Na ikuri ni simede mamada | Na vakailesilesi ni Foaming cecere ni cakacaka me baleta na simede ni sela
Cpalasitika ena simede e vakaibalebaletaka e dua na admixture ka rawa ni vakalailaitaka na levu ni wai e vakayagataki me baleta na veiwaki ka vakalevutaka na kaukauwa ni simede ena ruku ni ituvaki ni workability ni simede e tudei ka sega ni mudu na levu ni simede ..
The effect of concrete plasticizer on fresh concrete is mainly manifested in the following aspects:
Cpalasitika ena simede revurevu
Na iwalewale ni plasticizer na kena revurevu e baleta taumada na adsorption ni softener mai na veitiki ni simede kei na kena veiwaseyaki na veitiki ni simede mai na wai-vakalailaitaka na vakailesilesi .. After the water reducing agent is added to the concrete, it will be separated into macromolecular anions and metal cations (me vakataki Na . +, Ca 2+). Macromolecular anions exhibiting vigorous surface activity are adsorbed on the surface of cement particles, causing the cement particles to be negatively charged, kei na veitiki ni simede era sa veiwaseyaki ena vuku ni repulsion ni isau vata ga .. Ena gauna vata oqori ., baleta na palasitika e hydrophilic kei na itutu ni adsorption e dua na iyaloyalo vakasisila wavolita na veitiki ni simede, e rawa talega ni vakataotaka na duavata ni simede (itataqomaki ni vanua), sa vakakina na veitiki ni simede kei na ikarua ni veitiki ni coacervated era sa veiwaseyaki ka sereki .. Na wai kei na cagi e tiko ena flocculent aggregates e rawa ni vakalailaitaka na wai ..
2. Na kena revurevu ni palasitika
Ni oti na kena veiwaki na wai-vakalailaitaka na veiwaki ena simede ., na fluidity e rawa ni vakalevutaki vakalevu ka sega ni veisau na wai-simede ratio ., ka vakatokai me palasitikataki ni simede. Me ikuri ni kena revurevu ni adsorption kei na veivakasavasavataki ., na dina ni palasitika e tiko talega na kena revurevu ni kena suasua kei na kena revurevu ni lubricating. Ena vuku ni vica na cakacaka oqo ni wai vakalailaitaka na vakailesilesi ., me vaka ga ni vakayagataki e dua na wai lailai ., na simede e rawa ni veiwaki vata vakarawarawa, and the workability of the freshly brewed concrete is significantly improved.
3. Na kena revurevu ni veivakalawataki
The charged ions dissociated in the cement-water system can be adsorbed on the surface of the cement particles to increase the zeta potential, so the stabilization time of the system is longer. Ena gauna vata oqori ., e dua na anion vakaoqo adsorbing membrane kei na iyaloyalo ni wai e buli mai na isoqosoqo ni veiwekani ni haidrojini ena vakataotaka talega na veitaratara ena maliwa ni veitiki ni simede kei na wai ., vakalailaitaka na kena revurevu ni wai, ka vakakina e rawa ni vakaberaberataka na ituvatuva ..
• Na iwalewale ni kena vakalailaitaki na wai .
water-reducing admixtures is a typical surfactant. Me baleta e dua na wai vakalailaitaka na vakailesilesi ., na kena isema ni molecule e oka kina e rua na iwasewase .: e dua na ilawalawa polar kei na dua na ilawalawa sega ni polar .. Na ilawalawa vakaitamera e adsorbed ena dela ni simede . tikitiki, ka vakadeitaka vakalevu na veiwekani ni wai ., vakalailaitaka na molecules ni vakailesilesi ki na veitiki ni minerale ni veitiki ni simede. E vaka me tara na kemikali kei na iyaya vakayago ni taucoko ni wai reducer molecule se ion .. Ni sa vakalailaitaka na wai na molecule ni veiqaravi . (se atomi) era sa vakadodonutaki ena dela ni iwasewase ni minerale ni simede, na ilawalawa sega ni polar era rai ki tautuba me ra bulia e dua na iyaloyalo ni hydrophobic, sa vakaleqai kina na kena rerevaki na wai. Ena gauna vata oqori ., ilawalawa sega ni polar talega e tara na veiwekani ni simede na tikitiki kei na adsorption rawa ni ilawalawa polar ..
Cie-Jaina.org sa ikoya na iliuliu ni foam simede additives vakarautaka na simede foaming vakailesilesi ., palasitika,foam simede kaukauwa vakatorocaketaki me baleta na simede mamada, Buloko ni CLC. Kevaka o vakasaqara tiko na . palasitika, yalovinaka vakila na galala mo veitaratara kei keda.