Jun 10, 2023, ɛn dis
Di US gɛt di big big RAP sapɔt chen na di wɔl. Dis atikul de chɛk aw asfalt rijuvɛnshɔn de mek valyu na di US makit ɛn aw fɔrina saplay dɛn kin kam insay.
Amɛrika gɛt di big big RAP sapɔt chen na di wɔl. Akɔdin to di Fɛdaral Haywe Administreshɔn (FHWA), di US de mek lɛk 60 milyɔn tan RAP ɛvri ia, we na lɛk 75% de risaykul. Dis mek di US ɔl tu bi di wɔl in bigest RAP prodyusa ɛn kɔshɔma. Bɔt di yutilizeshɔn rɛt stil gɛt rum fɔ impɔtant — na bɔku stet dɛn, RAP kɔntinyu de stil limited to 20-30%, we 60%+ na tɛknikal achievable. Di men tin dɛn we de ambɔg fɔ mek RAP kɔntinyu fɔ bɔku nɔto tɛknikal bɔt na institiushɔnal ɛn ikɔnomik: fɔs, tɛknikal standad dɛn we nɔ kɔnsistɛns akɔdin to stet dɛn, wit sɔm stet dɛn akseptans krayteria fɔ ay-RAP kɔntinyu we stil de fala lɔw-RAP kɔnvɛnshɔn dɛn; sɛkɔn, RAP prayz mɛkanism dɛn we nɔ pafɛkt — na sɔm rijyɔn dɛn, RAP saplai pas lokal dimand ɛn prayz dɛn de fɔdɔm ɔnda in riplesmɛnt valyu; tɔd, kɔntrakta risk avershɔn — pefɔmɛns ɔnsatayniti fɔ ay-RAP kɔntinyu de mek kɔntrakta dɛn favɔret kɔnsavayv dizayn.
FHWA bin pul di ‘Asphalt Rejuvenators for High-RAP Mixtures’ gayd (FA HWA-NHI-16-011) insay 2019, we gi klia tɛknikal kɔmplians rod fɔ ay-RAP risaykul. Ki rεkomεndεshכn dεm inklud: fכs, rijuvεnayt evalueshכn fכ bi pεrformεns-bεys pas kכmכshכn-bεys — fכ fכkus pan post-rijuvεnεshכn bitumεn pεnεtreshכn, sכftεn pכynt, daktiliti, εn pכst-RTFOT pεrformεns; sɛkɔn, fɔ rikɔmɛnd fɔ yuz ‘blending chart’ we fɔ asɛs di blending ifɛkt we fresh ɛn risaykul bitumɛn gɛt; tɔd, fɔ rikɔmɛnd fɔ taya ɛn fɔ tɛst di miksɔp dɛn we dɛn dɔn risaykul fɔ mek dɛn taya ɛn fɔ mek dɛn nɔ du wɛl; fɔs, fɔ ɛnkɔrej fɔ yuz wam-miks tɛknɔlɔji fɔ ridyus di miks tɛmpracha ɛn di efyushɔn. Fɔ fɔrin saplay dɛn, di FHWA gayd de sɛn klia mɛsej: makɛt akses fɔ rejuvenators dipen pan pefɔmɛns data, nɔto di kɔntri usay dɛn kɔmɔt. Di rejuvenator frɔm FangService bin disayn wit FHWA gayd rikwaymɛnt dɛn na maynd — 25°C viskɔsiti fɔ 280 mPa·s, flash pɔynt fɔ 231°C, RTFOT viskɔsiti rɛshɔn fɔ 1.1, ɛn RTFOT mas chenj fɔ 0.9% — ɔl mit di rɛkɛmɔnd rɛnj dɛn fɔ di FHWA gayd.
Di US RAP prayz mɛkanism difrɛn frɔm Yurop in yon. Insay di US, RAP prayz dɛn kin bi bay lokal sapɔt ɛn dimand pas bay riplesmɛnt valyu. Insay di sɛntral ɛn wɛst stet (lɛk Tɛksas, Kalifɔnia), RAP sapɔt bɔku ɛn di prayz kin smɔl lɛk $15-25 fɔ wan tan — we fresh agrɛgat kin kɔst lɛk $40-60 fɔ wan tan. Dis prayz difrɛns min se fɔ yuz RAP nɔ jɔs de sev di kɔst fɔ matirial bɔt i de avɔyd di kɔst fɔ vayjin agrɛgat kwari ɛn transpɔt. Apat frɔm dat, di US bitumɛn prayz kin bi $500-700 fɔ wan tan, we di riplesmɛnt valyu fɔ di ol bitumɛn na RAP de fa fawe pas da prayz de. If yu yuz rejuvenator fɔ rayz RAP kɔntinyu frɔm 30% to 60%, i de sev lɛk 30-40 kg fresh bitumɛn fɔ wan tan miksɔp, we translet to roughly $15-28 fɔ wan tan in sevings pan di prayz dɛn we de naw. Fɔ 100,000 tan projɛkt, dis nɔmɔ de sev $1.5-2.8 milyɔn pan bitumɛn kɔst.
Insay wan Texas I-35 haywe rihabiliteshɔn projɛkt, di Texas Dipatmɛnt fɔ Transpɔt (TxDOT) bin adopt wan ay-RAP rijinereshɔn sɔlvishɔn wit 60% RAP kɔntinyu. Ki data: fɔs, RAP na frɔm asfalt sɔfays we dɛn put 20 ia bifo, we dɛn prosɛs tru TxDOT in gredin sistɛm; sεkכn, di rijuvεnashכn dכz na bin 10% pan di bitumεn mas na di RAP, εn di pכst-rijuvεnashכn pεnεtreshכn bin rεkכv frכm 25 dmm to 50 dmm (vεrjin bitumεn na bin 55 dmm); tɔd, miks tɛmpracha drɔp frɔm 175°C to 125°C, we ridyus fiul kɔnsɔmshɔn bay lɛk 30%; fɔs, di totɛl prɔjek kɔst bin lɛk 32% smɔl pas di kɔvɛnshɔnal hot-miks sɔlvishɔn, wit kabɔn kredit rɛvɛnyu we na bin lɛk $500,000. Di minin fɔ dis kes na dat i de sho se insay di institiushɔnal fremwɔk fɔ di US fedaral haywe dɛn, ay-RAP rijinereshɔn nɔto jɔs tɛknikal wan bɔt i ikɔnomik advantej bak — TxDOT injinia dɛn sho se we dɛn factor di kabɔn kredit rɛvɛnyu ɛn mentenɛns saykl ɛkstenshɔn sevings insay di prɔjek faynans, di kɔmprɛhɛnsif kɔst pas 40% smɔl pas di kɔvɛnshɔnal we.
Fɔ fɔrin asfalt rijuvenatɔ saplay dɛn we de tray fɔ go insay di US makit, di kɔmplians ɛn kɔmɛshɔnal rod dɛn nid fɔ plan di rayt we. Fɔs, tɛnki sɛtifikeshɔn — pripia tɛnki dɔkyumentri ɛn tɛst data akɔdin to wetin AASHTO ɛn FHWA nid, wit indipɛndɛnt tɛst we US-akreditɛd lɛbɔraytri dɛn (lɛk AASHTO Matirial Vɛrifikɛshɔn Labɔrɔtɔri dɛn) du. Sɛkɔn, lokal ɛjɛnsy — fɔ mek patnaship wit US asfalt saplay ɔ distribyushɔn fɔ levayj dɛn kɔstɔma nɛtwɔk ɛn lɔjistik kapabiliti dɛn we de naw. Tɔd, payɔl projɛkt — patna wit wan stet DOT (lɛk TxDOT ɔ Caltrans) fɔ dɔn wan payɔl projɛkt, fɔ gɛda US-lɔkal injinɛri data ɛn pefɔmɛns rɛkɔd. Fɔs, industri asosieshɔn patisipeshon — jɔyn di Nashɔnal Asfalt Pevmɛnt Asɛmbli (NAPA) ɔ ASTM Intanɛshɔnal fɔ tek pat pan industri standad divɛlɔpmɛnt ɛn tɛnki ɛkshɛnj. Afta dɛn 4 step ya, fɔrina saplay dɛn kwalifay fɔ tek pat pan pɔblik bid na di US makit. Di men tin we wi no na dat di US makit na ‘teknɔlɔji-driven’ — as lɔng as di pefɔmɛns data strɔng inof, fɔrin prɔdak dɛn kin kɔmpit wit lokal brand dɛn. Nɔ lɛk di Yuropian makit, di institiushɔnal barɛri fɔ nɔ-lɔkal saplay dɛn na di US makit rili smɔl. 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 →