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-alkali-resistant fiberglass: Yongeza amandla okuqina kunye nokumelana nokuqhekeka.
d. Izongezo:
HPMC: ukugcinwa kwamanzi, ukusebenza, kunye nokuxhathisa i-sag.
Iarhente 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) kwi 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 kweSubstrate: 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.
Gxumeka 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