Jun 10, 2020
Ɔva 70% pan di rod nɛtwɔk na Afrika na lɔw-volyum ɛn bɔku pan dɛn na pawaful rod. Dis atikul de egzamin aw asfalt rijuveneshɔn de mek valyu ɔnda di patikyula kɔnstrakshɔn dɛn fɔ Afrika rod mentenɛns.
Di rod nɛtwɔk na Afrika de pas 3 milyɔn kilomita (we nɔ de inklud Chaina), wit pas 70% we dɛn klas as lɔw-volyum rod (avɛrej trafik ɛvride we nɔ rich 2,000 motoka dɛn). Wan men tin we de sho se dɛn rod ya na dat bɔku pan dɛn na pawaful rod — nɔto bikɔs Afrika bin pik asfalt, bɔt bikɔs di istri ɛp prɔjek dɛn ɛn di lɔn kɔndishɔn dɛn bin de spɛsifa asfalt bɔku tɛm. Tide, wan big pat pan dɛn pevmɛnt ya dɔn rich dɛn big rihabiliteshɔn saykl: di Afrikan Divɛlɔpmɛnt Bank ripɔt se lɛk 35% pan di rod nɛtwɔk na Sahara Afrika de na ‘poor’ ɔ ‘rili po’ kɔndishɔn. Dis ripresent wan big big mentenɛns nid, bɔt di sem tɛm, di rod badjɛt ɔlsay na Afrika neshɔn dɛn de tayt ɔlsay — Sahara Afrika kɔntri dɛn de gi wan avɛj 1.5-2.5% pan di GDP to rod mentenɛns, we fa fawe pas di 3-4% we di intanashɔnal rɛkɔmɛnd. Ɔnda dɛn kayn badjɛt kɔnstrakshɔn ya, di tradishɔnal ‘rimov ɛn riples’ mɔdel — fɔ pul di ol pevmɛnt kɔmplit wan ɛn put ɔl fresh asfalt miksɔp — nɔ go kɔntinyu fɔ gɛt mɔni.
Insay di kɔntɛks fɔ Afrika rod mentenɛns, di valyu lɔjik fɔ asfalt rijɔvɛnshɔn difrɛn frɔm di wan we divɛlɔp kɔntri dɛn gɛt. Insay Yurop ɛn Nɔt Amɛrika, di rijinereshɔn de drɛb mɔ bay di kabon rigyuleshɔn ɛn di agrɛgrɛt prayz. Insay Afrika, di men drayva dɛn na fɔrin ɛkshɛnj kɔnstrakshɔn ɛn di absɛns ɔf lokaliz sapɔt chen. Fɔs, bitumɛn import dipɛnsin — klos to no Afrika kɔntri nɔ de prodyuz bitumɛn, ɛn ɔl am na import. Bitumɛn we dɛn de import nɔto jɔs dia (inklud freyt ɛn tarif) bɔt i de ɛkspos bak to fɔrin ɛkshɛnj volatility. If yu yuz RAP rijenereshɔn, i kin ridyus di yus fɔ fresh bitumɛn bay pas 60%, we kin kɔt fɔrin ɛkshɛnj ɛkspɛndichɔ dairekt wan. Sɛkɔn, ɔnstɛbul agrɛgat saplai — Afrikan kwari dɛn difrɛn bad bad wan pan kapasiti, kwaliti, ɛn envayrɔmɛnt standad, we di ol agrɛgat na RAP dɔn ɔlrɛdi pruv lokal matirial, we nɔ afɛkt bay kwari sapɔt chen fluktueshɔn. Tɔd, limited tɛknikal kapasiti — injinɛri dipatmɛnt dɛn ɔlsay na Afrika kɔntri dɛn gɛt nɔ ivin tɛknikal lɛvɛl, ɛn di 3-in-1 sistɛm (wɔm-miks + modifyeshɔn + rijɔvɛnshɔn) de mek miks dizayn simpul: di kɔntrakta nɔ nid fɔ ad tri difrɛn prɔdak dɛn, we de mek di tɛknikal barɛri go dɔŋ. Fɔs, plant kɔmpitibliti — wam-miks rijenereshɔn nɔ nid spɛshal ikwipmɛnt ɛn dɛn kin yuz am wit miksin plant dɛn we dɔn de, we rili impɔtant fɔ Afrikan plant dɛn we kin ol bɔku tɛm ɛn we dɛn nɔ kin mentenɛt fayn.
Afrikan RAP risaykul de gɛt sɔm spɛshal prɔblɛm dɛn. Fɔs, dispersed RAP sources — Afrikan rod projɛkt dɛn kin tipikul fɔ impruv insay sɛgmɛnt, ɛn ɛni kɔntrakt sɛkshɔn de prodyuz limited mil volyum, we de mek i at fɔ bil skel RAP saplai. Difrɛn frɔm dat, wan US intastet projɛkt kin mek tɛn tawzin tan RAP frɔm wan mil pas. Sɛkɔn, absɛns ɔf RAP gredin — bɔku pan Afrika kɔntri dɛn nɔ dɔn mek gred RAP stɔrɔj sistɛm; di mil matirial dεm frכm difrεn sεkshכn dεm dεn miks tכgeda, we de mek big vεryushכn pan bitumεn kכntεnt εn agrεgεt gredin, we de ridyus di kwaliti kכntrכl fכ riklaym miks dεm dairekt wan. Tɔd, di tɛknikal standad dɛn we de biɛn — di Afrikan asfalt risaykul standad dɛn kin kɔpi di Yuropian ɔ Amɛrikan standad dɛn we dɛn nɔ de akɔntayn di patikyula kwaliti dɛn we di lokal matirial dɛn gɛt. Fɔs, kapital shɔtat — RAP risaykul ɛn stɔrɔj nid fɔ invɛst bifo tɛm (skrinin ikwipmɛnt, stɔrɔj yad), we na ɔda lod fɔ di Afrikan rod dipatmɛnt dɛn we dɔn ɔlrɛdi gɛt badjɛt. Fɔ ansa dɛn bɔtulnɛk ya, dɛn bin disayn di rijɔvenatɔ frɔm FangService wit wan ‘lɔ tɛknikal barɛri’ filɔsofi: likwid kɔnsɛntret, we dɛn pɔmp dairekt tru di aditiv sistɛm dɛn we dɔn de, we nɔ nid spɛshal stɔrɔj ɔ ɔt ikwipmɛnt.
Insay wan sɛkɔndari rod rihabiliteshɔn projɛkt na Nayjiria, di injinɛri dipatmɛnt bin gɛt wan tipik prɔblɛm: di badjɛt bin jɔs inof fɔ mek 40% pan di sɛkshɔn we dɛn bin dɔn plan, we di kɔvɛnshɔnal hot-miks sɔlvishɔn bin kɔst 60% pas di badjɛt. Afta dɛn introduks asfalt rijuvena, RAP kɔntinyu rich 55%, miksin tɛmpracha drɔp frɔm 180°C to 130°C, ɛn kɔmprɛhɛnsif kɔst fɔdɔm bay lɛk 35%, we alaw di ɔl sɛkshɔn fɔ dɔn insay di ɔrijinal badjɛt. Ki data frɔm dis kes: fɔs, di RAP sɔs na bin asfalt pevmɛnt frɔm wan 2010 kɔnstrɔkshɔn, wit bitumɛn kɔntinyu we na lɛk 5.2%, ɛn di ol bitumɛn penetreshɔn bin dɔn drɔp frɔm di ɔrijinal 65 dmm to 28 dmm; sεkכn, di rijuvεnashכn dכz na bin 10% pan RAP bitumεn mas, εn pכst-rijuvεnashכn pεnεtreshכn bin rεkכv to 52 dmm (80% pan vεrjin bitumεn); tɔd, di Marshall stebiliti fɔ di miksɔp rich 12.5 kN, we mit Naija in tɛknikal rikwaymɛnt fɔ sɛkɔndari rod. Di minin fɔ dis kes na dat i de sho se ɔnda Afrika badjɛt ɛn tɛknikal kɔnstrakshɔn, asfalt rijɔvɛnshɔn nɔto ‘idealistic envayrɔmɛnt opshɔn’ bɔt na di ‘onli faynɛnsly viable sɔlvishɔn’.
Insay Afrika rod injinɛri, di valyu fɔ wam-miks rijenereshɔn (120-140°C) we yu kɔmpia am wit ɔt miks (170-190°C) pas di divɛlɔp kɔntri dɛn, fɔ tri rizin dɛn. Fɔs, fiul prayz — dizil ɛn ebi ɔyl prayz na Afrika kin tipikul ɔp intanashɔnal lɛvɛl (inklud prɛmiɔm afta dɛn pul di sɔbsidi), we de mek fiul kɔst na ay prɔpɔshɔn pan di ɔl kɔst, so di 30% fiul sevings frɔm wam miks kin kɛr big ikɔmik wet. Sɛkɔn, ikwipmɛnt efyushɔn — Afrikan miks plant dɛn jɔs ol ɛn nɔ efyushɔn, ɛn fɔ ridyus miks tɛmpracha dairekt wan de ridyus di ikwipmɛnt lod ɛn fayl rɛt. Tɔd, kɔnstrɔkshɔn winda dɛn — bɔku eria dɛn na Afrika nɔ kin ebul fɔ wok insay di ren sizin, ɛn di wayda kɔmpakshɔn winda fɔ wam-miks rijenereshɔn (lɛk 30-50% lɔng pas ɔt miks) min se dɛn kin dɔn mɔ wok insay di sizin we dɛn kin bil. Apat frɔm dat, wam-miks rijenereshɔn de ridyus di fum ɛn ɔda tin dɛn we de smɛl, we gɛt prɛktikal minin fɔ wokman dɛn wɛlbɔdi protɛkshɔn — ɔnda Afrika fil kɔnstrɔkshɔn kɔndishɔn, ɔkupeshɔn wɛlbɔdi protɛkshɔn bɔku tɛm na sɔntin we dɛn nɔ kin no bɔt we impɔtant fɔ wɔri bɔt.
Wan dip valyu fɔ asfalt rijɔvɛnshɔn na Afrika na di ebul we i ebul fɔ transfɔm rod mentenɛns frɔm ‘impɔt-dipɛndent mɔdel’ to ‘lɔkal-risɔs-bɛs mɔdel’. Ɔnda di tradishɔnal mɔdel, di kɔr matirial fɔ Afrika rod mentenɛns — bitumɛn ɛn agrɛgat — na ɔlmost ɔl dɛn import ɔ transpɔt ova lɔng distans. Dis min se di prɔjek kɔst dɛn de ɛksplɔz to ɔl tu di intanashɔnal prayz volatility ɛn di ɛkshɛnj rɛyt fluktueshɔn. RAP, difrɛn frɔm dat, na lokal matirial — i dɔn ɔlrɛdi de na Afrika in rod dɛn ɛn i jɔs nid fɔ gɛt bak ɛn prosɛs am. Asfalt rejuvenator na bak i rili lokaliz: pan ɔl we in aktif ingridiɛnt dɛn kin kɔmɔt frɔm import, dɛn kin diluted am ɛn ripak am lokal, we kin ridyus transpɔt volyum ɛn kɔst. Di valyu fɔ dis lokaliz sapɔt chen kin bi mɔ we di glob ɔl sapɔt chen dɛn kin ambɔg bikɔs ɔf di pandemik, sankshɔn, ɛn jiyopɔlitikal kɔnflikt — insay di 2020 COVID-19 pandemik, bɔku Afrika kɔntri dɛn bin gɛt bad bad bitumɛn shɔtat wit di prayz we bin go ɔp pas 50%. If dɛn kɔntri dɛn de bin dɔn kip ay RAP invɛntari ɛn rijinereshɔn kapasiti, di impak we di sapɔt chen disrɔpshɔn bin fɔ dɔn rili stɔp.
Fɔ di wan dɛn we de bay na Afrika rod prɔjek, fɔ pik asfalt rijuvena, dɛn nid fɔ tink bɔt tin dɛn we difrɛn frɔm di wan dɛn we de na divɛlɔp kɔntri dɛn. Fɔs, stɔrɔj stebiliti — Afrikan westɛm kɔndishɔn dɛn kin tipikul fɔ po (ay tɛmpracha, nɔ tɛmpracha kɔntrol), ɛn di rijuvenatɔ fɔ mentɛn pefɔmɛns stebiliti ɔnda nɔ-ideal stɔrɔj kɔndishɔn. di rijuvenator frכm FangService de kכntro difrεns fכ sכft pכynt insay 2°C afta 48 awa na 160°C, we pas di industri rikwaymεnt fכ 5°C fa fawe. Sɛkɔn, fɔ kɔmpitabl wit lokal bitumɛn — Afrika kɔntri dɛn de yuz bitumɛn frɔm difrɛn say dɛn (we dɛn kin import frɔm difrɛn kɔntri dɛn we de mek ɔyl), ɛn di rijuvenatɔ fɔ kɔmpitabl wit difrɛn bitumɛn sɔs dɛn. Tɔd, aksessibiliti fɔ tɛknikal sɔpɔt — Bɔku tɛm, Afrikan prɔjek dɛn nɔ kin gɛt badjɛt fɔ onsayt tɛknikal sɔpɔt, so di spɔlayt in ebul fɔ gi rimot tɛknikal sɔpɔt ɛn miks dizayn ɛp na impɔtant tin fɔ tink bɔt. Fɔs, pak spɛsifikɛshɔn — smɔl pak (e.g., 25 kg drɔm) na mɔ prɛktikal na Afrikan prɔjek pas big pak (1,000 kg drɔm, bikɔs ɔf limited onsayt stɔrɔj ɛn handlin kɔndishɔn. Fayv, prayz ɛn pe tɛm — Afrikan prɔjek dɛn tipikli badjɛt-kɔnstrayn, ɛn di saplaya in ebul fɔ gi fleksibul pemɛnt tɛm ɛn a lokal ejen nɛtwɔk na impɔtant kɔmɛshɔnal kɔnsidareshɔn. View the Asphalt Rejuvenator Supplier
Tɛl wi yu prɔjek sɛnɛriɔ ɛn wetin yu nid, ɛn wi go mach di rayt sɔlvishɔn ɛn gi wi kot insay 24 awa.
Gɛt wan Fri Kɔt3-in-1 asfalt rijuvenatɔ (wɔm miks + modifyeshɔn + rijinereshɔn), RAP kɔntinyu >=60% (maksimal 100%), miksin tɛmpracha 120-140°C, taya layf >=85% nyu asfalt, kɔmprɛhɛnsif kɔst 25-40% smɔl. Viskositi 280 mPa·s, flash poynt 231°C, density 0.96 g/cm3, we de insay 25 kg ɔ 1000 kg drɔm. Sɔpɔt kɔstɔmayz fɔmula dɛn pan dimand ɛn gi batch tɛst ripɔt, wit opshɔnal tred tɛm dɛn fɔ EXW/FOB/CIF/DDP.
Lan bɔt asfalt rijinereshɔn ɛjɛn sɛlɛkshɔn ɛn kot →