Ọtụtụ akụrụngwa ga-enwe ụfọdụ obere nsogbu mgbe eji ya. Iji rụọ ọrụ ya nke ọma, ọrụ nyocha kwa ụbọchị bụ ihe a na-apụghị izere ezere. Ka anyị leba anya n'ihe akụrụngwa bitumen gbanwere (nhazi: asphaltene na resin) kwesịrị ime na ndụ kwa ụbọchị. Kedu ihe bụ ọrụ nyocha?
Anyị kwesịrị ịdị na-enyocha emulsifier gbanwetụrụ nke osisi bitumen a gbanwere. Ọ bụrụ na ejiri emulsifier mee ihe ruo ogologo oge na ọdịiche dị n'etiti emulsified bitumen colloid Mill ga-ebuwanye ibu, mgbe ahụ anyị kwesịrị ịgbanwe ya n'oge a iji nọgide na-emepụta. Nke a bụ ntụnyere dị mfe ajụjụ: Osisi bitumen gbanwetụrụ bụ ịgbakwunye admixtures mpụga (modifiers) dị ka rọba, resin, polymer molecular dị elu, ntụ ntụ rọba nke ọma ma ọ bụ ihe ndị ọzọ, ma ọ bụ mee ihe dị ka nhazi oxidation dị nro nke bitumen iji mee bitumen Ma ọ bụ ihe nkedo bitumen mere site na imeziwanye arụmọrụ nke ngwakọta bitumen.

Nyochaa nsogbu nke ndị mgbanwe. N'ozuzu, ọnụọgụ mgbanwe ndị agbakwunyere ga-adịrịrị ebe. Mgbe ị na-agbakwụnye, a ghaghị imezi uru pH dị ka mma nke mmiri eji. Okwu a chọrọ ndị ọrụ nyocha. Ihe kpatara ya nwekwara ike kpatara nsogbu na bitumen gbanwetụrụ (nhazi: asphaltene na resin) osisi n'onwe ya, n'ihi na bitumen nkịtị nwekwara ọkwa dị iche iche. Mgbe ị na-emepụta bitumen emezigharịrị, ekwesịrị itinye nlebara anya mara ma akụrụngwa eji eme ihe bụ nke achọrọ. Nkịtị bitumen na ekwe nkwa mma.
Bitumen gbanwere site na akụrụngwa bitumen gbanwere, n'otu aka ahụ, na-ejigide ma ọ bụ na-eme ka ịdị n'otu, plasticity na fluidity nke bitumen mbụ, n'aka nke ọzọ, ọ na-eme ka nkwụsi ike nke okpomọkụ (nkọwa: kwụsiri ike ma kwụsie ike, ọ dịghị mgbanwe) nke bitumen na Elasticity, nke nwere ike imezu ebumnuche nke imeziwanye arụmọrụ nke okporo ụzọ bitumen.
Na mgbakwunye, akụrụngwa bitumen gbanwetụrụ (nhazi: asphaltene na resin) na-anabata usoro mmepụta sayensị na-aga n'ihu ma nwee ike na-aga n'ihu na-emepụta bitumen polymer gbanwechara ruo tọn 30 / awa. Ọ bụkwa igwe na-aga n'ihu na-aga n'ihu nke nwere nnukwu ikike mmepụta otu igwe. Ngwá ọrụ bitumen emezigharịrị mmekọ nwoke na nwanyị dabara adaba maka imepụta obere obere na ọkara dị iche iche nke akụrụngwa bitumen emulsified gbanwetụrụ. Ọ nwere ike izute mkpa dị iche iche ngwa ọnọdụ na-emepụta gbanwetụrụ bitumen osisi na elu ụzọ arụmọrụ na dịtụ kwụsiri ike (nkọwa: kwụsiri ike na kwụsie ike, ọ dịghị mgbanwe).