Ingabe Isitshalo Esiphathekayo Se-Asphalt Esixutshwe Kakhulu Singazinciphisa Ngempela Izindleko Zakho Zokugandaya Ngesigamu?

Kungani Abakhiqizi Beshintsha Beya Esitsheni Esishisayo Esixutshwe Nge-Asphalt—Futhi Nawe Ungase Ushintshe

Njalo entwasahlobo, iminyango yemigwaqo emikhulu kanye nezindawo zokupaka ezizimele zibhekene nekhanda elifanayo: izindleko zokuthutha ziyaqhubeka zikhuphuka kuyilapho amafasitela omsebenzi eqhubeka encipha. Ngena esitshalweni se-asphalt esithambile esixutshwe kahle, iyunithi ekwazi ukudonswa, ezakha ngokwayo ethembisa ukuxuba okusha zingakapheli imizuzu engama-20 ukufika. Kuzwakala kunesibindi, akunjalo? Kodwa idatha yesifundazwe ye-DOT evela eTexas naseGeorgia ibonisa ukuthi osonkontileka banciphisa isaphulelo esingu-18-24% sezinto zokwakha ngemva kwesizini yokuqala. Imfihlo akuyona ubuthakathi; iwukususa uhambo lokuya nokubuya lwamamayela angu-60 oluya emshinini wokomisa oseduze. Amaloli ambalwa emgwaqweni, udizili ongachithwanga kakhulu, futhi—nansi into ebaluleke kakhulu—akukho kuxuba “okuthambile” ebusuku okumele kufudunyezwe kabusha ekuseni ngakusasa.

Ubuchwepheshe Busebenza Kanjani Uma Uhamba?

Cabanga nge-trailer engamamitha angu-40 enezibini ezintathu ezigoqekayo: i-virgin aggregate, i-RAP, kanye nothuli lwe-baghouse. I-feeder yemvamisa eguquguqukayo ilinganisa ukusakaza ngakunye kusikrini esinezitezi ezintathu, bese iphonsa izingxenyana ezilinganiswe kahle ku-drum ye-counter-flow engamamitha angu-6. I-burner ikhuphuka iye ku-1,600 °F ngaphansi kwemizuzu emithathu ngenxa ye-atomizer enomfutho ophezulu. Ngenkathi i-drum ijikeleza, i-PLC ilandelela umswakama ozungezile futhi ilungisa ngokuzenzakalelayo i-injection ye-bitumen. I-shebang yonke inikwe amandla yi-genset engu-350-kW ehlangabezana ne-Tier-4 Final—ngakho-ke usengakwazi ukubhida emisebenzini yaseCalifornia ngaphandle kokuncibilika kwamaphepha. Ngamafuphi, uthola ukunemba kwesitshalo esingashintshi ngonyawo lohambo lwe-carnival.

Linda, Kuthiwani Ngezimvume ze-EPA?

Ah, umbuzo obiza izigidi zamaRandi. Iningi lamamodeli ezitshalo ze-asphalt ezishisayo eziphathwayo athunyelwa ne- EPA “Imvume Yomoya Ojwayelekile Yemithombo Emincane” epakishwe kusengaphambili. Ukuhumusha: uma umkhiqizo wakho uhlala ngaphansi kwamathani ayi-100,000 ngonyaka futhi ushisa igesi yepayipi noma idizili ene-sulfur ephansi kakhulu, empeleni usesendleleni esheshayo. Ezinye izifunda zisafuna isaziso somphakathi sezinsuku ezingama-30, kodwa lokho kudlula isaga sezinyanga ezingu-18 esidingekayo esikhungweni esingama-tph angu-400. Icebiso lochwepheshe: gcina ikhophi yesiqinisekiso sokukhishwa komoya somkhiqizi ebhokisini lamagilavu; abahloli bathanda ukubona “≤0.04 lb PM-10 ngethani” ngombala ogqamile i-Arial.

Ukunciphisa Izinombolo: I-ROI Ngesizini Eyodwa

Ake sibale ngokushesha ngephrojekthi yokulungisa kabusha umgwaqo wesifunda engamamayela amabili:

• Isilinganiso sokuthutha (isitshalo esingashintshi): amamayela angu-42 → $11.30 ngethani ekuthuthweni kwamaloli.
• Umthamo odingekayo: amathani ayi-18,000.
• Ukushiswa okwengeziwe kokulibaziseka kwempelasonto: 3%.

Izindleko ezengeziwe: ≈ $230,000. Isitshalo se-asphalt esiphathekayo esinobukhulu obuphakathi siqasha u-$35,000 ngenyanga, okuhlanganisa nokulinganisa. Ngisho noma usigcina izinyanga ezintathu, usazoba ngu-$125,000 emnyama—ngaphambi kokuba ubale amabhonasi okusebenza ebusuku noma izinhlawulo zokuzifudumeza. O, futhi ngishilo ukuthi ungayithuthela esifundeni esilandelayo ngaphansi kwamahora ayisishiyagalombili? Yebo, lokho kuyashintsha .

Ukuqothulwa Kwezinganekwane: "Okuphathekayo Kusho Ikhwalithi Ephansi"

Izinduna zesikole sakudala zifunga ukuthi udinga umbhoshongo ongaguquki ongu-150-ft ukuze ufinyelele ku-96% we-Marshall density. Ukuhlolwa kweqiniso: abaxubi bezigubhu banamuhla bafinyelela ku-98% ngaphakathi kokuphambuka kwe-bitumen okungu-±0.3%, okuqinisekiswa ngama-nuclear gauges asebhodini. Icebo ngama-paddles anejubane eliguquguqukayo anweba isikhathi sokuhlala ngemizuzwana eyi-12—ende ngokwanele ukuze kufakwe ungqimba oluphelele, amafushane ngokwanele ukuvimbela intuthu eluhlaza okwesibhakabhaka. Uma kukhona, ingxube isha ngoba ayikho i-silo hold yemizuzu engama-45. Ngakho-ke ngesikhathi esizayo othile ekutshela ukuthi i-portable ilingana ne-“lukewarm tar,” mcele ukuba afike osukwini lwakho olulandelayo lwesampula ye-core. I-Spoiler: ama-cores azokhuluma kakhulu kunezinhlamba zakho.

Imininingwane Emi-3 Okungafanele Uyikhohlwe

1. Imodi yokushisa: Izishisi ezisebenzisa uphethiloli ophindwe kabili zonga u-$1.10 ngethani uma ushintshela ku-LNG phakathi nesikhathi sokushintsha.
2. Indlu ye-Baghouse delta-P:

Umkhawulo we-wc ongu-5.5 inches ugcina izikhwama ziphila amahora okusebenza angu-3,000, hhayi angu-1,800.

3. Ubukhulu be-slat yokuhudula: Ama-liners e-chromium-carbide angu-⅜-intshi anciphisa isikhathi sokungasebenzi ngo-40%.

Kusukela Ezindleleni Zasedolobheni Kuya Ezisekelweni Zasepulazini Lomoya: Amacala Okusetshenziswa Kwangempela

NgoJulayi odlule, inkampani yaseColorado yayidinga amathani ayi-11,000 e-asphalt ene-modulus ephezulu yomgwaqo wokufinyelela epulazini lomoya okhuphuke ngamaphesenti ayi-11%. Isitshalo esisodwa se-asphalt esixutshwe kahle esishisayo sakhiqiza ingxube ku-340 °F, amamayela angama-20 ukusuka entanjeni kagesi eseduze. Abasebenzi bagandaye ama-2,300 ft ngeshifti ngayinye, banqoba isizini yemvula, futhi basenesikhathi sokuhlola izindawo zokukhiqiza utshwala zasendaweni—ngoba, he, ibhalansi yomsebenzi nempilo, bantu. Izindaba ezifanayo ziyavela emigwaqweni yokugawula imithi yase-Ontario kanye nama-pads ensimu kawoyela eTexas. Ingxoxo efanayo? Amashejuli aqinile, izindawo ezikude, kanye nokungabekezeleli nhlobo amalunga abandayo.

Ukuthenga vs. Ukuqasha: Yimuphi Umzila Okufanele Uwuthathe?

Uma inani lakho lonyaka lidlula amathani angu-80,000 futhi uneminyaka okungenani emihlanu yokuphelelwa yisikhathi, ukuthenga amanani aphansi ngethani ngalinye kubiza ngaphansi kuka-$2.80. Amanani ezimali anobungane njengamanje—cabanga ukuthi i-APR engu-5.9% ezinyangeni ezingu-72. Ukuqasha, ngakolunye uhlangothi, kulondoloza imali yokusebenza futhi kukuvumela ukuthi uvivinye ubuchwepheshe obusha bokushisa njalo ngesizini. Amadili e-hybrid—ukuqasha ukuze ube nawo ngokuthenga okungu-30%—nawo ayathandwa. Noma ngabe iyiphi indlela oyikhethayo, gcizelela ukuqeqeshwa kokuqala kwefektri; ikhosi yesitifiketi sezinsuku ezimbili ingavimbela isimangalo sokuphazamiseka kokushisa esingu-$40,000.

Iziphazamiso Ezivamile Zokulungisa—Nendlela Yokuzigwema

Yebo, incwajana yokumaketha ithi “ama-idlers angenawo amafutha,” kodwa kusazodingeka ugcobe ama-drum thrust rollers njalo emahoreni angu-250. Yeqa kanye, bese isigubhu sinyakaza njengengane encane e-espresso. Iphutha elibi kakhulu? Ukungayinaki i-DEF filter ye-genset; i-SCR evalekile ingalimaza sonke isitshalo, ikushiye ne-50 tph esikhundleni se-120 tph. Gcina isihlungi esingu-$28 ethoyilethi yezingxenye, usishintshe ngosuku lwemvula, futhi uzoba mnandi. Ngithembe, umphathi wephrojekthi yakho uzokubonga uma ishejuli ingangeni ngesonto elizayo.

Okubalulekile: Ukuhamba Kuyinzuzo

Kungakhathaliseki ukuthi ulungisa imigodi edolobheni noma uvuselela imigwaqo yesibili ezintini, isitshalo se-asphalt esithambile esixutshwe kahle sinciphisa imali echithwayo, sinciphise isikhathi, futhi sigcine ikhwalithi ihambisana. Ukushaqeka kwesitikha sokuqala kuyaphela lapho uqaphela ukuthi usanda kuthola imali yokufunda ekolishi yesemester ngesizini eyodwa. Ngakho-ke, ingabe umshini owodwa unganciphisa ngempela izindleko zakho zokugandaya ngesigamu? Izibalo—kanye namamayela—zithi yebo. Okusele nje ukuhlanganisa, ukuguqula iswishi, bese ubuka ukonga kuphuma ngegolide elimnyama elinomusi.