Niaj hnub no, asphalt pavement tau dav siv hauv kev tsim kho vim nws muaj ntau yam zoo. Tam sim no, peb tsuas yog siv kub bitumen thiab emulsified bitumen nyob rau hauv kev tsim kho ntawm asphalt pavement. Kub bitumen siv ntau lub zog cua sov, tshwj xeeb tshaj yog cov xuab zeb thiab pob zeb ntau ntau uas yuav tsum tau ua kom sov. Kev tsim kho ib puag ncig rau cov neeg ua haujlwm tsis zoo thiab kev siv zog ua haujlwm siab. Thaum siv emulsified bitumen rau kev tsim kho, cua sov tsis tas yuav tsum tau txau thiab sib tov rau paving ntawm chav tsev kub, thiab pavement ntawm ntau yam qauv tuaj yeem ua paving. Ntxiv mus, emulsified bitumen tuaj yeem ntws los ntawm nws tus kheej ntawm chav tsev kub, thiab tuaj yeem ua rau hauv emulsified bitumen ntawm ntau qhov sib txawv raws li xav tau. Nws yog ib qho yooj yim kom ua tiav qhov yuav tsum tau asphalt zaj duab xis thickness los ntawm pouring los yog permeating txheej, uas tsis tuaj yeem ua tiav los ntawm kub bitumen. Nrog rau kev txhim kho me ntsis ntawm txoj kev sib txuas thiab kev txhim kho cov kev xav tau ntawm cov qib qis, kev siv cov emulsified bitumen yuav loj dua thiab loj dua; Nrog rau kev txhim kho ntawm ib puag ncig kev paub thiab qhov tsis txaus ntawm lub zog, qhov kev faib ua feem ntawm emulsified bitumen nyob rau hauv asphalt yuav ua siab dua thiab siab dua. Qhov kev siv ntawm kev siv kuj yuav dav thiab dav, thiab qhov zoo yuav ua tau zoo thiab zoo dua. Emulsified bitumen muaj cov yam ntxwv ntawm tsis muaj tshuaj lom, tsis muaj ntxhiab, tsis muaj nplaim taws, ziab sai thiab muaj zog sib txuas. Nws tuaj yeem tsis tsuas yog txhim kho txoj kev zoo, nthuav dav ntawm kev siv asphalt, txuas ntxiv lub caij tsim kho, txo cov pa phem ib puag ncig thiab txhim kho kev tsim kho, tab sis kuj txuag lub zog thiab cov khoom siv.
Emulsified bitumen feem ntau yog tsim los ntawm bitumen, emulsifier, stabilizer thiab dej.
1. Bitumen yog cov khoom tseem ceeb ntawm emulsified bitumen. Qhov zoo ntawm asphalt yog ncaj qha ntsig txog kev ua haujlwm ntawm emulsified asphalt.
2. Emulsifier yog cov khoom siv tseem ceeb hauv kev tsim cov emulsified asphalt, uas txiav txim siab qhov zoo ntawm emulsified asphalt.
3. Lub stabilizer tuaj yeem ua rau emulsified asphalt muaj kev ruaj ntseg zoo thaum lub sijhawm tsim kho.
4. Nws yog feem ntau yuav tsum tau hais tias cov dej zoo yuav tsum tsis txhob nyuaj heev thiab yuav tsum tsis txhob muaj lwm yam impurities. Tus nqi pH ntawm cov dej thiab calcium thiab magnesium plasma muaj kev cuam tshuam rau emulsification.
Nyob ntawm cov ntaub ntawv thiab emulsifiers siv, kev ua haujlwm thiab kev siv emulsified asphalt kuj txawv. Feem ntau siv yog: zoo tib yam emulsified asphalt, SBS hloov emulsified asphalt, SBR hloov emulsified asphalt, ntxiv qeeb cracking emulsified asphalt, siab permeability emulsified asphalt, siab concentration High viscosity emulsified asphalt. Hauv kev tsim kho thiab kev saib xyuas ntawm asphalt pavement, haum emulsified asphalt tuaj yeem xaiv raws li txoj kev thiab cov khoom.