Njengezinto eziyimfuneko zokuhombisa ekuhombiseni, i-putty powder yinto esisiseko somgangatho wodonga kunye nokulungiswa, kwaye isiseko esihle seminye imihlobiso.Umphezulu wodonga unokugcinwa kakuhle kwaye ufanayo ngokusebenzisa i-putty powder, ukwenzela ukuba iiprojekthi zokuhombisa ezizayo ziqhutywe ngcono.Umgubo weputty wenziwe ngokubanzi ngezinto ezisisiseko, isihluzi, amanzi kunye nezongezo.Yeyiphi eyona misebenzi iphambili ye-latex powder enokuphinda ihlakazwe njengesona songezo siphambili kwiputty powder:
① Isiphumo kudaka oluxutywe ngokutsha;
A. Ukuphucula ukwakheka;
B. Ukugcinwa kwamanzi okongeziweyo ukuphucula ukuhanjiswa kwamanzi;
C. Ukwandisa ukusebenza;
D. Kuphephe ukuqhekeka kwangethuba.
② Impembelelo kudaka oluqinileyo:
A. Nciphisa i-modulus elastic yodaka kwaye ukwandise ukuhambelana komgangatho wesiseko;
B. Ukwandisa ukuguquguquka kunye nokuxhathisa ukuqhekeka;
C. Ukuphucula ukuxhathisa kokuphalazwa komgubo;
D. Hydrophobic okanye ukunciphisa ukufunxwa kwamanzi;
E. Ukwandisa ukunamathela kwisiseko somgangatho.
Udaka olungenamanzi lubhekiselele kudaka lwesamente oluneempawu ezintle zokungangeni kwamanzi kunye nokunganyanzeki emva kokuba lukhuni ngokulungelelanisa umlinganiselo wodaka kunye nokwamkela inkqubo ethile yokwakha.Udaka olungangenwa ngamanzi lunokumelana nemozulu elungileyo, ukuqina, ukungagungqi, ukubumbana, ukuncamathela okuphezulu kunye nefuthe elinamandla lokungangeni manzi kunye ne-anti-corrosion.Yeyiphi eyona misebenzi iphambili ye-latex powder enokuphinda ihlakazwe njengesona songezo siphambili kudaka olungenamanzi:
① Isiphumo kudaka oluxutywe ngokutsha:
A. Ukuphucula ulwakhiwo
B. Ukwandisa ukugcinwa kwamanzi kunye nokuphucula ukuhanjiswa kwesamente;
② Impembelelo kudaka oluqinileyo:
A. Nciphisa i-modulus elastic yodaka kwaye uphucule ukuhambelana komgangatho wesiseko;
B. Ukwandisa ukuguquguquka, ukuxhathisa ukuqhekeka okanye ukukwazi ukubopha ibhulorho;
C. Ukuphucula ukuxinana kodaka;
D. I-Hydrophobic;
E. Yandisa umanyano.
Ixesha lokuposa: Mar-16-2023