Warshada bitumen ee la damiray waxay ka hortagtaa khasaaraha aan loo baahnayn ee shaqada
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Warshada bitumen ee la damiray waxay ka hortagtaa khasaaraha aan loo baahnayn ee shaqada
Waqtiga Siideynta:2023-11-29
Akhriso:
La wadaag:
Waxaa jira laba kanaal oo waaweyn oo wax ka beddelka ah oo loogu talagalay qalabka bitumen-ka emulsified: Habka isku dhafka dibadda iyo habka isku dhafka gudaha. Habka isku dhafka dibadda waa in marka hore la sameeyo geedka bitumen emulsified caadiga ah, ka dibna lagu daro wax ka beddelayaasha polymer cinjirka ah qalabka caadiga ah ee Shanxi emulsified bitumen, iyo qas iyo walaaq si aad u diyaariso. Emulsions-ka polymer caadi ahaan waa CR emulsions, emulsions SBR, iyo emulsions acrylic. Habka isku dhafka gudaha waa in marka hore la isku daro caag, caag iyo polymers kale iyo waxyaabo kale oo lagu daro bitumen midab leh oo kulul iyo qabow. Ka dib marka la isku daro oo la isku dheellitiro, iyo muujinta saameynta qaraabada ah ee u dhaxaysa polymer-ka iyo bitumen midabka qabow-isku-dhafka ah, bitumen-polymer-la beddelay ayaa la helaa. , ka dibna emulsion-ka bitumen ee la beddelay waxaa lagu habeeyey tignoolajiyada emulsification. polymerka sida caadiga ah loo isticmaalo habka isku dhafka gudaha waa SBS. Haddii walxaha bitumen-ka isku dhafka qabow la joojiyo saacad ka dib markaad walaaqdo, nadiifi dusha sare ee foosto walaaqaya, ku dar biyo nadiif ah, oo nadiifi hoobiye. Liis garee biyaha dambe, oo xusuusnow in aanay jirin wax ururin ah oo biyo ah oo ku jira baaldiga si looga hortago in warqadda daawada la beddelo, taasoo keenta in madasha iyo hababka kale ay u muuqdaan kuwo daxalaystay. Markaad isticmaalayso si waafaqsan tilmaamaha, waa inaad qaaddaa tallaabooyin fudud si aad uga fogaato khasaaraha aan loo baahnayn ee hawlgalka.
Warshada bitumen ee la damiray waxay ka hortagtaa khasaaraha aan loo baahnayn ee hawlgalka_2Warshada bitumen ee la damiray waxay ka hortagtaa khasaaraha aan loo baahnayn ee hawlgalka_2
Mabda'a hawlgalka ee qalabka bitumen emulsion:
Awoodda xiisadda dusha sare ee qalabka bitumen emulsion iyo biyuhu aad bay u kala duwan yihiin, mana aha kuwo midba midka kale ku dhufan heerkulka caadiga ah ama sarreeya. Marka warshadda bitumen-ka emulsion-ka la hoos geeyo qalabka mashiinka sida centrifugation degdeg ah, xiirid, iyo saameyn, qalabka bitumen emulsion wuxuu u kobcin doonaa qaybo leh cabbirka qayb ka mid ah 0.1 ~ 5 μm, waxaana lagu kala firdhiyaa meesha aysan jirin surfactant ( Emulsifier-stabilizer) Dhexdhexaadiyaha biyaha, sababtoo ah emulsifier-ga waxaa lagu dhejin karaa dusha sare ee Shanxi emulsified qabow-isku-dhafka midabada midabka leh ee meelaha go'an, xiisadda dhex-dhexaadka ah ee u dhexeysa biyaha iyo qashin-qashin-qabow-qabow ayaa hoos u dhacaya, si qabow- Qaybaha bitumen ee midabka leh ee isku dhafan waxay samayn karaan nidaam firdhisan oo deggan biyaha. , goobta qalabka bitumen emulsion waa emulsion saliid-in-biyaha ah. Nidaamka firidhsan ee noocan oo kale ah waa midab bunni ah, oo leh bitumen midab leh oo qabow-isku dhafan sida wejiga kala firdhiyey iyo biyaha sida wejiga joogtada ah, oo leh dareere wanaagsan heerkulka qolka. Rakibaadda qalabka bitumen-ka Emulsion macno ahaan, qalabka bitumen-ka emulsion waxa loo isticmaalaa in lagu "kala firdhiyo" qabow-qashin-qashin midab leh oo biyo ah, taas oo isku dubaridaysa dareeraha bitumen midabka qabow-isku-dhafan.

Geedka bitumen-ka la shubay ayaa kulul u dhalaalisa bitumen midab leh oo qabow-isku-dar ah, ka dibna waxay ku kala firdhisaa qaybo yar oo qabow oo isku dhafan oo midab leh oo isku dhafan oo ku shubaya dareeraha dareeraha ah ee ka kooban emulsifier iyada oo loo marayo mishiinka si ay u sameeyaan dareere qabow-isku dhafan oo midab leh. Hoobiyaha qalabka bitumen emulsified sibidhka loo isticmaalo qaab dhismeedka track ballastless ee sallaxa ah isticmaalaa warshad bitumen cationic emulsion. Si la isku duwo barti, adkaanta iyo tayada sibidhka hoobiye qalabka bitumen emulsified, polymers waxaa inta badan loo isticmaalaa in lagu beddelo bitumen ah.