Izinto zangaphandle zokugquma i-Insulation kunye ne-Finishing Systems (EIFS) zidlala indima ebalulekileyo ekuboneleleni ngokugquma, ukuthintela imozulu kunye nobuhle kwizakhiwo. I-Hydroxypropyl methylcellulose (HPMC) sisongezo esisetyenziswa ngokuqhelekileyo kwii-EIFS zodaka ngenxa yokuguquguquka kwayo, ukugcinwa kwamanzi kunye nokukwazi ukuphucula ukusebenza.
1. Intshayelelo kudaka lwe-EIFS:
Udaka lwe-EIFS yimathiriyeli edityanisiweyo esetyenziselwa ukugquma nokugqiba iinkqubo zodonga lwangaphandle.
Ngokuqhelekileyo iquka isibophelelo sesamente, i-aggregates, iifayibha, izongezo kunye namanzi.
Udaka lwe-EIFS lunokusetyenziswa njenge-primer yokudibanisa iipaneli zokugquma kunye nanjengengubo engaphezulu yokuphucula ubuhle kunye nokumelana nemozulu.
2.Hydroxypropylmethylcellulose (HPMC):
I-HPMC yi-ether yeselulosi ephuma kwi-cellulose ye-polymer yendalo.
Isetyenziswa ngokubanzi kwizixhobo zokwakha ukugcina amanzi, ukutyeba kunye neempawu zokuphucula ukusebenza.
Kwimibhobho ye-EIFS, i-HPMC isebenza njenge-rheology modifier, iphucula ukunamathela, ukudibanisa kunye nokumelana ne-sag.
3. Izithako zefomula:
a. Isibophelelo esisekwe kwisamente:
I-Portland Cement: Inika amandla kunye nokubambelela.
Isamente edityanisiweyo (umzekelo, isamente yelimestone yasePortland): Yandisa ukuqina kwaye icuthe indawo yekhabhoni.
b. Udibaniso:
Isanti: Umthamo kunye nobume be-aggregate ecolekileyo.
I-aggregates ekhaphukhaphu (umz. i-perlite eyandisiweyo): Ukuphucula iimpawu zokugquma kwe-thermal.
C. ifayibha:
I-fiberglass enganyangekiyo kwi-alkali: Yongeza amandla okuqina kunye nokumelana nokuqhekeka.
d. Izongezo:
HPMC: ukugcinwa kwamanzi, ukusebenza, kunye nokuxhathisa i-sag.
I-arhente yoqeqesho lomoya: Phucula ukuxhathisa ukunyibilika komkhenkce.
IRetarder: Ilawula ukuseta ixesha kwimozulu eshushu.
IiModyuli zePolymer: Ukuphucula ukuguquguquka kunye nokuqina.
e. Amanzi: Abalulekile kumanzi kunye nokusebenza.
4. Iimpawu ze-HPMC kudaka lwe-EIFS:
a. Ukugcinwa kwamanzi: I-HPMC ifunxa kwaye igcine amanzi, iqinisekisa ukuhanjiswa kwexesha elide kunye nokuphucula ukusebenza.
b. Ukusetyenzwa: I-HPMC inika ukuguda kodaka kunye nokungaguquguquki, isenza kube lula ukwakha.
C. I-Anti-sag: I-HPMC inceda ukuthintela udaka ukusuka ekujikeni okanye ukudilika kwiindawo ezithe nkqo, ukuqinisekisa ubukhulu obufanayo.
d. Ukubambelela: I-HPMC iphucula ukubambelela phakathi kodaka kunye ne-substrate, ukukhuthaza ukubambelela kwexesha elide kunye nokuqina.
e. Ukuchasana nokuqhekeka: I-HPMC iphucula ukuguquguquka kunye namandla okudibanisa udaka kunye nokunciphisa umngcipheko wokuqhekeka.
5. Inkqubo yokuxuba:
a. Indlela yokumanzisa kwangaphambili:
manzisa kwangaphambili i-HPMC kwisingxobo esicocekileyo esimalunga nama-70-80% amanzi axutyiweyo ewonke.
Hlanganisa ngokucokisekileyo izithako ezomileyo (isamente, i-aggregate, fibers) kwi-mixer.
Ngokuthe ngcembe yongeza isisombululo se-HPMC esifakwe ngaphambili ngelixa uvuselela de kufike ukuhambelana okufunekayo.
Lungisa isiqulatho samanzi njengoko kufuneka ukuphumeza umsebenzi ofunekayo.
b. Indlela yokuxuba okomileyo:
Dry mix HPMC kunye izithako ezomileyo (samente, aggregates, imicu) in a mixer.
Galela kancinane amanzi ngeli xesha uvuselelayo de kufike ukufana okufunekayo.
Xuba ngokucokisekileyo ukuqinisekisa ngokulinganayo ukuhanjiswa HPMC kunye nezinye izithako.
C. Uvavanyo lokuhambelana: Uvavanyo lokuhambelana kunye ne-HPMC kunye nezinye izongezo zokuqinisekisa ukusebenzisana okufanelekileyo kunye nokusebenza.
6. Itekhnoloji yosetyenziso:
a. Ukulungiswa kwe-substrate: Qinisekisa ukuba i-substrate icocekile, yomile kwaye ayinazingcolisi.
b. Isicelo sokuqala:
Faka i-EIFS Mortar Primer kwi-substrate usebenzisa itrowel okanye izixhobo zokutshiza.
Qinisekisa ukuba ubukhulu bulungelelene kwaye nokhuselo lulungile, ngakumbi imiphetho kunye neekona.
Lungiselela ibhodi yokugquma kudaka olumanzi kwaye uvumele ixesha elaneleyo lokunyanga.
C. Topcoat Isicelo:
Tyala itopcoat yodaka ye-EIFS phezu kweprimer enyangisiweyo usebenzisa itrowel okanye isixhobo sokutshiza.
Ubume okanye umphezulu wokugqiba njengoko ufunwa, ukukhathalela ukufezekisa ukufana kunye nobuhle.
Ukunyanga i-topcoat ngokweengcebiso zomenzi wokukhusela kwiimeko zemozulu ezinzima.
7. Ulawulo lomgangatho kunye novavanyo:
a. Ukuhambelana: Ukubeka iliso ukuhambelana kodaka kuyo yonke inkqubo yokuxuba kunye nesicelo ukuqinisekisa ukufana.
b. Ukubambelela: Uvavanyo lokubambelela lwenziwa ukuvavanya amandla ebhondi phakathi kodaka kunye ne-substrate.
C. Ukusebenza: Vavanya ukusebenza ngovavanyo lokuthotywa kunye nokuqwalaselwa ngexesha lokwakha.
d. Ukuqina: Ukuqhuba uvavanyo lokuqina, kubandakanya imijikelo yokunyibilika komkhenkce kunye nokuvalwa kwamanzi, ukuvavanya ukusebenza kwexesha elide.
Ukusebenzisa i-HPMC ukuqulunqa ii-EIFS zodaka zibonelela ngeenzuzo ezininzi malunga nokusebenza, ukunamathela, ukuxhathisa i-sag kunye nokuqina. Ngokuqonda iipropathi ze-HPMC kunye nokulandela ukuxuba okufanelekileyo kunye nobuchule bokusebenzisa, iikontraka zinokufikelela kwizinga eliphezulu lofakelo lwe-EIFS oluhlangabezana nemigangatho yokusebenza kunye nokwandisa i-aesthetics yokwakha kunye nokuphila ixesha elide.
Ixesha lokuposa: Feb-23-2024