Hloov Bitumen
Hloov kho bitumen yog asphalt binder ua los ntawm kev ntxiv additives (modifiers) xws li roj hmab, resin, polymer, natural bitumen, av roj hmab hmoov los yog lwm yam ntaub ntawv los txhim kho kev ua tau zoo ntawm bitumen los yog bitumen sib tov. Cov txheej txheem ntawm kev ua tiav cov hloov kho bitumen nyob rau hauv ib qho chaw ruaj khov rau cov khoom siv rau qhov chaw tsim kho. Qhov txiaj ntsig loj tshaj plaws ntawm kev hloov kho bitumen yog qhov yooj yim heev rau kev siv, piv nrog rau kev siv cov bitumen zoo tib yam, ntxiv rau qhov yuav tsum tau txhim kho qhov kub thiab txias, qhov seem ntawm qhov sib txawv tsis yog qhov me me. Tsis tas li ntawd, cov kev hloov kho asphalt kuj muaj qhov yooj yim thiab elasticity, tuaj yeem tiv thaiv kev tawg, txhim kho kev puas tsuaj thiab ua kom lub neej ntev, txo cov txij nkawm tom qab, txuag cov neeg siv sijhawm thiab cov nqi tu, tam sim no hloov txoj kev asphalt feem ntau yog siv rau tshav dav hlau khiav, pas dej ua ke lawj, chaw nres tsheb, chaw ua si, kev taug kev hnyav, kev sib tshuam thiab kev lem thiab lwm yam tshwj xeeb lub sijhawm pavement daim ntawv thov.
Sinoroader
hloov bitumen cogyog ib qho kev xaiv zoo tshaj plaws rau kev tsim cov roj hmab bitumen, uas yog cov khoom siv dav hauv kev tsim kho. Tswj los ntawm lub computer system, nws yog heev yooj yim-ua hauj lwm, txhim khu kev qha thiab meej. Qhov kev cog qoob loo ntawm bitumen no muaj feem xyuam rau kev ua haujlwm tas mus li thiab ua haujlwm tau zoo ntawm cov khoom lag luam asphalt. Lub bitumen nws tsim yog ntawm high-temperature stability, aging kuj, thiab siab durability. Nrog nws cov kev ua tau zoo tau ntsib ntau yam kev ua haujlwm, Hloov kho bitumen cog tau siv dav hauv kev tsim kho kev loj.