Ta Yaya Maganin Shuke-shuken RAP Mai Sake Amfani da Su Zafi na Asphalt Zai Iya Rage Farashi Ba Tare da Rage Inganci Ba?

Shin kun taɓa mamakin dalilin da yasa wasu masu ginin hanya ke ci gaba da samun nasara yayin da farashin kayan aiki ke ci gaba da hauhawa? Sirrin galibi yana cikin hanyoyin samar da injinan sarrafa kwalta masu zafi na rap - wata fasaha da ke dawo da har zuwa kashi 60% na tsohon kwalta kuma tana rage kuɗin kayan masarufi rabi. Bari mu bincika dabarun da ke mayar da guntun filin ajiye motoci zuwa riba. (Kuma eh, za mu kuma zubar da wake a kan gyara ɗaya da zai iya ceton ku ƙarin $0.40 a kowace tan.)

Menene Ainihin RAP, kuma Me Yasa Yake Da Muhimmanci Ga Samar da HMA Na Zamani?

Reclaimed Asphalt Pavement (RAP) ba wai kawai "nicking" bane; abu ne da za a iya ajiyewa a banki. Kowace tan da kuka sake amfani da ita yana nufin rage tan ɗaya na virgin aggregate da binder da kuke buƙatar siya. A shekarar 2023, liquid AC binder ya kai matsakaicin $650 a kowace tan mai gajeren tan a faɗin Tekun Tekun Amurka. Haɗa 30% RAP a cikin cakuda ku kuma kuna kashe kusan $200 akan kowace tan na kwalta da aka gama. Wannan lissafin ne har ma da akawu zai biya ku da yawa.

Ta Yaya Maganin Shuke-shuken Asphalt na Zamani na Sake Amfani da RAP?

Wataƙila kun ga tsoffin na'urorin busar da ganga masu layi ɗaya waɗanda ke ƙona RAP kamar burodin jiya. Mafi kyawun tsire-tsire na yau suna amfani da jaket ɗin canja wurin zafi da kuma fitar da danshi daga tururi . Fassara: RAP yana dumama a hankali, don haka ragowar bitumen ba ya "tsufa" ko ya yi rauni. Sakamakon? Haɗakar da ta haɗu da Superpave volumetrics ba tare da wani abin mamaki ba. Wasu OEMs ma suna ƙara pyrometers na infrared waɗanda ke karanta yanayin zafi a ainihin lokaci, suna gyara abincin RAP ta atomatik don kiyaye shi cikin ±3 °C na abin da aka nufa. Yana da kyau a yi shi da kyau, ko?

Muhimman Haɓaka Kayan Aiki Waɗanda Suke Biyan Kansu Cikin Watanni 18

• Na'urorin jigilar ja-da-rage masu canzawa : Yana rage ƙarfin dawaki da kashi 25% kuma yana rage lalacewar RAP.
• Masu raba venturi mai tururi mai ƙarfi : Ana cire kashi 80% na danshi kafin RAP ya buga ganga, wanda hakan ke adana man girki.
• Injin pugmill mai shaft biyu tare da riƙewa na daƙiƙa 15 : Yana kawar da hayaƙi mai shuɗi kuma yana sa maƙwabta su yi farin ciki.

Za ku iya wuce 40% na RAP ba tare da lalata aikin rage zafin jiki ba?

Amsar a takaice: eh, amma dole ne ku yi wasan kemistri. Mai ɗaurewa mai laushi (PG 58-28) tare da 0.3% Sasobit ko wani ƙarin kayan ɗumi yana rage tasirin zafin jiki mai ƙarfi da mataki ɗaya kawai yayin da yake dawo da matakin zafi mai ƙarancin zafi da matakai biyu. Matukin jirgi na 2022 na Illinois DOT akan I-72 ya yi amfani da 45% RAP tare da wannan girke-girke na ainihin kuma har yanzu ya wuce TSR (rabo mai ƙarfi) a 85%. Don haka, babu wani ƙarin uzuri "ba za mu iya wuce 25% ba", mutane.

Yaya Game da Fitar da Iska? Shin Masu Kula da Wutar Lantarki Za Su Rufe Ni?

Iyakar EPA MACT ga PM2.5 shine 0.04 gr/dscf. Shuka mai jakar baya da busasshen allurar lemun tsami yana sauka cikin sauƙi a 0.01 gr/dscf koda lokacin da abun cikin RAP ya kai 50%. Shawarar ƙwararru: gudanar da gwajin tarin kwata-kwata a lokacin hunturu - yawan iska mai sanyi na iya karkatar da karatun, kuma ba kwa son a rufe ku da rashin haske kafin lokacin shimfidawa.

Boyayyen ROI: Tarar Jaka azaman Filler Ma'adinai

Maimakon cika waɗannan tarar ƙura, sake mayar da kashi 1–2% cikin haɗin. Cikakke ne kyauta wanda ke haɓaka VMA da kashi 0.5% kuma yana ba ku damar aske ƙurar dutse mai launin ruwan kasa. Wata masana'antar injinan ...

Yadda Za a Tabbatar da Shuke-shuken ku a Nan Gaba don Samun Rage ...

Fara da ganga mai ganga biyu wanda ke ware RAP daga yankin wuta kai tsaye. Ƙara wurin shiga RAP mai canzawa - motsa shi kusa ko nesa da mai ƙonawa dangane da danshi. A ƙarshe, ƙayyade mai ciyar da kayan aiki tare da ra'ayoyin gadoji don tsarin sarrafa shuka ya iya gyara canjin tan ta atomatik. Waɗannan motsi uku suna saita ku don duk wani takamaiman takamaiman da DOT zai jefa muku shekaru goma masu zuwa.

Nazarin Lamarin: Babbar Hanyar Jihar 38-Mile a Colorado

Aikin yana buƙatar t 110 000 na SMA 12.5-mm. An ƙayyade ƙimar RAP a kashi 30%, amma ɗan kwangila ya yi tayin kashi 40% ta amfani da tsarin da ke sama. Tanadin kuɗi: $1.9 M. Abin da ya fi kyau? Aikin shimfidar ƙasa bayan yanayi biyu na daskarewa da narke ya sami maki 92 akan PCR (ƙimar yanayin shimfidar ƙasa) idan aka kwatanta da 88 don sashin sarrafawa tare da cakuda mara kyau. Har ma injiniyan shimfidar ƙasa na jihar ya yarda, "Ba mu ga hakan zai faru ba."

An Fake da Tatsuniyoyi Masu Yawa

Tatsuniya: "Haɗin haɗakar manyan-raps koyaushe yana lalacewa."

Gaskiya: Rutting ya dogara ne akan tsarin jimilla, ba kashi na RAP ba. Yi amfani da rabon CA/FA mai kyau kusa da 0.45 kuma za ku yi lafiya.

Tatsuniya: "RAP ya ƙunshi hydrocarbons da ba a san su ba waɗanda ke wari."

Eh, tabbas, idan kuna amfani da na'urar ƙona wutar ku mai cike da mai da zafinta a arewacin 340 °C. Ajiye zafin jikin tari a ƙasa da 160 °C kuma wari yana raguwa zuwa matakin BBQ na unguwa.

Jerin Abubuwan da Za A Yi Sauri Kafin A Gyara

1. Tabbatar cewa silos ɗinku zai iya ɗaukar ƙarin 10% na kayan aiki (RAP ya fi laushi).
2. Haɓaka ganga; gangunan RAP suna da nauyi mai yawa.
3. Yi magana da DOT ɗinka da wuri—wasu jihohi har yanzu suna iyakance RAP zuwa kashi 25% na SMA, amma ba da izinin yafewa idan ka nuna bayanan dakin gwaje-gwaje.

Shin kuna shirye ku matse kowace dalar da ta rage daga maganin rap ɗinku na cakuda asfalt mai zafi? Fara da na'urar auna danshi, ƙara VFD akan abincin RAP, kuma ku kalli yadda tsarin tanadinku yake aiki. Kuma, idan kuna buƙatar zurfafa zurfafa cikin gyaran burner ko ƙarin allurai, aiko mana da sako - kyakkyawan shimfidawa!