Izitsha zokuvikela ugesi zangaphandle kanye nezinhlelo zokuqeda (i-EIFS) zidlala indima ebalulekile ekuhlinzekeni ukuvikela ugesi, ukuvikela isimo sezulu kanye nobuhle bezakhiwo. I-Hydroxypropyl methylcellulose (HPMC) iyisengezo esivame ukusetshenziswa ezitshalweni ze-EIFS ngenxa yokuguquguquka kwayo, ukugcinwa kwamanzi kanye nekhono lokuthuthukisa ukusebenza kahle.
1. Isingeniso ku-EIFS mortar:
Udaka lwe-EIFS luyizinto ezihlanganisiwe ezisetshenziselwa ukuvikela nokuqeda izinhlelo zodonga lwangaphandle.
Ngokuvamile kuqukethe i-samente binder, ama-aggregates, imicu, izithasiselo kanye namanzi.
Udaka lwe-EIFS lungasetshenziswa njengesisekelo sokuhlanganisa amaphaneli okushisa kanye ne-topcoat ukuthuthukisa ubuhle kanye nokuvikela isimo sezulu.
2. I-Hydroxypropylmethylcellulose (HPMC):
I-HPMC iyi-ether ye-cellulose etholakala ku-cellulose ye-polymer yemvelo.
Isetshenziswa kabanzi ezintweni zokwakha ngenxa yezakhiwo zayo zokugcina amanzi, ukuqina kanye nokuthuthukisa ukusebenza.
Kuma-mortar e-EIFS, i-HPMC isebenza njengomuthi wokuguqula i-rheology, ithuthukisa ukunamathela, ukuhlangana kanye nokumelana nokuwa.
3. Izithako zefomula:
a. Isibophezeli esisekelwe kusimende:
I-Portland Cement: Inikeza amandla nokunamathela.
Usimende ohlanganisiwe (isb. usimende we-Portland limestone): Wandisa ukuqina futhi wehlisa ukunyathela kwekhabhoni.
b. Ukuhlanganiswa:
Isihlabathi: Ubuningi kanye nokuthungwa kwenhlanganisela encane.
Ama-aggregates alula (isb. i-perlite enwetshiwe): Thuthukisa izakhiwo zokuvikela ukushisa.
I-C. fiber:
I-fiberglass engamelani ne-alkali: Ithuthukisa amandla okunamathela kanye nokumelana nokuqhekeka.
d. Izithasiselo:
I-HPMC: ukugcinwa kwamanzi, ukusebenza kahle, kanye nokumelana nokuwa.
I-ejenti yokufaka umoya: Thuthukisa ukumelana nokuqandisa.
I-Retarder: Ilawula isikhathi sokusetha ezindaweni ezishisayo.
Ama-polymer Modifier: Athuthukisa ukuguquguquka nokuqina.
e. Amanzi: Abalulekile ekumunceni nasekusebenzeni kahle.
4. Izici ze-HPMC ku-mota we-EIFS:
a. Ukugcinwa Kwamanzi: I-HPMC imunca futhi igcine amanzi, iqinisekisa ukuthi amanzi ahlala isikhathi eside futhi ithuthukisa ukusebenza kahle.
b. Ukusebenza Kahle: I-HPMC inika ubumba olubushelelezi nolungaguquguquki, okwenza kube lula ukwakhiwa.
C. Ukungawohloki: I-HPMC isiza ukuvimbela ukuthi udaka lungawohloki noma luwe ezindaweni eziqondile, okuqinisekisa ukujiya okufanayo.
d. Ukunamathela: I-HPMC ithuthukisa ukunamathelana phakathi kodaka kanye ne-substrate, ikhuthaza ukunamathelana kwesikhathi eside kanye nokuqina.
e. Ukumelana nokuqhekeka: I-HPMC ithuthukisa ukuguquguquka kanye namandla okubopha kwe-mortar futhi inciphisa ingozi yokuqhekeka.
5. Inqubo yokuxuba:
a. Indlela yokumanzisa ngaphambi kokusebenzisa:
Manzisa i-HPMC kusengaphambili esitsheni esihlanzekile esino-70-80% wamanzi axubile aphelele.
Hlanganisa kahle izithako ezomile (usimende, i-aggregate, imicu) ku-mixer.
Faka kancane kancane isixazululo se-HPMC esimanziswe ngaphambilini ngenkathi uvuselela kuze kube yilapho kufinyelelwa ukuqina okufunayo.
Lungisa okuqukethwe kwamanzi njengoba kudingeka ukuze kufezwe ukusebenza kahle okufiselekayo.
b. Indlela yokuxuba eyomile:
Ingxube eyomile ye-HPMC enezithako ezomile (usimende, ama-aggregates, imicu) ku-mixer.
Engeza amanzi kancane kancane ngenkathi uvuselela kuze kube yilapho kufinyelelwa ukuqina okufunayo.
Hlanganisa kahle ukuqinisekisa ukusatshalaliswa ngokulinganayo kwe-HPMC nezinye izithako.
C. Ukuhlolwa Kokuhambisana: Ukuhlolwa kokuhambisana ne-HPMC nezinye izithasiselo ukuqinisekisa ukusebenzisana nokusebenza okufanele.
6. Ubuchwepheshe bokusebenzisa:
a. Ukulungiswa kwe-substrate: Qiniseka ukuthi i-substrate ihlanzekile, yomile futhi ayinazo izinto ezingcolisayo.
b. Ukusetshenziswa kwe-primer:
Faka i-EIFS Mortar Primer ku-substrate usebenzisa i-trowel noma umshini wokufutha.
Qiniseka ukuthi ukujiya kuyalingana futhi ukumbozwa kuhle, ikakhulukazi emaphethelweni nasemakhoneni.
Faka ibhodi lokuvikela ukungcola edakeni elimanzi bese uvumela isikhathi esanele sokupholisa.
C. Isicelo se-Topcoat:
Faka i-EIFS mortar topcoat phezu kwe-primer elungisiwe usebenzisa i-trowel noma imishini yokufafaza.
Ukuthungwa noma ukuqeda izindawo njengoba kufunwa, uqaphela ukufeza ukufana nobuhle.
Lungisa i-topcoat ngokwezincomo zomenzi ukuze uyivikele ezimweni zezulu ezinzima.
7. Ukulawulwa kwekhwalithi nokuhlolwa:
a. Ukungaguquguquki: Qapha ukuhambisana kodaka kuyo yonke inqubo yokuxuba nokusebenzisa ukuqinisekisa ukufana.
b. Ukunamathela: Ukuhlolwa kokunamathela kwenziwa ukuhlola amandla okubopha phakathi kodaka kanye ne-substrate.
C. Ukusebenza Kahle: Hlola ukusebenza kahle ngokuhlola ukwehla kwesakhiwo kanye nokubuka ngesikhathi sokwakha.
d. Ukuqina: Yenza ukuhlolwa kokuqina, okuhlanganisa imijikelezo yokuqandisa nokuncibilikisa kanye nokuvimbela amanzi, ukuze kuhlolwe ukusebenza kwesikhathi eside.
Ukusebenzisa i-HPMC ukwakha izimbotshana ze-EIFS kunikeza izinzuzo eziningi maqondana nokusebenza kahle, ukunamathela, ukumelana nokuwa kanye nokuqina. Ngokuqonda izakhiwo ze-HPMC nokulandela amasu okuxuba nokusebenzisa afanele, osonkontileka bangafinyelela ukufakwa kwe-EIFS kwekhwalithi ephezulu okuhlangabezana nezindinganiso zokusebenza futhi kwandise ubuhle besakhiwo kanye nokuphila isikhathi eside.
Isikhathi sokuthunyelwe: Feb-23-2024