Mu emulsified asphalt, pH mtengo umakhalanso ndi chikoka pamlingo wa demulsification. Musanayambe kuphunzira chikoka cha pH pa demulsification mlingo wa emulsified asphalt, njira demulsification anionic emulsified phula ndi cationic emulsified phula akufotokozedwa motero.

Cationic emulsified asphalt demulsification imadalira mtengo wabwino wa atomu ya nayitrogeni mu gulu la amine mu kapangidwe ka mankhwala a asphalt emulsifier kuti ikhale yogwirizana ndi chiwongola dzanja choyipa pagulu. Chifukwa chake, madzi omwe ali mu phula lopangidwa ndi emulsified amafinyidwa ndikuwotchedwa. The demulsification wa emulsified asphalt watha. Chifukwa kuyambitsidwa kwa pH-kusintha asidi kumayambitsa kuwonjezeka kwa mtengo wabwino, kumachepetsa kuphatikizika kwa mtengo wabwino womwe umayendetsedwa ndi emulsifier ya phula ndi kuphatikiza. Choncho, pH ya cationic emulsified asphalt idzakhudza mlingo wa demulsification.
Mlandu woipa wa anionic emulsifier wokha mu asphalt wa anionic emulsified ndi wosiyana kwambiri ndi mlandu woipa wa aggregate. The demulsification anionic emulsified asphalt amadalira kumamatira kwa asphalt palokha kuti aggregate kufinya madzi. Anionic asphalt emulsifiers nthawi zambiri amadalira maatomu okosijeni kukhala hydrophilic, ndipo maatomu okosijeni amapanga ma hydrogen zomangira ndi madzi, zomwe zimapangitsa kuti madzi asamayende bwino. Mphamvu ya haidrojeni yolumikizana imakulitsidwa pansi pamikhalidwe ya acidic ndikufooka pansi pamikhalidwe yamchere. Chifukwa chake, pH yokwera kwambiri, m'pamenenso kuchedwetsa kuchuluka kwa demulsification mu asphalt ya anionic emulsified.