Emulsion bitumen rau micro surfacing yog cov khoom siv khi rau micro surfacing tsim. Nws cov yam ntxwv yog tias nws yuav tsum tau ua kom tau raws li lub sijhawm sib xyaw nrog lub pob zeb thiab lub sijhawm qhib rau kev khiav tsheb tom qab kev paving tiav. Txhawm rau muab nws yooj yim, nws ntsib ob lub sijhawm teeb meem. Lub sijhawm sib tov yuav tsum txaus, thiab qhib kev khiav tsheb yuav tsum ceev, yog li ntawd.
Cia peb tham txog emulsion bitumen dua. Emulsion bitumen yog cov roj-hauv-dej bitumen emulsion. Nws yog ib tug uniformly viscous kua nyob rau hauv chav tsev kub. Nws tuaj yeem siv tau txias thiab tsis xav tau cua sov. Nws yog kev txuag hluav taws xob thiab ib puag ncig tus phooj ywg. Emulsion bitumen muab faib ua peb hom raws li qhov sib txawv bitumen emulsifiers siv nyob rau hauv ntau lawm: qeeb cracking, nruab nrab cracking, thiab ceev nrooj. Cov emulsified bitumen siv nyob rau hauv micro-surfacing tsim yog qeeb cracking thiab ceev ceev cationic emulsion bitumen. Hom emulsion bitumen no yog npaj siv qeeb cracking thiab ceev ceev bitumen emulsifier thiab ntxiv polymer modifiers. Nws tuaj yeem ua tiav lub sijhawm sib xyaw txaus thiab kev teeb tsa ceev. Qhov adhesion ntawm cations thiab pob zeb yog qhov zoo, yog li xaiv hom cationic.

Kev sib tsoo qeeb thiab ceev ceev emulsion bitumen yog siv los tiv thaiv kev txij nkawm. Ntawd yog, nws yog siv thaum lub hauv paus txheej yog qhov qub tab sis cov txheej txheej saum npoo puas, xws li txoj kev nto yog du, tawg, rutted, thiab lwm yam.
Txoj kev tsim kho: Txau ib txheej ntawm cov nplaum ua ntej, tom qab ntawd siv micro-surfacing / slurry seal paver rau pave. Thaum lub cheeb tsam me me, phau ntawv sib xyaw thiab paving ntawm emulsion bitumen thiab pob zeb tuaj yeem siv tau. Leveling yuav tsum tau tom qab paving. Nws tuaj yeem siv tau ib txwm tom qab tos qhov chaw kom qhuav. Muaj feem xyuam rau: nyias txheej tsim nyob rau hauv 1 cm. Yog hais tias lub thickness xav tau ntau tshaj 1 cm, nws yuav tsum tau pav nyob rau hauv cov khaubncaws sab nraud povtseg. Tom qab ib txheej qhuav, txheej tom ntej tuaj yeem ua pa. Yog tias muaj teeb meem thaum lub sij hawm tsim kho, koj tuaj yeem tiv tauj cov neeg siv khoom rau kev sab laj!
Slow-crack thiab ceev-ceev emulsion bitumen yog cov khoom siv cementing rau slurry sealing thiab micro-surface paving. Hais lus nruj me ntsis, nyob rau hauv kev tsim kho ntawm kev hloov kho slurry foob thiab micro-surfacing, qeeb tawg thiab ceev-ceev emulsion bitumen yuav tsum tau ntxiv nrog ib tug modifier, uas yog, hloov emulsion bitumen.