Molecules rejuvenation bɛ bitumen kɔrɔlen segin cogo min na: K’a ta chimie la ka se foro validation ma

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Awirilikalo tile 20, san 2025

Asphalt rejuvenation tɛ ‘tulu farali bitumen kɔrɔ kan’ dɔrɔn. Nin barokun bɛ kemikoro kɛcogo lajɛ k’a ta bitumini kɔrɔlen jɔcogo la ka taa a bila foro tiɲɛni na.

K’a ta ‘Diluting with Oil’ la ka se ‘Molecular Regeneration’ ma: Asphalt Rejuvenation Technology (Asifalɛti kurayali fɛɛrɛbɔ) bɔnsɔn fila

Asphalt rejuvenation fɛɛrɛ jiginna ka tɛmɛn mɔgɔw bɔnsɔn fila fɛ. Fɛɛrɛ fɔlɔ min kɛra ka mɔgɔw bɔnsɔn, o tun ye tilennen ye : ka tuluw (i n’a fɔ kerozɛni walima distilɛti nɔgɔmanw) ɲagami bitumini kɔrɔlen na walasa ka dɔ bɔ a sɔgɔli la farikolojidɛsɛ fɛ. Nin fɛɛrɛ in musaka ka dɔgɔ, wa a kɛli ka nɔgɔn, nka a gɛlɛyaw bɛ ye o cogo kelen na — dilution tulu kɔnɔ, fɛn nɔgɔmanw bɛ wuli tuguni ɲagami ni baara kɛtuma na, o bɛ kɛ sababu ye ka kɔrɔya filanan kɛ, wa siraba bɛ gɛlɛya kokura ani ka kari san 2-3 baara kɔfɛ. A bɔnsɔn filanan ye molekiyɔmu seginni ye : sanni a k’a jigi da farikolojidɛsɛ kan, a bɛ bitumini kɔrɔlen molekiyɔmu jɔcogo dilan ni timinandiya ye kemikɛli fɛɛrɛw fɛ — ka molekiyɔmu girinya kɛrɛnkɛrɛnnenw ka yeelen tilayɔrɔbaw fa kokura walasa ka kolosinsinnanw balansi segin, ka oksidan ɲɔgɔndanw tigɛ walasa ka molekiyɔmu belebelew lajɛlenw bonya dɔgɔya, ani ka sabatilifɛnw don walasa ka u bali bitumini kura sɔrɔlen ka kristalize kokura. Asphalt rejuvenator min bɛ dɛmɛ ni FangService ye, o ye nin molekiyɔmu seginni fɛɛrɛ filanan in ta ye.

Bitumini ka koloyi modɛli: Asfaltɛn kɔnɔna, resin bɔgɔlanw, ani tulu jɛnsɛnni

Walasa ka molekiyɔmuw ka segin-ka-bɔnye faamuya, mɔgɔ ka kan ka bitumini ka kolosinsinnanw cogoya faamuya fɔlɔ. Bitumini tɛ fɛn nɔgɔman ye nka a ye kolosinsinnan ye min ka gɛlɛn, a bɛ kɛ ni tilayɔrɔba naani ye: asfaltène (a girinya ka bon, a ka polarite ka bon, a tɛ se ka wuli n-hexane kɔnɔ), saturate (a tɛ polari ye, a girinya ka dɔgɔn), aromatiki (polarite cɛmancɛ, a girinya cɛmancɛ la), ani resin (polar, a girinya bɛ asfaltene ni aromatiki cɛ). Bitumini kura kɔnɔ, asfaltɛn kɔnɔna bɛ datugu ni resin mɔlikuluw ye ka u jɔ saturatiw ni aromatikiw fasa la min tɛ ban, ka kɛ sol-gel sigida sabatilen ye. Kɔrɔya waati, tuluw (saturates + aromatics) bɛ dɔgɔya tuma bɛɛ, resinw bɛ ɲɔgɔn sɔrɔ ka wuli ka kɛ asphaltenes ye oksidan kɔrɔ, asfaltene aggregates bɛ bonya, ani kolosinsinnanw jɔcogo bɛ wuli ka bɔ sol la ka taa gel la — ka masin seko bɛɛ bɔnɛ ka tɛmɛ jibɔ kan.

Molecular De-crystallization: Asphaltène aggregats ka labɛncogo sigilen tiɲɛni

Asfaltɛn minnu bɛ bitumini kɔrɔlen kɔnɔ, olu tɛ yen i n’a fɔ mɔlikulu kelen-kelenw — u bɛ nano-skala-jɛkuluw dilan π-π dalajɛli ni idɔrɔzi sirili fɛ, wa o fɛnɲɛnamafagalanw bɛ jɛ ka taa a fɛ ka kɛ mikron-skala kuluw ye. Ni kɔrɔya bɛ ka taa ɲɛ, asfaltene faralenw kɔnɔna molekiyɔmuw labɛncogo bɛ kɛ ka caya ka taa a fɛ, ka yɔrɔw dilan minnu bɛ i n’a fɔ kristalɛ — o ye wale ye min bɛ wele ko de-crystallization walima ordering. O yɔrɔ sigilen ninnu de ye bɔgɔbɔgɔli sababu tilennen ye: u bɛ kɛ degunw sɔrɔyɔrɔw ye funteni dɔgɔyalen na, o bɛ kɛ sababu ye ka bitumini kari kari ni funteni bɛ a ka gilasi jiginni funteni sanfɛ kosɛbɛ. Fɛn minnu bɛ baara kɛ molekiyɔmuw ka kɛnɛyako la, olu bɛ se ka don asfaltɛn faralenw π-π dalajɛlenw cɛ, ka labɛncogo sigilen tiɲɛ molekiyɔmuw ni ɲɔgɔn cɛ ani ka kristali yɔrɔw jɛnsɛn kokura ka kɛ cogoya jɛnsɛnnen ye min tɛ fɛn ye. Nin tɛ dilution nɔgɔman ye — a bɛ asfaltene ka aggregation state structure Changer kosɛbɛ.

Steric-Hindrance Resin: Bitumen kuralen ka kirisitali seginni bali

Gɛlɛyaba min bɛ molekiyɔmuw labɛnni na, o ye ni kolosinsinnan dilancogo bɛna kɔrɔya kokura a marali ni a baara waati. Jaabi ye ɔwɔ ye, ni stabilisateurs tɛ. Bitumini min bɔra a kristali kura la ani min falen don yeelen-yɔrɔ la, o bɛ cogo la min tɛ sabati funteni na, wa asfaltɛn fɛnɲɛnamafagalanw ka teli ka ɲɔgɔn lajɛ kokura ani ka u sigi senkan kokura. Steric-hindrance resin bɛ nin gɛlɛya in ɲɛnabɔ : o resin molecules kɔnɔ, kɛrɛfɛ cakɛda kulu belebelebaw bɛ sɔrɔ minnu ni u sɔgɔra asfaltène fɛnɲɛnamafagalanw sanfɛ, u bɛ kɛ farikolo barika ye min bɛ asphaltène fɛnɲɛnamafagalan kɛrɛfɛtaw bali ka gɛrɛ ani ka segin ka u pake. A bɛ i n’a fɔ ka furaji kɛ kunsigi sɔgɔlen kura kan — a kunsigiw tɛ nɔrɔ ɲɔgɔn na tuguni wa u bɛ to ka jɛnsɛn. Stɛriki-hindrance resin donli bɛ bitumini kura sɔrɔlen maracogo sabatili ɲɛ kosɛbɛ: sanga 48 kɔfɛ foro la 160°C kɔnɔ, a nɔgɔyacogo danfara bɛ se ka kɔlɔsi 2°C kɔnɔ (a ka c’a la, izini ka bɛnkan tɛ tɛmɛ 5°C kan).

Réseau cross-Linked trois-dimensionnel : K’a ta ‘Fluidity seginni’ la ka taa a bila ‘Enhancing Mechanical Properties’ la.

Laadalata dilution-oil rejuvenation bɛ se ka bitumen kɔrɔlenw ka baarakɛcogo segin dɔrɔn ka se bitumen kura hakɛ ma — o ye musakabɔ laɲini ye. Nka molekiyɔmu kurayalan min bɛ bɔ FangService la, o bɛ taa ɲɛ: a kɔnɔ, fɛn dogolen dɔ bɛ a kɔnɔ min bɛ kɛ ni fɛnw ye minnu bɛ baara kɛ bitumɛni kɔnɔ kemikɛli siratigɛ la, ni u bɛ ɲagami funteni na, a yɔrɔ la, o bɛ kɛ sababu ye ka ɲɔgɔndan saba kɛ. Nin rezo in tɛ ji lasegin a cogo kɔrɔ la — a ni a kɔkanna yɛrɛ ye : a bɛ cross-links élastiques moyennes don kolosinsinnan dilancogo labɛnni na, ka bitumini kura sɔrɔlen di elastic recovery seko ma min bɛ tɛmɛ bitumen kura ta kan. Kɛrɛnkɛrɛnnenya la : fɔlɔ, 3D rezo bɛ viscoelasticité ɲɛ, o b’a to siraba bɛ se ka degunw minɛ ka ɲɛ ani k’u tila doni kɔrɔ ; filanan, rezo jɔcogo bɛ jɛɲɔgɔnya sabati bitumini ni aggregate interface cɛ, ka ji tiɲɛni farati dɔgɔya ; sabanan, jirisunba min bɛ ɲɔgɔn cɛ, o bɛ bitumini di a yɛrɛ kɛnɛyali seko dɔ ma — mikro-kariw bɛ se ka da yɔrɔ dɔ la k’a sɔrɔ u ma jɛnsɛn funteni sɛgɛsɛgɛli waati. Kunnafoni sumanlenw b’a jira ko nɛgɛso ɲagaminen kamalenninw ka sɛgɛn ɲɛnamaya bɛ se ka tɛmɛ 85% kan npogotiginin npogotiginin ta la, wa cogoya dɔw la, a bɛ gɛrɛ 100% na.

Laboratowari ka tiɲɛni : Taamaʃyɛn jɔnjɔn duuru k’a ta doncogo la ka se RTFOT ma

Molecules (molecules) seginni nafa ka kan ka jate laboratuwari taabolow la. Asphalt rejuvenators (sɔgɔsɔgɔninjɛ) kama, taamasiyɛn koloma duuru ka kan ka sɛgɛsɛgɛ. A fɔlɔ, doncogo : a bɛ bitumini gɛlɛya jira; a ka c’a la, kamalenninya laɲini ye ka bitumini kɔrɔlen doncogo segin a ma ka tɛmɛ 80% kan bitumini kura ta la. Filanan, nɔgɔyayɔrɔ : a bɛ funteni caman sabatili jira; kamalenninya kɔfɛ, a nɔgɔyayɔrɔ ka kan ka bɛn bitumini kura ta ma, ni danfara tɛ tɛmɛ 3°C kan. Sabanan, ductility : a bɛ kariw kɛlɛli jira funteni dɔgɔyalen na; 5°C ductility ye taamasiɲɛ jɔnjɔn ye, wa a ka kan ka segin a cogo kɔrɔ la ka tɛmɛ 70% kan bitumini kura hakɛ la. Naaninan, sɔgɔsɔgɔninjɛ : Brookfield sɔgɔsɔgɔninjɛ 135°C ka kan ka kɛ a bonya hakɛ kelen na ni bitumini kura ye, o bɛ kɛ sababu ye ka ɲagami ni sɔgɔli kɛcogo sabati. Duurunan, RTFOT kɔfɛ baarakɛcogo : bitumini kura ka kan ka kisi Rolling Thin Film Oven Test ma k’a sɔrɔ baarakɛcogo tiɲɛniba ma kɛ — a caya yeli ±3% kɔnɔ ani kɔrɔya kɔfɛ doncogo hakɛ min ka dɔgɔn 0,7 ye. Rejuvenator min bɛ bɔ FangService la, o bɛ baara kɛ ka ɲɛ taamasiyɛn duuru bɛɛ kɔnɔ: hakɛ danmadɔw ye 25°C sɔgɔsɔgɔninjɛ ye 280 mPa·s, flash point ye 231°C ye, RTFOT sɔgɔsɔgɔninjɛ hakɛ ye 1,1 ye, ani RTFOT mass changement ye 0,9% ye.

Foro tiɲɛni: Cakɛda dafalen kunnafoniw ka bɔ izini na ka taa siraba kan

Laboratowari kunnafoniw ɲumanw ka kan ka tiɲɛ ni foro injiniyɛri kunnafoniw ye. Porozɛ min bɛ kɛ ka RAP caman sɔrɔ, o bɛ kɛ ni nin sɛgɛsɛgɛli fɛɛrɛ ninnu ye. Fɔlɔ, jiriw kɔlɔsili : u bɛ ta fɛnw ɲagaminen waati la walasa ka funteni kelen-kelen ni bitumini dacogo lajɛ, ka a lajɛ ni denmisɛnnin-minɛn in jɛnsɛnnen don pewu 120-140°C la. Filanan, siraba dilanni ni a sɔgɔli kɔlɔsili : sɔgɔli funteni, tɛmɛsira hakɛ, ani a laban density bɛ sɛbɛn ani ka u suma ɲɔgɔn na ni hot-mix yɔrɔ kɔrɔlen ye. Sabanan, core sampling : pavement curing kɔfɛ, cores bɛ sɔgɔ ka sɛgɛsɛgɛli kɛ density, void ratio ani Marshall stability. Naaninan, baara kɛcogo kɔlɔsili kuntaalajan : sensɛriw bɛ don walima taamasiyɛnw bɛ sigi yɔrɔ minnu na sɛgɛsɛgɛli yɔrɔ la, ani sɛgɛsɛgɛliw bɛ kɛ tuma bɛɛ ka tugu flakɛli, kari hakɛ, ani rut juguman na. Kunnafoni minnu bɛ tugu sɛgɛsɛgɛli dakun dɔ la ni 60% RAP ye san fila kɔnɔ, olu tɛ danfaraba jira baarakɛcogo la ni i y’a suma ni ɲagami funteni kɔrɔlen ye, k’a sɔrɔ san sabanan na, yɔrɔ min kɛra kamalennin ye, o bɛ daminɛ ka sɛgɛn baarakɛcogo nafaw jira — o bɛ kɛ bawo bitumini kura sɔrɔlen ka se ka segin a cogo kɔrɔ la, o bɛ taa a fɛ ka nafaw lase doni tali kuntaalajan kɔnɔ.

Sanniko latigɛ: Molecules Rejuvenation ni Dilution Oil ni Bitumen kura

Sirako sannikɛlaw fɛ, sugandili in ye jago ye kosɛbɛ sugandi saba cɛ. Sugandili A : aw bɛ bitumini kura 100% kɛ ni npogotiginin ye (0% RAP) — a musaka fɔlɔ ka ca, a farati ka dɔgɔn fɛɛrɛko siratigɛ la. Sugandili B : aw bɛ tulu dilan walasa ka RAP 20-30% lasegin — musaka fɔlɔ min ka dɔgɔn, nka baara kuntaalajan bɛ ɲininkali kɛ ani a doncogo hakɛ tɛ se ka tɛmɛ 30% kan. Sugandili C : ka baara kɛ ni molekiyɔmu rejuvenator ye walasa ka 60%+ RAP sɔrɔ — musaka fɔlɔ min bɛ A ni B cɛ, nka ɲɛnamaya musaka ka dɔgɔn, kabon bɔli ka dɔgɔn, ani farikolo tangacogo ka ɲɛsin fɛnw dilancogo caman sɛgɛsɛgɛli ma. Sirako porozɛw kama minnu dilanni si bɛ san 3+ bɔ, Sugandili C ka ɲɛnamaya kɔnɔ musaka nafa ka bon kosɛbɛ. Baara kuntaala surun walima kɔrɔtɔko baara kama, Sugandili B bɛ yɔrɔ la hali bi. Sannifeere latigɛ kunba tɛ ‘sugandili jumɛn de ka fisa’ nka ‘nin porozɛ in dilanni ɲɛnamaya ye mun ye, yala gazi bɔlenw bɛna jate sɔngɔko jateminɛ na, wa yala sɔrɔ bɛɛ lajɛlen bɛ sabati’ — nin ɲininkali saba ninnu jaabiw bɛ sugandili ɲuman jira k’a ɲɛsin a yɛrɛ ma.