Kuti mulowemo odalirika komanso mwachangu mukamagwiritsa ntchito, emulsion ya phula imangokhala phula losungunuka. Amagwiritsidwa ntchito kwambiri pazinthu zosiyanasiyana m'mafakitale omanga. Kuchiza pamwamba kumachitidwa pofuna kuonetsetsa kuti mbali yakunja ya njirayo kapena yapamsewu imakhala yotetezeka kumadzi kapena chinyezi. Imakana kutsetsereka ndikuteteza misewu yayikulu. Ntchitoyi imakhudzidwa ndi zinthu zophatikizana, kusasinthika kwa emulsion, komanso kutentha.

Kodi Bitumen Emulsion imapangidwa bwanji?
Bitumen emulsion imapangidwa m'njira ziwiri zosavuta. Madzi amayamba kuphatikizidwa ndi emulsifying agent ndi mankhwala ena. Kenako, mphero yachitsulo imagwiritsidwa ntchito kuphatikiza madzi, emulsifier, ndi phula. Malingana ndi mapeto a ntchito ya phula emulsion, kuchuluka kwa phula kumawonjezeredwa kusakaniza. Pamene emulsifier ikupangidwa ngati chinthu chofunika kwambiri, ingagwiritsidwe ntchito pakati pa 60-70%.

Kuchuluka kwa phula komwe kumawonjezeredwa kusakaniza kuli pakati pa 40% ndi 70%. Mphero ya colloidal imalekanitsa phula kukhala tinthu ting'onoting'ono. Wapakati kukula kwa dontho ndi pafupifupi 2 microns. Koma madontho amayesa kukhazikika ndikulumikizana wina ndi mnzake. Emulsifier, motero, imapanga zokutira pamwamba pamadzi kuzungulira phula lililonse la phula lomwe, kumbali inayo, limathandizira kuti madonthowo asatalikirane. Zosakaniza zomwe zimachokera ku mphero ya colloidal zimakonzedwa ndikugwiritsidwa ntchito motsatira malangizo ndipo kenako zimasungidwa m'matangi osungira.

Mitundu ya Bitumen:
Emulsion ya phula imagawidwa m'magulu awiri:
Kutengera nthawi yokhazikitsa
Kutengera mtengo wapamtunda

Kutengera Nthawi Yokhazikitsa
Ngati emulsions wa phula ndi anawonjezera kuti aggregates, madzi chamunthuyo, ndi zosungunulira amachotsedwa. Ndiye phula limayenda pamwamba pa tsinde, limagwira ntchito ngati chomangira ndipo limadzilimbitsa pang'onopang'ono. Njirayi imagawidwa m'magulu atatu otsatirawa, kutengera liwiro lomwe madzi amatuluka nthunzi komanso tinthu tating'onoting'ono timabalalika m'madzi:
Rapid Setting Emulsion (RS)
Emulsion Yapakatikati (MS)
Slow Setting Emulsion (SS)

Phula limatanthauza kuthyoka mosavuta monga emulsion ndi mtundu wokhazikika wa emulsion. Mtundu uwu wa emulsion umayika mosavuta ndikuchiritsa. Kamodzi atayikidwa pamagulu, ma emulsions apakati apakati samasweka mosayembekezereka. Komabe, pamene mitsuko ya mchereyo imaphatikizidwa ndi kusakaniza kwa emulsifier, kusweka kumayamba. Ma emulsions ocheperako amapangidwa mothandizidwa ndi mtundu wapadera wa emulsifier womwe umachepetsa kuyika. Ma emulsion awa ndi olimba kwambiri.

Kutengera Surface Charge
Ma emulsion a phula amagawidwa makamaka m'magulu atatu otsatirawa kutengera mtundu wamalipiro apamwamba:
Emulsion ya Bitumen ya Anionic
Emulsion ya Bitumen ya Cationic
Non-Ionic Bitumen Emulsion

Bitumen particles ndi electro-negatively mlandu ngati anionic phula emulsion, pamene mu nkhani ya cationic emulsions, bituminous particles ndi electro-positive. Masiku ano, emulsion ya cationic ya phula imagwiritsidwa ntchito nthawi zambiri. Kutengera kuchuluka kwa mchere wamagulu omwe amagwiritsidwa ntchito pomanga, ndikofunikira kusankha emulsion ya phula. The zikuchokera aggregates amakhala electro-negatively mlandu milandu silika wolemera aggregates. Choncho, emulsion ya cationic iyenera kuwonjezeredwa. Izi zimathandiza kufalitsa phula ndi kuliphatikiza ndi zophatikizira bwino kwambiri. Pamayankho amadzimadzi, ma surfactants omwe si a ionic samakopa ma ion. Kusungunuka kumatengera kukhalapo kwa mamolekyu a polar. Kugwiritsa ntchito ma nonionic surfactants monga emulsifier, ngakhale osati m'madzi okha, koma mu gawo la phula, monga tafotokozera pamwambapa, ndizosangalatsa kwambiri chifukwa zimagwirizana ndi ma ion surfactants onse.

Palibe emulsion yamtundu uliwonse yokwanira pa ntchito iliyonse; zimatengera mtundu wa acidic kapena woyambira wa aggregate. Kutengera kutentha kwa mpweya, kuthamanga kwa mphepo ndi kukula kwa emulsion, nthawi yoyika ikhoza kukhala yosiyana. Mphamvu zosungirako ndizochepa. Magulu omwe ali pamwambawa ndi kalozera wosankha zofananira ndi zomwe mukufuna.