1. Sib xyaw ua ke
Qhov zoo tshaj plaws: Ib nrab kev sib hloov ceev pab kom txaus shear thiab cua hauv cov chav sib xyaw. Qhov no tso cai asphalt binder, agregates, thiab cov quav sib ntxiv, tsis txhob sib txawv ntawm cov chaw mos, tsis txhob sib txawv "(tsis sib thooj) lossis cov neeg tsis sib thooj.
Tsawg heev: Tsis txaus ntseeg stirring kev siv ua rau cov khoom siv tsis zoo. Aggregates thiab asphalt tuaj yeem cais cov khaubncaws sab nraud povtseg ua ke, ua rau muaj kev faib tawm tsis ncaj. Piv txwv li, coarse aggregates yuav nyob hauv qab, thaum asphalt concentrates nyob rau saum npoo, txo cov sib tov sib xyaw kom ruaj khov.
Kev kub dhau heev: Kev loj heev dhau los tuaj yeem ua rau "dhau -} sib xyaw." Asphalt berer yuav yog sheared ntau dhau, rhuav cov yeeb yaj kiab asphalt, lossis cov hmoov av assal) yuav clump, tsim agglomerates uas cuam tshuam kev sib tsoo.
2. Segration muaj kev pheej hmoo
High - Ceev -} inducation: Kev hloov ntau dhau los tsim tsim kom muaj zog centrifugal quab yuam, ua rau cov ntaub ntawv nrog cov sib txawv sib cais. Coarse aggregates (siab dua) tau yooj yim pov rau hauv chav av, thaum cov khoom sib zog (piv txwv li, zoo nkauj xuab zeb, asphalt) nyob hauv plawv. Qhov no cuam tshuam cov sib tov cov homogeneity, ua rau tsis sib xws thaum kev tsim kho thaum muaj kev phom sij thaum ntxov (piv txwv li, rutting, tawg).
Tsawg - Ceev -} inducation: Tsis txaus sib xyaw ua tsis tiav cov khoom siv inertia, tso cai coarse aggregates los hais txog kev sib cais, ua rau muaj kev sib cav sib ceg hauv qab, nplua rau saum).
3. Asphalt bindering kev ncaj ncees
Kev cuam tshuam rau asphalt (asphal zaj duab xis): Asphalt Cov Lus Qhia Ib qho yeeb yaj kiab tiv thaiv ntawm cov chaw sib sau ua ke, uas yog qhov tseem ceeb rau cov sib xyaw kom sib xyaw thiab kav ntev.
Kev kub dhau heev: Mob siab yuav ua rau cov yeeb yaj kiab aspertalt aspertalt, txo nws lub peev xwm mus rau kev sib raug zoo nrog kev sib sau ua ke. Qhov no tsis muaj zog ntawm cov dej tsis kam thiab nkees ua kom tsis kam, ua rau txoj kev sib tsoo los tsoo (asphalt tev los ntawm agning) raws li kev tsheb khiav thiab ib puag ncig.
Tsawg heev: Txheej txheej tsis tiav vim tsis muaj kev sib cuag tsis txaus ntawm asphalt thiab aggregates yoojyim "liab qab" agoning surfaces, tsis zoo adhesion.
4. Sib tov kev ua tau zoo thiab siv hluav taws xob
Qhov zoo tshaj plaws: Cov nyiaj sib xyaw ua ke zoo thiab lub sijhawm. Nws ua tiav cov kev sib xyaw ua tiav hauv lub sijhawm luv tshaj plaws, txhim kho ntau dua kev ua tau zoo (piv txwv li tons ib teev) thiab txo lub zog pov tseg los ntawm kev sib xyaw ntev.
Tsawg heev: Yuav tsum muaj kev sib xyaw ua ke ntev dua kom mus txog kev sib xyaw ua ke, nce kev nce tsheb ntau lawm thiab kev siv hluav taws xob (piv txwv li kev ua haujlwm ntev ntawm cov khoom siv hluav taws xob). Ib qho ntxiv, txuas ntxiv yuav ua rau muaj kev kub ntxhov heev hauv kub {}}} making sib tov, cuam tshuam rau kev ua haujlwm.
Kev kub dhau heev: Tseem ceeb nce lub zog thauj khoom thiab kev siv zog tau siv. Nws tseem yuav ua kom nrawm rau ntawm kev sib xyaw ua ke, cov hnab yas, thiab lwm yam vim muaj kev sib txhuam nrog kev sib txhuam nrog kev sib sau ua ke, nce kev txij nkawm.
5. Haum rau cov hom sib xyaw
Sib txawv asphalt sib tov (piv txwv li, kub- sib tov sib xyaw asphalt [HMA], sov}), sov}), sov}} kev sib xyaw asphaltures)
Rau kev hloov asphalt tov (muaj cov polymers zoo li sbs), ib qho kev ceev yog xav tau kom ntseeg tau tias muaj kev sib cais ntawm cov hloov kho lawv mus rau qhov tsis muaj txiaj ntsig.
Txog sov - mix tov Asphalt (qis dua qhov kev kub me), qis dua rau cov khoom siv qeeb qeeb thiab kom muaj kev sib xyaw.