[1]. EVA hloov bitumen EVA muaj kev sib raug zoo nrog bitumen thiab tuaj yeem yaj thiab tawg mus rau hauv kub bitumen yam tsis muaj colloid zeb los yog high-shear mechanical processing, ua rau nws yooj yim rau siv.
Nyob rau hauv xyoo tas los no, cov phiaj xwm bitumen pavement hauv Africa tau siv ntau zaus, yog li cov neeg sib tw hauv tsev tau ceeb toom kom ua tib zoo saib.
[2]. High viscosity, siab elasticity thiab siab toughness hloov bitumen. Kev ntsuas bitumen viscosity thiab toughness yog ntau haum rau SBR hloov bitumen, tab sis thaum siv rau siab viscoelastic hloov bitumen, demoulding feem ntau tshwm sim, ua rau qhov kev xeem tsis yooj yim sua. Raws li qhov no, nws raug nquahu kom siv lub tshuab ntsuas cov khoom siv thoob ntiaj teb los ua qhov ntsuas viscosity thiab toughness ntawm cov viscoelastic hloov bitumen, sau cov kev ntxhov siab-strain nkhaus, thiab siv txoj kev sib koom ua ke kom yooj yim xam cov txiaj ntsig kev xeem. 3. Cov ntsiab lus siab roj hmab sib xyaw hloov bitumen Nrog rau cov pa roj carbon ntau thiab cov qauv ntawm cov hom phiaj ntawm cov pa roj carbon monoxide, kev txuag hluav taws xob thiab kev txo qis emission yog qhov tseem ceeb. Kev lag luam log tsheb tau ntsib teeb meem ntawm "kev tsim khoom ntau thiab cov khoom pov tseg" txij li thaum nws tsim thiab tsim khoom. Cov log tsheb xav tau kev siv ncaj qha lossis tsis ncaj ntawm cov peev txheej ntuj thiab lub zog los ntawm kev tsim khoom mus pov tseg, ua rau muaj cov pa roj carbon dioxide ntau.
Lub ntsiab ntawm cov log tsheb yog cov pa roj carbon, thiab txawm tias cov log tsheb uas tau muab pov tseg muaj ntau dua 80% cov ntsiab lus carbon. Cov log tsheb khib nyiab tuaj yeem rov qab tau ntau cov ntaub ntawv thiab lub zog, kho cov pa roj carbon rau hauv cov khoom, thiab ua tiav lub hom phiaj ntawm kev txuag hluav taws xob thiab txo qis emission. Cov log tsheb khib nyiab yog cov khoom siv polymer elastic uas nyuaj rau degrade. Lawv muaj siab elasticity thiab toughness thiab yuav luag tsis muaj lub cev lossis tshuaj hloov pauv tshwm sim hauv qhov kub ntawm -50C txog 150C. Yog li ntawd, yog tias lawv raug tso cai rau degrade ib txwm nyob rau hauv cov av, lawv yuav Tsis muaj kev cuam tshuam rau kev loj hlob ntawm cov nroj tsuag, cov txheej txheem yuav siv li 500 xyoo. Ntau lub log tsheb khib nyiab tau piled li arbitrarily thiab nyob ib tug loj npaum li cas ntawm av, tiv thaiv kev siv ntawm cov av zoo. Tsis tas li ntawd, kev ywg dej mus sij hawm ntev hauv cov log tsheb yuav ua rau yoov tshaj cum thiab kis kab mob, ua rau muaj kev phom sij rau tib neeg kev noj qab haus huv.
Tom qab mechanically crushing cov log tsheb khib nyiab rau hauv cov hmoov roj hmab, cov ntsiab lus roj hmab sib txuas hloov kho bitumen (tom qab no hu ua roj hmab bitumen) yog tsim rau txoj kev paving, paub txog kev siv cov peev txheej, txhim kho txoj kev ua tau zoo, txhim kho txoj kev ua neej zoo, thiab txo cov nqi tsheb. . Kev Tsim Kho Kev Lag Luam.
[3]. Vim li cas nws yog "cov ntsiab lus siab roj hmab hloov kho bitumen"?
Tsawg kub tawg tsis kam
Cov roj hmab hauv cov roj hmab khib nyiab roj hmab hmoov muaj qhov dav dav ntawm qhov kub thiab txias ua haujlwm, yog li cov khoom sib xyaw ntawm bitumen tseem tuaj yeem tswj tau qhov kev ua haujlwm elastic ntawm qhov kub thiab txias, ncua qhov tshwm sim ntawm qhov kub thiab txias, thiab ruaj khov rau cov roj hmab roj hmab hauv cov hmoov av. bitumen, uas ua rau kom muaj viscosity ntawm bitumen, uas ua rau kom lub softening point thiab zoo heev txhim kho cov high-kub stability ntawm bitumen thiab mix. Kev tiv thaiv kev sib tsoo thiab suab nrov-txo cov pob txha-qib bitumen sib tov muaj qhov loj ntawm qhov tob thiab kev ua haujlwm zoo los tiv thaiv kev ua haujlwm ntawm txoj kev.
Roj hmab bitumen tuaj yeem txo cov suab nrov ntawm 3 mus rau 8 decibels thiab muaj kev ua haujlwm zoo. Cov khib nyiab roj hmab hmoov muaj cov tshuaj tua kab mob antioxidants, cov cua sov stabilizers, cov khoom tiv thaiv lub teeb thiab cov pa roj carbon dub. Ntxiv bitumen tuaj yeem ncua kev laus ntawm bitumen thiab txhim kho qhov zoo ntawm qhov sib tov. Lub durability thiab kev pab cuam ntawm kev sib raug zoo ntawm 10,000 tons ntawm roj hmab bitumen yuav tsum tau noj tsawg kawg yog 50,000 khib nyiab log tsheb, txuag 2,000 rau 5,000 tons ntawm bitumen. Cov khoom pov tseg cov khoom siv rov ua dua tshiab yog siab, lub zog txuag thiab kev tiv thaiv ib puag ncig yog qhov pom tseeb, tus nqi qis, kev nplij siab yog qhov zoo, thiab elastomer pavement txawv ntawm lwm cov pavements. Piv nrog rau kev ruaj ntseg thiab kev nplij siab, nws zoo dua.
Cov pa roj carbon dub tuaj yeem khaws cov xim dub ntawm txoj kev ntog mus ntev, nrog kev sib txawv siab nrog cov cim thiab qhov pom kev zoo. 5. Bitumen pob zeb hloov bitumen roj tau dhau ntau pua lab xyoo ntawm sedimentation hloov nyob rau hauv lub pob zeb crevices. Nws raug hloov pauv hauv tshav kub, siab, oxidation, thiab yaj. Bitumen zoo li cov khoom tsim los ntawm kev sib koom ua ke ntawm kev tshaj tawm thiab cov kab mob. Nws yog ib hom natural bitumen. Lwm cov natural bitumens muaj xws li pas dej bitumen, submarine bitumen, thiab lwm yam.
Tshuaj muaj pes tsawg leeg: Qhov hnyav molecular ntawm asphaltene nyob rau hauv pob zeb bitumen ranges ntawm ob peb txhiab mus rau kaum txhiab. Cov tshuaj muaj pes tsawg leeg ntawm asphaltene yog 81.7% carbon, 7.5% hydrogen, 2.3% oxygen, 1.95% nitrogen, 4.4% sulfur, 1.1% aluminium, thiab 0.18% silicon. thiab lwm yam hlau 0.87%. Ntawm lawv, cov ntsiab lus ntawm carbon, hydrogen, oxygen, nitrogen, thiab sulfur yog qhov siab. Yuav luag txhua macromolecule ntawm asphaltene muaj cov polar functional pawg ntawm cov ntsiab lus saum toj no, uas ua rau nws tsim muaj zog adsorption quab yuam rau saum npoo ntawm pob zeb. Generation thiab keeb kwm: Pob zeb bitumen yog tsim nyob rau hauv cov kab nrib pleb ntawm pob zeb. Qhov dav ntawm cov kab nrib pleb yog nqaim heev, tsuas yog kaum ntawm centimeters mus rau ob peb meters, thiab qhov tob tuaj yeem ncav cuag ntau tshaj li ntau pua meters.
1. Buton pob zeb bitumen (BRA): tsim nyob rau hauv Buton Island (BUTON), Sulawesi Province, Indonesia, South Pacific
2. North American pob zeb bitumen: UINTAITE (US lub npe lag luam Gilsonite) North American hard bitumen nyob rau hauv Uintah Basin nyob rau sab hnub tuaj ntawm Judea, sab qaum teb Tebchaws Meskas.
3. Iranian pob zeb bitumen: Qingdao muaj cov khoom muag mus ntev.
[4]. Sichuan Qingchuan Pob Zeb Bitumen: Tshawb nrhiav hauv Qingchuan County, Sichuan Province hauv 2003, nws tau pov thawj reserves ntawm ntau tshaj 1.4 lab tons thiab yav tom ntej reserves ntawm ntau tshaj 30 lab tons. belongs rau Shandong Expressway.5. Lub pob zeb bitumen mine nrhiav tau los ntawm 137th Regiment ntawm 7th Agricultural Division ntawm Xinjiang Production thiab Construction Corps hauv Urho, Karamay, Xinjiang xyoo 2001 yog qhov ntxov tshaj plaws natural bitumen mine nrhiav tau nyob rau hauv Suav teb. Kev siv thiab hom:
1. Muab tso ncaj qha rau hauv lub tog raj kheej sib xyaw ntawm bitumen mixing chaw nres tsheb.
2. High modulus tus neeg saib xyuas txoj kev, thawj zaug zom cov hmoov, thiab tom qab ntawd ntxiv cov matrix bitumen ua tus hloov kho.
3. Roj hmab hmoov compounding
4. Sib cais cov roj xuab zeb thiab sib sau cov ntsiab lus asphaltene. 5. Txuas nrog qhov chaw sib tov kom ntxiv cov tswv yim tshiab hauv online:
1. Siv rau cov txheej txheem yooj yim;
2. Siv rau kev paving ncaj qha ntawm txoj kev nyob deb nroog;
3. Sib tov nrog cov khoom siv rov ua dua tshiab (RAP) rau thermal regeneration;
4. Siv bitumen activator los muab cov kua bitumen thiab txias sib tov rau saum npoo.
5. High modulus asphalt
6. Cast asphalt pob zeb