I-redispersible polymer powder (RDP) iyi-copolymer ye-vinyl acetate ne-ethylene, esetshenziswa kakhulu njenge-binder ezintweni zokwakha. Ithuthukisa amandla, ukuqina kanye nokunamathela kwemikhiqizo esekwe usimende ngokwenza ifilimu ezinzile ngesikhathi sokuqina. I-RDP iyimpushana emhlophe eyomile edinga ukuphinde ihlakazwe emanzini ngaphambi kokusetshenziswa. Izakhiwo kanye ne-viscosity ye-RDP yizinto ezibalulekile njengoba zithinta ikhwalithi yomkhiqizo wokugcina. Lesi sihloko sichaza ukusebenza kwe-RDP nezindlela zokuhlola i-viscosity ezingasiza abakhiqizi bathuthukise ikhwalithi yomkhiqizo futhi baqinisekise ukwaneliseka kwamakhasimende.
Indlela yokuhlola ukusebenza kwe-RDP
Indlela yokuhlola ukusebenza kwe-RDP yakhelwe ukuhlola amandla e-RDP okwenza ngcono ukusebenza kwemikhiqizo esekwe usimende. Inqubo yokuhlola imi kanje:
1. Ukulungiselela izinto ezibonakalayo
Lungiselela izinto ezilandelayo: i-RDP, usimende wasePortland, isihlabathi, amanzi, kanye ne-plasticizer. Hlanganisa usimende wePortland nesihlabathi ngesilinganiso se-1: 3 ukuthola ingxube eyomile. Lungiselela isixazululo ngokuxuba amanzi ne-plasticizer ngesilinganiso se-1: 1.
2. hlanganisa
Hlanganisa i-RDP namanzi ku-blender kuze kutholakale i-slurry e-homogeneous. Engeza i-slurry ekuhlanganiseni okomile bese uxuba imizuzu emi-2. Engeza isisombululo se-plasticizer samanzi bese uxuba imizuzu engu-5 eyengeziwe. Ingxube ewumphumela kufanele ibe nokuvumelana okuqinile, okukhilimu.
3. Faka isicelo
Usebenzisa i-trowel, yendlala ingxube ibe ugqinsi oluyi-2mm endaweni ehlanzekile, eyomile, eyisicaba. Sebenzisa i-roller ukuze ubushelelezi ubuso futhi ususe amabhamuza omoya. Vumela amasampula elaphe ekamelweni lokushisa izinsuku ezingu-28.
4. Ukuhlolwa kokusebenza
Amasampula aphulukisiwe ahlolelwa izici ezilandelayo:
- Amandla okucindezela: Amandla okucindezela akalwa kusetshenziswa umshini wokuhlola wendawo yonke. Amandla okucindezela kufanele abe phezulu kunesampula yokulawula ngaphandle kwe-RDP.
- I-Flexural Strength: Amandla e-flexural akalwa kusetshenziswa isivivinyo sokugoba samaphuzu amathathu. Amandla e-flexural kufanele abe phezulu kunesampula yokulawula ngaphandle kwe-RDP.
- Amandla Okunamathelayo: Amandla okunamathela akalwa kusetshenziswa ukuhlolwa kokudonsa. Amandla ebhondi kufanele abe phezulu kunesampula yokulawula ngaphandle kwe-RDP.
- Ukumelana namanzi: Amasampula eselashiwe acwiliswa emanzini amahora angama-24 futhi izakhiwo zahlolwa futhi. Ukusebenza kwayo akufanele kuthinteke kakhulu ngemva kokuxhumana namanzi.
Indlela yokuhlola ukusebenza kwe-RDP inganikeza idatha yenhloso kanye nenani lokusebenza ngempumelelo kwe-RDP ekwenzeni ngcono ukusebenza kwemikhiqizo esekwe usimende. Abakhiqizi bangasebenzisa le ndlela ukuze bathuthukise ukwakheka kwe-RDP futhi baqinisekise ikhwalithi yomkhiqizo engaguquki.
Indlela Yokuhlola I-RDP Viscosity
Indlela yokuhlola i-RDP viscosity yakhelwe ukuhlola ukuziphatha kokugeleza kwe-RDP emanzini. Inqubo yokuhlola imi kanje:
1. Ukulungiselela izinto ezibonakalayo
Lungiselela lezi zinsiza ezilandelayo: i-RDP, amanzi enziwe nge-deionized, i-viscometer, noketshezi lokulinganisa. Ibanga le-viscosity loketshezi lokulinganiswa kufanele lifane ne-viscosity elindelekile ye-RDP.
2. Ukulinganisa kwe-viscosity
Linganisa i-viscosity yoketshezi lokulinganisa nge-viscometer futhi urekhode inani. Hlanza i-viscometer bese ugcwalisa ngamanzi angcolile. Linganisa i-viscosity yamanzi bese ubhala inani. Faka inani elaziwayo le-RDP emanzini futhi ugovuze kancane kuze kutholakale ingxube efanayo. Vumela ingxube ihlale imizuzu emi-5 ukuze kuqedwe amabhamuza omoya. Linganisa i-viscosity yengxube usebenzisa i-viscometer futhi urekhode inani.
3. Bala
Bala i-viscosity ye-RDP emanzini usebenzisa ifomula elandelayo:
I-RDP Viscosity = (I-Viscosity Yengxube - I-Viscosity Yamanzi) / (I-Calibration Fluid Viscosity - Viscosity Yamanzi) x I-Calibration Fluid Viscosity
Indlela yokuhlola i-RDP viscosity inikeza inkomba yokuthi i-RDP iphinde ihlakazeke kalula kanjani emanzini. Ukuphakama kwe-viscosity, kunzima kakhulu ukuphinda kuphindwe kabusha, kuyilapho i-viscosity iphansi, i-redispersibility esheshayo futhi egcwele. Abakhiqizi bangasebenzisa le ndlela ukuze balungise ukwakheka kwe-RDP futhi baqinisekise ukuphinde kuhlakazeke kabusha.
Ekuphetheni
Izakhiwo ze-RDP nezindlela zokuhlola i-viscosity zingamathuluzi abalulekile okuhlola ikhwalithi yama-RDP nokuthuthukisa ukwakheka kwawo. Ngokusebenzisa lezi zindlela, abakhiqizi bangaqinisekisa ukuthi imikhiqizo yabo ye-RDP ihlangabezana nokusebenza okudingekayo kanye nezicaciso zokusebenziseka kalula, ngaleyo ndlela bandise ukwaneliseka nokwethembeka kwamakhasimende. Abakhiqizi bayelulekwa ukuthi balandele izinqubo zokuhlola ezisezingeni futhi basebenzise okokusebenza okulinganiselwe ukuze baqinisekise imiphumela enembile nethembekile. Njengoba ubuchwepheshe be-RDP buqhubeka buthuthuka, isidingo semikhiqizo ye-RDP esebenza kahle kakhulu nesebenziseka kalula kulindeleke ukuba sikhule ngokuzayo.
Isikhathi sokuthumela: Sep-04-2023