I-HPMC (i-hydroxypropyl methylcellulose) yinto ebalulekileyo yokongeza kwisakhiwo kwaye isetyenziswa ngokubanzi kwi-self-leveling mortar. I-self-leveling mortar yimathiriyeli ene-fluid ephezulu kunye nokukwazi ukuzilinganisa, ehlala isetyenziselwa ukwakhiwa komgangatho ukwenza indawo egudileyo kunye nethe tyaba. Kule sicelo, indima ye-HPMC ibonakaliswe ngokukodwa ekuphuculeni umbane, ukugcinwa kwamanzi, ukunamathela kunye nokusebenza kokwakhiwa kodaka.
1. Iimpawu kunye nendlela yokusebenza ye-HPMC
I-HPMC yi-ether ye-cellulose engeyo-ionic kunye namaqela e-hydroxyl kunye ne-methoxy kwisakhiwo sayo se-molecular, eyenziwa ngokutshintshela ezinye ii-athom ze-hydrogen kwiimolekyuli zeselulosi. Iimpawu zayo eziphambili zibandakanya ukunyibilika kakuhle kwamanzi, ukuqina, ukugcinwa kwamanzi, ukuthambisa kunye nekhono elithile lokudibanisa, okwenza ukuba kusetyenziswe ngokubanzi kwizinto zokwakha.
Kudaka lokuzilinganisa, ezona ziphumo ziphambili ze-HPMC ziquka:
Isiphumo esityebileyo: I-HPMC inyusa i-viscosity ye-self-leveling mortar ngokusebenzisana neemolekyuli zamanzi ukwenza isisombululo se-colloidal. Oku kunceda ukuthintela ukuhlukana kodaka ngexesha lokwakhiwa kunye nokuqinisekisa ukufana kwezinto.
Ukugcinwa kwamanzi: I-HPMC inokusebenza okugqwesileyo kokugcinwa kwamanzi, okunokunciphisa ngokufanelekileyo ilahleko yamanzi ngexesha lenkqubo yokuqina yodaka kunye nokwandisa ixesha lokusebenza lodaka. Oku kubaluleke ngakumbi kudaka oluzilinganisa ngokwalo, kuba ukulahleka kwamanzi okukhawulezayo kakhulu kunokubangela ukuqhekeka komphezulu okanye ukuzinziswa ngokungalingani kodaka.
Ulawulo lokuqukuqela: I-HPMC inokugcina ubumanzi obulungileyo kunye nokukwazi ukuzilinganisa ngokulawula ngokufanelekileyo i-rheology yodaka. Olu lawulo lunokuthintela udaka ekubeni lube nolwelo oluphezulu okanye oluphantsi kakhulu ngexesha lokwakha, luqinisekise inkqubela phambili egudileyo yenkqubo yokwakha.
Ukusebenza okuphuculweyo kwebhondi: I-HPMC inokunyusa amandla okudibanisa phakathi kodaka lokuzilinganisa kunye nomgangatho wesiseko, iphucule ukusebenza kwayo kokubambelela, kwaye igweme ukugoba, ukuqhekeka kunye nezinye iingxaki emva kokwakhiwa.
2. Ukusetyenziswa okuthe ngqo kwe-HPMC kwi-self-leveling mortar
2.1 Ukuphucula ukusebenza kolwakhiwo
Udaka oluzilinganisa ngokwalo luhlala lufuna ixesha elide lokusebenza ngexesha lokwakha ukuqinisekisa ukuhamba okwaneleyo kunye nexesha lokulinganisa. Ukugcinwa kwamanzi kwe-HPMC kunokwandisa ixesha lokuqala lokumisela udaka, ngaloo ndlela kuphuculwe ukulungelwa kolwakhiwo. Ngokukodwa kwisakhiwo somgangatho omkhulu, abasebenzi bokwakha banokuba nexesha elininzi lokulungelelanisa kunye nenqanaba.
2.2 Ukuphucula ukusebenza kodaka
Umphumo wokuqina we-HPMC awunakunqanda kuphela ukuhlukana kodaka, kodwa uqinisekisa ukuhanjiswa okufanayo kwe-aggregate kunye ne-cement components kwi-mortar, ngaloo ndlela kuphuculwe ukusebenza ngokubanzi kodaka. Ukongeza, i-HPMC inokunciphisa ukuveliswa kwamaqamza kumphezulu wodaka oluzilinganisayo kwaye iphucule ukugqitywa komphezulu wodaka.
2.3 Phucula ukunganyangeki kwee-crack
Ngexesha lokuqina kodaka lokuzilinganisa, ukuphuma kwamanzi ngokukhawuleza kunokubangela ukuba umthamo wawo ucuthe, ngaloo ndlela ubangele iintanda. I-HPMC inokucothisa ngokufanelekileyo isantya sokumisa sodaka kwaye inciphise amathuba okuqhekeka kweentanda ngokugcina ukufuma. Kwangaxeshanye, ukuguquguquka kwayo kunye nokubambelela kukwanceda ekuphuculeni ukuxhathisa kokuqhekeka kodaka.
3. Isiphumo somthamo we-HPMC ekusebenzeni kodaka
Kwi-self-leveling mortar, isixa se-HPMC esongeziweyo kufuneka silawulwe ngokungqongqo. Ngokuqhelekileyo, isixa se-HPMC esongeziweyo siphakathi kwe-0.1% kunye ne-0.5%. Isixa esifanelekileyo se-HPMC sinokuphucula ngokubonakalayo ulwelo kunye nokugcinwa kwamanzi kodaka, kodwa ukuba idosi iphezulu kakhulu, inokubangela ezi ngxaki zilandelayo:
Ulwelo olusezantsi kakhulu: I-HPMC eninzi kakhulu iya kunciphisa ukumanzi kodaka, ichaphazele ukusebenza kolwakhiwo, kwaye ibangele ukungakwazi ukuzilinganisa.
Ixesha lokumisela elongeziweyo: I-HPMC egqithisileyo iya kwandisa ixesha lokumisela udaka kwaye ichaphazele inkqubela phambili yokwakha elandelayo.
Ke ngoko, kwizicelo ezisebenzayo, kuyafuneka uhlengahlengiso olufanelekileyo lwedosi ye-HPMC ngokwefomula yodaka lokuzilinganisa, ubushushu be-ambient kunye nezinye izinto ukuze kuqinisekiswe ukusebenza kakuhle kolwakhiwo.
4. Iimpembelelo zeentlobo ezahlukeneyo ze-HPMC ekusebenzeni kodaka
I-HPMC ineenkcazo ezahlukeneyo. Iindidi ezahlukeneyo ze-HPMC zinokuba neziphumo ezahlukeneyo ekusebenzeni kodaka lokuzilinganisa ngenxa yobunzima bazo ezahlukeneyo zeemolekyuli kunye nezidanga zokutshintsha. Ngokubanzi, i-HPMC eneqondo eliphezulu lokutshintsha kunye nobunzima obuphezulu bemolekyuli inokuqina okunamandla kunye neziphumo zokugcina amanzi, kodwa izinga lokuchithwa kwayo liyacotha. I-HPMC eneqondo eliphantsi lokutshintshwa kunye nobunzima obuphantsi bemolekyuli bunyibilika ngokukhawuleza kwaye ifanelekile kwizihlandlo ezifuna ukutshatyalaliswa ngokukhawuleza kunye nokudibanisa kwexesha elifutshane. Ngoko ke, xa ukhetha i-HPMC, kuyimfuneko ukukhetha iindidi ezifanelekileyo ngokweemfuno ezithile zokwakha.
5. Impembelelo yeemeko zokusingqongileyo ekusebenzeni kwe-HPMC
Ugcino lwamanzi kunye nesiphumo sokuqina se-HPMC siya kuchatshazelwa yimeko-bume yokwakha. Umzekelo, kwindawo yobushushu obuphezulu okanye ubume obuphantsi bokufuma, amanzi aphuphuma ngokukhawuleza, kwaye umphumo wokugcinwa kwamanzi we-HPMC ubaluleke kakhulu; kwindawo efumileyo, isixa se-HPMC kufuneka sincitshiswe ngokufanelekileyo ukunqanda ukusetwa kodaka ngokucotha kakhulu. Ngoko ke, kwinkqubo yokwakhiwa kwangempela, inani kunye nohlobo lwe-HPMC kufuneka luhlengahlengiswe ngokweemeko zokusingqongileyo ukuze kuqinisekiswe ukuzinza kwe-self-leveling mortar.
Njengesongezo esibalulekileyo kudaka lokuzilinganisa, i-HPMC iphucula kakhulu ukusebenza kolwakhiwo kunye nesiphumo sokugqibela sodaka ngokujiya kwayo, ukugcinwa kwamanzi, ukulungiswa kolwelo kunye nokwandiswa kokunamathela. Nangona kunjalo, kwizicelo ezizizo, izinto ezinje ngexabiso, ukwahlukana kunye nokusingqongileyo kolwakhiwo lwe-HPMC kufuneka kuqwalaselwe ngokubanzi ukufumana esona siphumo sokwakha singcono. Ngokuqhubela phambili okuqhubekayo kobuchwepheshe, ukusetyenziswa kwe-HPMC kudaka oluzilinganisa ngokwalo luya kuba lubanzi kwaye luqole.
Ixesha lokuposa: Sep-24-2024