Ɔberɛfɛw da 20, afe 2025
Efi binder ne aggregate a wɔkora so so kosi ahoɔden a ɛkɔ fam ne baabi a wɔkwati sɛ wɔtow nneɛma gu so no, asɛm yi kyekyɛ nneɛma a ɛma nkwa nna mu ka a ɛba fam ma asphalt a wɔasan de adi dwuma no mu.
Ade a edi kan na ɛyɛ tẽẽ sen biara wɔ asetra mu ka ho nhwehwɛmu mu ne bitumen binder a wɔkora so. Wɔ 0% RAP hot-mix mixture a wɔtaa de di dwuma mu no, tɔn biara hia bɛyɛ 45-55 kg a wɔde bitumen a ɛyɛ foforo (egyina afrafrade no mu nsɛso ne design bitumen dodow so). Sɛ rejuvenator no ma wotumi de 60% RAP ka ho a, wobetumi atew bitumen foforo a wɔde di dwuma no so akɔ bɛyɛ 18-22 kg wɔ ton biara mu — a ɛyɛ sika a wɔkora so bɛyɛ 60% wɔ bitumen foforo ho. Wɔ mprempren bitumen bo a ɛyɛ bɛyɛ yuan 3,000-4,000 wɔ tɔn biara mu no, eyi nkutoo ma wɔkora yuan 80-130 wɔ afrafra tɔn biara mu. Wɔ pavement adwuma a emu duru yɛ tɔn 100,000 ho no, saa ade biako yi sie yuan ɔpepem 8-13. Saa akontaabu yi nnya nkaa carbon a wɔtow gu ne ahoɔden a wɔde di dwuma a ɛso tew a efi bitumen a ɛyɛ foforo kakraa bi a wɔde di dwuma mu ba no ho.
RAP dodoɔ bɛyɛ 90-95% yɛ aggregate (aboɔ a wɔabubu, anhwea, ne filler), na saa aggregates yi, wɔ sieving ne grading akyi milling akyi no, wɔbɛtumi de adi dwuma tẽẽ sɛ aggregate wɔ afrafradeɛ foforɔ mu. Sɛ wɔde toto virgin aggregate ho a, RAP aggregate ma ɛka a edidi so yi sie: nea edi kan no, ɛka a wɔbɔ wɔ abo a wotu ho — a nnwinnade ne adwumayɛfo ka a wɔbɔ wɔ ɔtopae, abubu, ne screening ho nyinaa ka ho; nea ɛto so abien, akwantu ho ka — akwan anaa keteke kwan so nneɛma a wɔde fi abodan mu kɔ adwumayɛbea foforo; nea ɛto so abiɛsa, nneɛma a atwa yɛn ho ahyia ho ka — nneɛma a atwa yɛn ho ahyia a wɔbɛsan asiesie ne nneɛma a atwa yɛn ho ahyia a wɔhwɛ so wɔ mmeae a wotu abo, a ɛkɔ soro wɔ nnansa yi mfe mu; nea ɛto so anan, bere ho ka — virgin aggregate a wɔde ma no yɛ nea wɔabara esiane abo a wotu ne akwantu tebea nti, bere a RAP aggregate no wɔ hɔ ntɛm ara. Sɛ wɔka bom a, RAP aggregate no bo yɛ mmerɛw 30-50% sen virgin aggregate. Sɛ wɔde afrafra a RAP 60% wom a, ɛka a wɔbɔ nyinaa a wɔkora so no bɛyɛ 20-40 yuan wɔ ton biara mu.
Sɛnea yɛadi kan aka ho asɛm no, ɔhyew-afrafra a wɔsan de di dwuma no ma afrafra hyew so tew fi 170-190°C kosi 120-140°C, na ɛma wɔkora bɛyɛ 30% wɔ pɛtro a wɔde di dwuma no mu. Sɛ wogyina pɛtro a wɔde di dwuma bɛyɛ 30-40 MJ wɔ afrafra tɔn biara mu ne pɛtro bo a ɛyɛ bɛyɛ 3-4 yuan wɔ kilogram biara mu (wɔabu akontaa sɛ ngo a emu yɛ duru yɛ pɛ) so a, pɛtro ho ka a wɔkora so no bɛyɛ 15-25 yuan wɔ tɔn biara mu. Ebia ɛbɛyɛ te sɛ nea dodow yi sua, nanso sɛ wɔde adwuma no nsenia a ɛyɛ tɔn 100,000 bɔ ho a, ɛyɛ yuan ɔpepem 1.5-2.5. Bio nso, pɛtro a wɔtew so no de mfaso a ɛnteɛ ba: wɔ carbon aguadi gua ahorow so no, wobetumi adan fango a wɔtew so a wɔtew so tɔn biara ayɛ no carbon credits a wotumi di gua. Wɔ mprempren carbon bo a ɛyɛ bɛyɛ yuan 50-80 wɔ CO2 tɔn biara mu no, adwuma a wɔde san yɛ tɔn 100,000 betumi ama wɔanya sika bɛyɛ yuan 500,000 kosi 800,000 wɔ carbon boseabɔ mu.
Sɛ wɔansan amfa RAP anni dwuma bio a, wobetumi atow agu baabi a wɔtow gu nkutoo. RAP ka a wɔbɔ wɔ nneɛma a wɔtow gu ho no bi ne nneɛma pii: nea edi kan, ɛka a wɔbɔ wɔ baabi a wɔtow nneɛma gu a wɔde di dwuma ho — wogye sɛnea dodow anaa emu duru te, bɛyɛ yuan 20-50 wɔ tɔn biara mu; nea ɛto so abien, akwantu ho ka — ɛka a wɔbɔ wɔ RAP a wɔtwe fi beae a wɔresi dan no kɔ baabi a wɔtow nneɛma gu, a ɛka a wɔbɔ no kɔ soro bere a ɛkɔ akyiri no; nea ɛto so abiɛsa, asase so nneɛma a wɔde di dwuma — RAP nwura a wɔtow gu no gye asase so nneɛma a ɛho yɛ na kɛse wɔ nkurow akɛse ho; nea ɛto so anan, nneɛma a atwa yɛn ho ahyia ho asiane — bitumen a akyɛ a ɛwɔ RAP mu no betumi ayi nneɛma nketenkete a ɛwɔ nkwa mu afi hɔ bere a wɔtow gu, na ɛde asiane a ebetumi aba asase ase nsu so. Sɛ yɛkan saa ka yi nyinaa a, asetra mu ka a wɔbɔ wɔ RAP tɔn biara a wɔtow gu ho no bɛyɛ yuan 50-100. Ɛdenam nneɛma a wɔsan de di dwuma so no, wɔkwati saa ka ahorow yi koraa, na ɛkyerɛ sikasɛm ne asetra mu mfaso horow.
Asetra mu ka ho nhwehwɛmu ntumi nhwɛ adansi ho ka a wɔbɔe mfiase no nkutoo; ɛsɛ sɛ wosusuw adansi akyi nsiesie ne nsiesie ho ka nso ho.Pavement a wɔde rejuvenator di dwuma no da su ahorow pii adi a ɛtew bere tenten a wɔde siesie ho ka so. Nea edi kan, ɔbrɛ nkwa tenten — elastic recovery tumi a rejuvenated bitumen brɛ micro-mpaapaemu trɛw wɔ mpɛn pii loading ase, trɛw akɛse rehabilitation kyinhyia fi amanne kwan so mfe 8-10 kosi 12-15 mfe. Nea ɛtɔ so mmienu, nsuo a ɛyɛ den a ɛko tia — afã mmiɛnsa a ɛwɔ cross-linked network no hyɛ bond ahoɔden mu den wɔ bitumen-aggregate ntam, ɛtew ntokuru ne stripping a nsuo asɛe de ba no so. Nea ɛto so abiɛsa, rutting a ɛko tia yiye — ɔhyew a ɛkorɔn a ɛgyina pintinn a bitumen a wɔayɛ no foforo no ye sen sɛnea wɔhwɛɛ kwan, na rut nkɔso yɛ brɛoo. Nsiesie kyinhyia a ɛtrɛw kyerɛ sɛ mprempren bo a wɔbɔ wɔ nsiesie ho ka so tew kɛse wɔ nkwa nna nyinaa mu. Akontaabuo a wɔayɛ no mmerɛw kyerɛ sɛ sɛ wɔtrɛw nsiesie kyinhyia no mu fi mfeɛ 10 kɔsi mfeɛ 15 a, ɛtew ahosiesie akɛseɛ dodoɔ so firi 2 kɔsi 1 wɔ mfeɛ aduasa nhyehyɛɛ nkwa nna mu, na ɛkora adansiɛ ho ka a ɛdi kan no 15-20% a ɛne saa adeɛ yi nko ara mu no yɛ pɛ.
Sɛ yɛbɔ atifi hɔ nneɛma no mua fi afrafra tɔn biara mu a, ɛka a wɔkora so no mu nkyekyɛmu te sɛ nea edidi so yi: bitumen a wɔkora so 80-130 yuan/ton; sika a wɔde sie nyinaa yɛ yuan 20-40/tɔn; pɛtro a wɔkora so 15-25 yuan/ton; carbon bosea a wonya fi mu yɛ 5-10 yuan/ton; baabi a wɔkwati sɛ wɔtow nneɛma gu 30-60 yuan/ton (prorated wɔ 60% RAP a wɔde ka ho); nsiesie kyinhyia ntrɛwmu 10-20 yuan / tɔn (afe afe bɛboro mfe 30 asetra kyinhyia). Sika a wɔkora so nyinaa wɔ tɔn biara mu: 160-285 yuan. Sɛ yɛde toto ɛka a wɔbɔ wɔ amanne kwan so ɔhyew afrafra a ɛyɛ bɛyɛ 400-500 yuan wɔ ton biara mu ho a, sikakorabea ratio no bɛyɛ 35-55%. Conservative akontabuo (a wɔde ade biara ase hye di dwuma): bɛyɛ yuan 160 a wɔkora so wɔ ton biara mu, sikakorabea ratio bɛyɛ 35%. Akontaabu a ɛyɛ anidaso (a wɔde ade biara atifi hye di dwuma): bɛyɛ yuan 285 a wɔkora so wɔ tɔn biara mu, sikakorabea ratio bɛyɛ 55%. Wɔ mfiridwuma ankasa mu no, esiane sikasɛm a ɛkɔ soro ne nsonsonoe a ɛwɔ tumi a wɔde di gua mu nti, sikakorabea a ɛkɔ akyiri no taa yɛ 25-40%. Saa kwan yi yɛ akontaabu a ɛyɛ katee a egyina ɛka ho nsɛm a efi adansi adwuma ankasa pii mu so.
Wɔ atetesɛm kwan a wɔfa so totɔ nneɛma a ne bo yɛ mmerɛw sen biara no ase no, adetɔfo taa de adansi ho ka a wɔbɔe mfiase nkutoo toto ho, na wobu wɔn ani gu nsonsonoe a ɛwɔ asetra mu ka (LCC) mu no so. Saa nhwehwɛmu kwan yi yɛ ɔhaw titire wɔ asphalt pavement nnwuma mu — ɛfiri sɛ option a ɛho ka sua koraa wɔ mfitiaseɛ (te sɛ 0% RAP hot mix) no taa nya nsiesie ho ka kɛseɛ wɔ mfeɛ 5-10 akyi. Sɛ wɔde asetra mu ka a wɔde di dwuma resusuw ho a, ɛsɛ sɛ wɔtew ɛka nyinaa so kodu bere a wɔtaa de toto ho. Sɛnea wɔpaw sika a wɔatew so no ho hia: dodow a sika a wɔatew so no kɔ soro no, dodow no ara na mprempren ɛka a wɔbɔ wɔ daakye ho no so tew, na dodow no ara na mfaso a ɛwɔ ɔkwan a wɔbɛfa so ayɛ nea ɛho ka sua no so. Wɔ mfiridwuma mu no, wɔtaa de asetra mu sika a wɔatew so a ɛyɛ 3-5% di dwuma. Wɔ saa sika a wɔatew so yi mu no, ɛwom sɛ mfitiaseɛ ka a wɔbɔ wɔ ɔkwan a wɔfa so de nneɛma a wɔsan de di dwuma no ho no boro nea wɔpaw no boɔ a ɛba fam koraa no so (titiriw ɛnam ɛka a wɔbɔ wɔ rejuvenator no ho a wɔde ka ho nti), ɛka a wɔkora so wɔ nsiesie ho wɔ mfeɛ 10-15 akyi no ma mprempren boɔ a ɛwɔ ɔkwan a wɔfa so de nneɛma a wɔsan de di dwuma no nyinaa so ba fam kɛseɛ sene ɔkwan a wɔtaa fa so no. Sɛ wɔresiesie nkrataa a wɔde bɛto gua a, ɛsɛ sɛ adetɔfo hwehwɛ pefee sɛ wɔn a wɔrebɔ ka no de asetra mu ɛka ho nhwehwɛmu ma sen sɛ wɔde nsɛm a wɔaka a edi kan no nkutoo bɛtoto ho.
Ka wo project scenario ne ahwehwɛdeɛ kyerɛ yɛn, na yɛbɛma ano aduru a ɛfata no ahyia na yɛde quote ama wɔ nnɔnhwereɛ 24 ntam.
Nya Quote a Wɔde Ma Kwa3-wɔ-1 asphalt rejuvenator (ɔhyew afrafra + nsakrae + regeneration), RAP content >=60% (maximum 100%), afrafra ɔhyew 120-140°C, ɔbrɛ nkwa >=85% foforo asphalt, ne nyinaa ka 25-40% a ɛba fam. Viscosity 280 mPa·s, flash point 231°C, density 0.96 g/cm3, ɛwɔ 25 kg anaa 1000 kg sankuo mu. Boa customized formulas on demand na fa batch testing amanneɛbɔ ma, a optional aguadi nsɛm a ɛyɛ EXW/FOB/CIF/DDP.
Sua asphalt regeneration agent a wɔpaw ne nsɛm a wɔafa aka ho ade →