Dab tsi yog hloov asphalt thiab nws cov kev faib tawm?
Sijhawm tso tawm:2024-06-20
Hloov kho asphalt yog ntxiv cov khoom siv sab nraud (modifiers) xws li roj hmab, resin, siab molecular polymers, finely av roj hmab hmoov los yog lwm yam fillers, los yog siv cov kev ntsuas xws li me me oxidation processing ntawm cov asphalt kom cov asphalt los yog asphalt sib tov. asphalt binder tuaj yeem txhim kho.
Muaj ob txoj hauv kev rau kev hloov kho asphalt. Ib qho yog los hloov cov tshuaj muaj pes tsawg leeg ntawm asphalt, thiab lwm qhov yog ua kom cov hloov kho sib npaug sib npaug hauv asphalt los ua ib qho kev sib txuas ntawm cov qauv.
Rubber thiab thermoplastic elastomer hloov asphalt
Xws li: roj hmab hloov kho asphalt, SBS hloov asphalt (feem ntau siv dav), styrene-butadiene roj hmab hloov kho asphalt, chloroprene roj hmab hloov asphalt, butyl roj hmab hloov asphalt, butyl roj hmab hloov asphalt, pov tseg roj hmab thiab rov tsim kho roj hmab hloov asphalt, lwm yam roj hmab hloov asphalt asphalt (xws li ethylene propylene roj hmab, nitrile roj hmab, thiab lwm yam). Yas thiab hluavtaws cob hloov asphalt
Xws li: polyethylene hloov asphalt, ethylene-vinyl acetate polymer hloov asphalt, polystyrene hloov asphalt, coumarin resin hloov kho asphalt, epoxy resin hloov kho asphalt, α-olefin random polymer hloov asphalt.
Blended polymer hloov asphalt
Ob lossis ntau dua polymers ntxiv rau asphalt tib lub sijhawm los hloov kho asphalt. Ob lossis ntau cov polymers tau hais los ntawm no tuaj yeem yog ob lub polymers cais, lossis lawv tuaj yeem yog lub npe hu ua polymer alloy uas tau muab sib xyaw ua ntej los tsim cov polymer interpenetrating network.