Slurry sealing siv cov cuab yeej siv tshuab los sib xyaw kom tsim nyog graded emulsified asphalt, ntxhib thiab nplua aggregates, dej, fillers (cement, txiv qaub, ya tshauv, pob zeb hmoov, thiab lwm yam) thiab additives raws li tus qauv tsim piv rau hauv slurry sib tov thiab uniformly nws yog paved. nyob rau hauv thawj txoj kev nto thiab yog ruaj khov ua ke nrog cov thawj txoj kev nto los ntawm cov txheej txheem ntawm txheej, demulsification, dej sib cais, evaporation thiab solidification los tsim ib tug ntom, muaj zog, hnav-resistant thiab txoj kev nto foob, uas zoo heev txhim kho kev ua tau zoo ntawm lub txoj kev nto.
Slurry sealing thev naus laus zis tau tshwm sim hauv Tebchaws Yelemees thaum xyoo 1940s. Hauv Tebchaws Meskas, daim ntawv thov slurry sealant suav txog 60% ntawm lub teb chaws txoj kev taug kev dub, thiab nws txoj kev siv tau nthuav dav. Nws ua lub luag haujlwm tiv thaiv thiab kho cov kab mob xws li kev laus, kab nrib pleb, smoothness, looseness, thiab potholes nyob rau hauv cov tshiab thiab qub pavements, ua rau cov waterproof, anti-skid, du thiab hnav-resistant zog ntawm txoj kev nto yog sai heev.
Slurry sealing kuj yog ib qho kev tiv thaiv kev tsim kho kev tsim kho rau saum npoo ntawm txoj kev pavement. Qub asphalt pavements feem ntau muaj cov kab nrib pleb thiab cov poholes. Thaum lub saum npoo yog hnav, emulsified asphalt slurry sealing sib tov yog kis ntawm pavement rau hauv ib txheej nyias thiab tso cai rau kom khov sai li sai tau, kom cov asphalt qhob pavement tuaj yeem tswj tau. Nws yog kev saib xyuas thiab kho nrog lub hom phiaj ntawm kev rov ua haujlwm ntawm txoj kev nto thiab tiv thaiv kev puas tsuaj ntxiv.

Kev tawg qeeb lossis nruab nrab tawg sib xyaw emulsified asphalt siv rau hauv slurry seal txheej yuav tsum muaj cov ntsiab lus asphalt lossis polymer asphalt yog li 60%, thiab qhov tsawg kawg nkaus yuav tsum tsis pub tsawg dua 55%. Feem ntau, anionic emulsified asphalt tsis zoo adhesion rau cov ntaub ntawv ntxhia thiab siv sijhawm ntev los tsim. Nws feem ntau yog siv rau alkaline aggregates, xws li limestone. Cationic emulsified asphalt tau zoo adhesion rau acidic aggregates thiab feem ntau yog siv nyob rau hauv acidic aggregates, xws li basalt, granite, thiab lwm yam.
Kev xaiv ntawm asphalt emulsifier, ib qho ntawm cov khoom xyaw hauv emulsified asphalt, yog qhov tseem ceeb tshwj xeeb. Ib qho zoo asphalt emulsifier tuaj yeem tsis tsuas yog ua kom zoo ntawm kev tsim kho tab sis kuj txuag nqi. Thaum xaiv, koj tuaj yeem xa mus rau ntau qhov ntsuas ntawm asphalt emulsifiers thiab cov lus qhia rau kev siv cov khoom sib xws. Peb lub tuam txhab tsim ntau yam ntau hom asphalt emulsifiers. Yog tias koj muaj lus nug, thov sab laj nrog peb cov neeg siv khoom.
Lub emulsified asphalt slurry foob tuaj yeem siv rau kev tiv thaiv kev saib xyuas ntawm Chav II thiab hauv qab txoj kev loj, thiab tseem tsim nyog rau cov txheej txheem qis, hnav txheej lossis txheej tiv thaiv ntawm txoj kev loj tshiab. Tam sim no nws tseem siv rau txoj kev loj.
Classification ntawm slurry seals:
Raws li mineral gradation
Raws li qhov sib txawv ntawm cov khoom siv ntxhia, cov slurry sealing txheej tuaj yeem muab faib ua cov txheej txheej zoo sealing, nruab nrab sealing txheej thiab coarse sealing txheej, sawv cev los ntawm ES-1, ES-2 thiab ES-3 feem.
Raws li qhov ceev ntawm kev qhib rau kev khiav tsheb
Raws li qhov ceev ntawm kev qhib tsheb khiav ceev [1], slurry seals tuaj yeem muab faib ua ceev ceev qhib tsheb slurry seals thiab qeeb qhib tsheb slurry seals.
Muab faib raws li seb puas muaj cov hloov pauv polymer ntxiv
Raws li seb polymer hloov pauv ntxiv, slurry sealing txheej tuaj yeem muab faib ua slurry sealing txheej thiab hloov slurry sealing txheej.
Muab faib raws li cov khoom sib txawv ntawm emulsified asphalt
Slurry sealing txheej yog muab faib ua slurry sealing txheej txheem thiab hloov slurry sealing txheej raws li cov khoom sib txawv ntawm emulsified asphalt.
Muab faib raws li thickness
Raws li qhov sib txawv thickness, nws muab faib ua zoo sealing txheej (I txheej), nruab nrab sealing txheej (II hom), coarse sealing txheej (III hom) thiab tuab sealing txheej (IV hom).