƒe mɔdodo gãwo ƒe habɔbɔ ƒe ɖoɖo me la, menye mɔ̃ɖaŋununya koe woate ŋu awɔ gbugbɔgawɔ si me RAP lolo le o ke boŋ eɖea vi le ganyawo hã gome — TxDOT ƒe mɔ̃ɖaŋudɔwɔlawo ɖee fia be ne wotsɔ ga si wokpɔna tso carbon credit kple beléle na tsikpe ƒe kekeɖenudɔwɔwɔ ƒe ga si wodzra ɖo ɖe dɔa ƒe ganyawo me la, gazazã bliboa le ʋɛ wu mɔnu si wozãna ɖaa la wu 40%.
Le duta asphalt rejuvenator dzrala siwo le didim be yewoage ɖe United States ƒe asi me gome la, ehiã be woawɔ ɖoɖo ɖe sedziwɔwɔ kple asitsatsa ƒe mɔwo ŋu ɖe ɖoɖo nu. Gbã la, mɔ̃ɖaŋununya ƒe ɖaseɖigbalẽ — dzra mɔ̃ɖaŋu ŋuti nuŋlɔɖiwo ɖo kple dodokpɔ ŋuti nyatakakawo le AASHTO kple FHWA ƒe nudidiwo nu, kple dodokpɔ le wo ɖokui si to nudokpɔƒe siwo ŋu United States da asi ɖo (abe AASHTO Materials Verification Laboratories ene). Evelia, nutoa me dɔwɔƒe — ɖo hadomeɖoɖowo kple United States asphalt dzralawo alo mamalawo be woawɔ woƒe asisiwo ƒe kadodo siwo li fifia kple nuwo ɖoɖoɖa ƒe ŋutetewo ŋudɔ. Etɔ̃lia, dodokpɔdɔ — wɔ ɖeka kple dukɔa ƒe DOT (abe TxDOT alo Caltrans ene) be woawu dodokpɔdɔ aɖe nu, aƒo United States-nutoa me mɔ̃ɖaŋu ŋuti nyatakakawo kple dɔwɔwɔ ŋuti nuŋlɔɖiwo nu ƒu. Enelia, dɔwɔƒewo ƒe habɔbɔ ƒe gomekpɔkpɔ — wɔ ɖeka kple Dukɔa ƒe Asphalt Pavement Habɔbɔ (NAPA) alo ASTM International be nàkpɔ gome le dɔwɔƒewo ƒe dzidzenuwo ƒe ŋgɔyiyi kple mɔ̃ɖaŋununya ƒe asitɔtrɔ me. Le afɔɖeɖe ene siawo megbe la, duta nudzralawo dze be woakpɔ gome le dutoƒonuƒlegbalẽviwo me le United States ƒe asi me. Gɔmesese vevitɔe nye be United States ƒe asi ƒe dzesi enye ‘mɔ̃ɖaŋununya si wotsɔ kplɔnɛ’ — zi alesi dɔwɔwɔ ŋuti nyatakakawo sẽ ale gbegbe ko la, dutatɔwo ƒe adzɔnuwo ateŋu aʋli ho kple nutoa me ƒe adzɔnuwo. To vovo na Europa ƒe asi la, habɔbɔ ƒe mɔxenu siwo le nudzrala siwo menye nutoa me tɔwo o ŋu le United States ƒe asi me la le sue ŋutɔ. View the Asphalt Rejuvenator Supplier
Gblɔ wò dɔa ƒe nɔnɔme kple nudidiwo na mí, eye míawɔ ɖeka kple egbɔkpɔnu nyuitɔ eye míana ga home aɖe le gaƒoƒo 24 me.
Na Nya Si Woagblɔ Femaxee3-le-1 asphalt rejuvenator (dzoxɔxɔ ƒe tsakatsaka + tɔtrɔ + gbugbɔgadzɔ), RAP ƒe agbɔsɔsɔ >=60% (si sɔ gbɔ wu 100%), tsakatsaka ƒe dzoxɔxɔ 120-140°C, ɖeɖiteameŋu ƒe agbenɔƒe >=85% asphalt yeye, gazazã bliboa 25-40% si bɔbɔ wu. Viscosity 280 mPa·s, flash point 231°C, density 0.96 g/cm3, woateŋu akpɔe le 25 kg alo 1000 kg ƒe kpẽwo me. Do alɔ mɔfiame siwo wowɔ ɖe ɖoɖo nu le didi nu eye nàna batch dodokpɔ ŋuti nyatakakawo, kple asitsatsa ƒe ɖoɖo siwo woate ŋu atia le EXW/FOB/CIF/DDP.
Srɔ̃ nu tso asphalt regeneration agent tiatia kple nyayɔyɔ ŋu →