Sinoroader Muab tshwj xeeb hauv kev tsim cov khoom siv asphalt sib xyaw cov khoom, asphalt ntawm cov khoom siv asphally, hloov cov khoom siv asphalt thiab lwm txoj kev siv tshuab thiab khoom siv. Nrog rau kev nce qib nroos tas li, kev siv cov khoom siv asphally thiab emulsified asphalt cov khoom siv tau maj nrawm. Raws li cov kws tshaj lij kev lag luam ntawm cov khoom siv khoom siv khoom siv, peb siv cov thev naus laus zis thiab kev ua haujlwm tau ntau yam thiab ua kom zoo dua txhim kho kev ua haujlwm tau zoo.

Txhawm rau tiv thaiv kev cais tawm uas yuav tshwm sim nyob rau hauv kev hloov asphalt, cov txheej txheem asphalt uas asphalt cov khoom siv asphalt Cov sib xyaw ua kua uas muaj cov lus asphalt thiab hloov kho cov neeg aspifier hla dhau ntawm ib lub zeb colloid nrog grooves. Nyob rau hauv qhov kev txiav txim ntawm cov kev khiav ceev ceev sib hloov, ua kom cov qauv molecules thiab rov qab ua ke rau hauv lub network, tsis yog muab faib ua ke thiab faib rau hauv lub network, uas txhim kho lub zog ntawm lub Sib tov sib tov thiab txhim kho cov neeg qaug zog tsis kam.