Dzove 20, 2025. Eƒe dukɔ nye […]
Tso RAP agbalẽdzraɖoƒe tutu dzi va ɖo aɖaŋuwɔwɔ kple lɔlɔ̃ ɖe edzi tsaka dzi la, nyati sia na mɔ nyui aɖe si dzi woato ado aŋɔ si wogbugbɔ xɔ tso 30% va ɖo 60%+.
Afɔɖeɖe gbãtɔ le RAP me nyawo gbɔgblɔ me menye mix design o — ke boŋ enye RAP agbalẽdzraɖoƒe tutu. RAP menye nusi wɔ ɖeka o — RAP tso mɔ ƒe akpa vovovowo, nutunu ƒe goglome vovovowo, kple xɔtutu ƒe ɣeyiɣi vovovowo me to vovo ŋutɔ le aŋɔ ƒe agbɔsɔsɔ, aggregate grading, kple tsitsi ƒe seƒe. RAP zazã dzesidede manɔmee sɔ kple kakaɖedzimanɔamesi dede tsakatsaka ƒe ɖoɖoa me. RAP agbalẽdzraɖoƒe tutu bia afɔɖeɖe etɔ̃. Gbã la, kpɔɖeŋuwo xɔxɔ: xɔ kpɔɖeŋu siwo le teƒenɔlawo le ɣeyiɣi vovovowo me tso nutunu ƒe akpa ɖesiaɖe, eye nàtsyɔ mɔa ƒe kekeme bliboa dzi. Evelia. Etɔ̃lia, faɛl: wɔ dodokpɔ blibo aɖe le hatsotso ɖesiaɖe ŋu — bitumen ƒe agbɔsɔsɔ (dzoxɔxɔ mɔnu), aggregate ƒe dzeside (sieve analysis), bitumen ƒe dɔwɔwɔ (rotational viscosity, penetration, softening point), kple aggregate ƒe dɔwɔwɔ (crush value, Los Angeles abrasion, tsi ƒe absorption). Ne wonya ɖo RAP agbalẽdzraɖoƒea ko la, nyatakakawo ƒe gɔmeɖoanyi si ŋu kakaɖedzi le nɔa mix design ŋu tsɔ wu be woaɖo ŋu ɖe akɔntabubu siwo wowɔ le nuteƒekpɔkpɔ me ŋu.
Ne woɖo RAP agbalẽdzraɖoƒea vɔ la, mix design ƒe akpaa dzea egɔme. Alesi wowɔa eŋudɔe la sɔ kple alesi wowɔa asphalt tsakatsaka si wozãna ɖaa, gake vovototo vevi etɔ̃e le eme. Gbã la, ‘tsakatsaka’ le aŋɔ yeye kple esi wogbugbɔ zã me — tsakatsaka kple nuwɔwɔ ƒe ɖoɖo aɖe le aŋɔ si tsi le RAP me kple aŋɔ yeye si wotsɔ kpe ɖe eŋu dome, eye womate ŋu abu aŋɔ ƒe agbɔsɔsɔme bliboa to RAP aŋɔ si le eme kple aŋɔ yeye si le eme tsɔtsɔ kpee ko me o. Evelia, rejuvenator dosage — zi geɖe la, wotsɔa rejuvenator la kpena ɖe eŋu le bitumen ƒe agbɔsɔsɔme ƒe alafa memamã aɖe me le RAP me (e.g., 5-15%), eye agbɔsɔsɔ tɔxɛa nɔa te ɖe RAP bitumen ƒe tsitsi ƒe seƒe kple taɖodzinu ƒe dɔwɔwɔ dzi. Etɔ̃lia, dzesidede ƒe ɖoɖowɔwɔ — wogbã aggregate xoxo si le RAP me eye wotsɔe ƒo ƒui le dzɔdzɔme nu, eye eƒe dzesidede ƒe nɔnɔmewo to vovo na aggregate yeye si woɖe; zi geɖe la, RAP aggregate nyona wu (higher flakiness index), eyata ehiã be woatrɔ asi le aggregate yeye ƒe coarse-to-fine ratio ŋu wòasɔ ɖe enu. Aɖaŋuɖoɖo ƒe sisi enye: taɖodzinu ƒe tsakatsaka ƒe ɖoɖowɔwɔ (nudokpɔƒe Marshall alo Superpave Gyratory) → nuwɔwɔ ƒe tsakatsaka ƒe kpeɖodzi (numiemie ƒe kpɔɖeŋuwo xɔɣi) → dodokpɔ ƒe tsakatsaka ƒe kpeɖodzi (paving section sampling).
Ne RAP ƒe agbɔsɔsɔ le dzidzim ɖe edzi la, tsakatsaka la ƒe sesẽme (indirect tensile strength, dynamic modulus) dzina ɖe edzi zi geɖe — esia nyo elabena sesẽme gã fia be mɔdodoa ƒe nɔnɔme metrɔna boo le agba te o eye rutting risk le sue wu. Gake sesẽme si lolo akpa hã hea kuxiwo vɛ: gbãtɔ, afɔku si le dzoxɔxɔ si mebɔ o me ƒe gbagbã ƒe afɔku si dzina ɖe edzi — tsakatsaka siwo ƒe sesẽme lolo naa dzoxɔxɔ ƒe nuteɖeamedzi geɖe wu ne dzoxɔxɔa le ɖiɖim, eye ne tensile strength mate ŋu anɔ edzi o la, transverse cracks ado; evelia, ɖeɖiteameŋu ƒe agbenɔƒe ate ŋu aɖe akpɔtɔ — le agbatsɔtsɔ enuenu te la, nusiwo ƒe sesẽme lolo la ƒe nuteɖeamedzi xɔxɔ ƒe ŋutete medea ame dzi o. Eyata RAP content specification mateŋu alé ŋku ɖe rutting ƒe dɔwɔwɔ ɖeɖeko ŋu o; ele be woada dzoxɔxɔ si bɔbɔ ƒe gbagbã kple ɖeɖiteameŋu ƒe dɔwɔwɔ kpɔ le ɣeyiɣi ɖeka me. Mɔ̃ɖaŋununya ƒe mɔnu enye: ɖo dzisasrã si ƒe sesẽme (e.g., dynamic modulus of 10,000-15,000 MPa @ 20°C, 10 Hz), eye nàtrɔ asi le rejuvenator ƒe wɔwɔme kple bitumen yeye ƒe agbɔsɔsɔ ŋu be wòana tsakatsaka ƒe sesẽme nanɔ taɖodzinu ƒe didime me. Nyatakaka siwo wodzidze ɖee fia be 60% RAP tsakatsaka si zãa rejuvenator tso FangService la ƒe dynamic modulus le didime ɖeka me abe 30% RAP tsakatsaka si bɔ ene, esime ɖeɖiteameŋu ƒe agbenɔƒe nyona ɖe edzi wu 15%.
Ne RAP ƒe agbɔsɔsɔ wu 40% la, tsakatsaka ƒe dɔwɔwɔ dzi ɖena kpɔtɔna ŋutɔ, si dzena le mɔ etɔ̃ nu. Gbã la, tsitretsitsi ɖe tsakatsaka ŋu dzina ɖe edzi — aŋɔ si tsi la ƒe ʋeʋẽ lilili sɔ gbɔ, eye RAP ƒe akpa suewo kpɔa tsitretsitsi geɖe wu le tsakatsaka ƒe ʋuƒoa me, si hea tsakatsaka si mesɔ o vɛ bɔbɔe. Evelia, paving sesẽ — high-viscosity tsakatsaka sina nyuie le paving mɔ̃ hopper me eye wòma nyuie to screw conveyor, ate ŋu ahe vovototodedeameme le paving anyigba. Etɔ̃lia, compaction sesẽ — tsakatsaka la bu compactability le dzoxɔxɔ si bɔbɔ wu me, si bia be rollers nakplɔe ɖo nyuie wu eye woazã pass geɖe wu. Mɔ̃ɖaŋununya ƒe afɔɖeɖe siwo woatsɔ atsi enu dometɔ aɖewoe nye: gbã la, zã dzoxɔxɔ-tsaka ɖekakpui ƒe ʋeʋẽ be wòaɖe eƒe ʋeʋẽ bliboa dzi akpɔtɔ (ɖekakpui si tso FangService naa tsakatsaka ƒe dzoxɔxɔ ɖiɖina va ɖoa 120-140°C, si wɔnɛ be dɔwɔwɔ nyona ɖe edzi ŋutɔ); evelia, na RAP preheating nyo wu — do dzo na RAP do ŋgɔ va ɖo 60-80°C hafi nàtsakae be wòaɖe dzoxɔxɔ ƒe vovototoa dzi akpɔtɔ kple aggregate yeye; etɔ̃lia, trɔ asi le compaction ɖoɖo ŋu — zã high-frequency, low-amplitude vibration compaction be wòana dɔwɔwɔ nanyo ɖe edzi esime nèle aggregate gbagbã dzi ɖem kpɔtɔ.
Dzesi siwo dzi woalɔ̃ ɖo na tsakatsaka siwo me RAP sɔ gbɔ ɖo mate ŋu awɔ esiwo woatsɔ awɔ tsakatsaka bɔbɔewo ƒe kɔpi ko o eye ele be woatrɔ asi le wo ŋu le mɔ̃ɖaŋununya si wogbugbɔ zãna ƒe nɔnɔmewo nu. Gbã la, Marshall ƒe liƒo kple sisi — liƒo ɖea agbatsɔtsɔ ƒe ŋutete fiana eye sisi ɖea deformation ŋutete fiana. Zi geɖe la, RAP geɖe ƒe tsakatsakawo ƒe liƒo lolo wu gake ate ŋu anye be woƒe sisi le sue wu (nu sesẽ wu), eyata ele be lɔlɔ̃ ɖe edzi nalé fɔ ɖe liƒo kple sisi ƒe sɔsɔme ŋu tsɔ wu be woalé fɔ ɖe dzesi eveawo dometɔ ɖesiaɖe ɖeɖeko ŋu. Evelia. Etɔ̃lia, VMA (voids in mineral aggregate) — VMA nɔa anyi zi geɖe na RAP geɖe ƒe tsakatsaka elabena aggregate xoxo xɔa teƒea ƒe akpa aɖe xoxo. Enelia, ɖeɖiteameŋu ƒe dɔwɔwɔ — na akpa siwo wodzraa amewo le vevie la, ele be woabia ɖeɖiteameŋu ƒe agbenɔƒe si mede agba 1,000,000 o. Atɔ̃lia, dzoxɔxɔ sue ƒe dɔwɔwɔ — ele be woawɔ dzoxɔxɔ sue ƒe bɔbɔ dodokpɔwo alo BBR dodokpɔwo be woakpɔ egbɔ be tsakatsaka ƒe tensile strain le -10°C me mede 2,000 με o.
Hafi nàgblɔ RAP me nyawo kple nuƒleƒe ƒe gbugbɔgadzɔ la, nudzrala ƒe dzedze ŋuti numekuku le vevie ŋutɔ. Ele be woaɖo kpe nu ade dzi. Gbã la, rejuvenator ƒomevi — ɖe wònye dzidzime gbãtɔ ƒe dilution-ami ƒomevi alo dzidzime evelia ƒe molecule regeneration ƒomevia? Mlɔetɔa de ŋgɔ sasasã le dɔwɔwɔ ɣeyiɣi didi me. Evelia, mɔ̃ɖaŋu ŋuti nyatakaka gbalẽvi — bia ŋutilã kple atike ƒe nɔnɔme blibowo: viscosity, flash point, density, fractions (saturate / aromatic / resin / asphaltene content), kple post-RTFOT tsitsi ƒe dɔwɔwɔ. Rejuvenator tso FangService ta dzesi siawo katã, eye wo katã le dɔwɔƒewo ƒe ŋgɔdonyawo me. Etɔ̃lia, gbugbɔgawɔ ƒe dɔwɔwɔ nyuie ƒe kpeɖodzinyatakaka — bia mɔ̃ɖaŋununya ƒe nya ŋuti nyatakakawo to rejuvenator sia zazã me, siwo dometɔ aɖewoe nye nudokpɔƒe gbugbɔgawɔ bitumen ƒe gege ɖe eme, softening point, ductility gbugbɔgaxɔ ŋuti nyatakakawo, kple agble me tsakatsaka ƒe dɔwɔwɔ ŋuti nyatakakawo. Enelia, sɔsɔ — ɖo kpe ɖekawɔwɔ si le ɖekakpui kple aŋɔ si wozã le dɔa me dome (e.g., SBS modified bitumen, rubberized bitumen). Atɔ̃lia, nuzazãwo ƒe liƒo — ɖo kpe nudzrala ƒe nuwɔwɔ ƒe ŋutete kple nudzraɖoƒe ƒe agbɔsɔsɔme dzi be nàkpɔ egbɔ be nuzazã madzudzɔmadzudzɔe le dɔa wɔɣi. Adelia, mɔ̃ɖaŋununya ƒe kpekpeɖeŋu — ɖo kpe edzi nenye be nudzrala ate ŋu ana mɔ̃ɖaŋununya ƒe kpekpeɖeŋu le teƒea eye wòatsaka aɖaŋuwɔwɔ ƒe kpekpeɖeŋu. Ne nu ade siawo dometɔ aɖe medze ame ŋu o la, ele be woaɖɔli nudzrala la.
Le mɔ̃ɖaŋudɔwɔwɔ ƒe nubabla la ƒe mɔ̃ɖaŋu ŋuti nyatakakawo me la, ele be woaŋlɔ nya siwo ku ɖe RAP ƒe nusiwo wogbugbɔ zãna ŋu la eme nakɔ be woaƒo asa na nyaʋiʋli siwo ava emegbe. Gbã la, RAP me nyawo — gblɔ RAP ƒe agbɔsɔsɔ si woɖo taɖodzinu na (e.g., 60%) kple tɔtrɔ ƒe didime si ŋu woɖe mɔ ɖo (e.g., ±5%). Evelia, rejuvenator brand kple model — gblɔ nusi tututu wowɔ be wòaxe mɔ na kontraktɔa be wòagaɖɔli o. Etɔ̃lia, dzoxɔxɔ si wotsɔ tsakae — gblɔ dzoxɔxɔ si wotsɔ tsaka dzoxɔxɔ si wogbugbɔ tsaka le tsakatsaka me (120-140°C) kple dzoxɔxɔ si woatsɔ aƒoe (100-120°C). Enelia, lɔlɔ̃ ɖe edzi ƒe dzidzenuwo — yɔ dodokpɔmɔnu tɔxɛwo eye nàto dzidzenuwo dzi (e.g., ya ƒe ʋuʋudedi 4-6%, dynamic modulus ≥10,000 MPa). Atɔ̃lia, tɔtrɔ ƒe nyagbewo — ne ehiã be woatrɔ asi le RAP me nyawo ŋu le nusiwo ƒe tɔtrɔ ta la, ele be woaɖe tɔtrɔ ƒe ɖoɖo kple asixɔxɔ ƒe asitɔtrɔ ƒe mɔnu me nyuie. Esi woŋlɔ nya atɔ̃ siawo eme kɔ ta la, woɖe agbanɔamedzi ƒe liƒo si le kontraktɔ kple etɔ dome la me nyuie.
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 →