Udaka oluzilinganisayo lunokuxhomekeka kubunzima balo ukuze lwenze isiseko esithe tyaba, esigudileyo nesiqinileyo kwisiseko sokubeka okanye ukubopha ezinye izinto. Kwangaxeshanye, lunokwenza ulwakhiwo olukhulu nolusebenzayo. Ke ngoko, ukutyibilika okuphezulu luphawu olubaluleke kakhulu lodaka oluzilinganisayo. Ukongeza, kufuneka lube nokugcinwa kwamanzi kunye namandla okubopha, kungabikho nto yokwahlulwa kwamanzi, kwaye lube neempawu zokuthintela ubushushu kunye nokunyuka kobushushu obuphantsi.
Ngokubanzi, i-self-leveling mortar ifuna ukutyibilika okuhle, kodwa ukutyibilika kwe-samente paste yokwenyani kudla ngokuba yi-10-12cm kuphela; phakathiii-ether ze-cellulose, i-hydroxypropyl methylcellulose (HPMC) sisongezelelo esiphambili se-mortar exutyiweyo esele ilungile, nangona isixa sokongeza siphantsi kakhulu, sinokuphucula kakhulu ukusebenza kwe-mortar, sinokuphucula ukuhambelana, ukusebenza komsebenzi, ukusebenza kwe-bonding kunye nokusebenza kokugcinwa kwamanzi kwe-mortar. Idlala indima ebaluleke kakhulu kwicandelo le-mortar exutyiweyo esele ilungile.
1. Ukuhambahamba
I-Hydroxypropyl methylcellulose (HPMC)inempembelelo ebalulekileyo ekugcinweni kwamanzi, ukuhambelana kunye nokusebenza kolwakhiwo lwe-mortar yokuzilinganisa. Ingakumbi njenge-mortar yokuzilinganisa, ukutyibilika yenye yezona zibonakaliso ziphambili zokuvavanya ukusebenza kwe-mortar yokuzilinganisa. Phantsi kwengcamango yokuqinisekisa ukwakheka okuqhelekileyo kwe-mortar, ukutyibilika kwe-mortar kunokulungiswa ngokutshintsha ubungakanani be-HPMC. Nangona kunjalo, ukuba idosi iphezulu kakhulu, ukutyibilika kwe-mortar kuya kuncitshiswa, ngoko ke idosi ye-HPMC kufuneka ilawulwe ngaphakathi koluhlu olufanelekileyo.
2. Ukugcinwa kwamanzi
Ukugcinwa kwamanzi kwi-mortar sisalathisi esibalulekileyo sokulinganisa ukuzinza kwezinto zangaphakathi ze-mortar esandula ukuxutywa yesamente. Ukuze kuphunyezwe ngokupheleleyo ukusabela kokufuma kwezinto zejeli, ubungakanani obufanelekileyo be-HPMC bunokugcina ukufuma kwi-mortar ixesha elide. Ngokubanzi, izinga lokugcina amanzi kwi-slurry liyanda ngokwanda komxholo we-HPMC. Umsebenzi wokugcina amanzi we-HPMC unokuthintela i-substrate ekufunxeni amanzi amaninzi ngokukhawuleza, kwaye uthintele ukufuma kwamanzi, ukuqinisekisa ukuba indawo ye-slurry inika amanzi aneleyo okufumisa isamente. Ukongeza, i-viscosity ye-hydroxypropyl methylcellulose nayo inempembelelo enkulu ekugcinweni kwamanzi kwi-mortar. Okukhona i-viscosity iphezulu, kokukhona i-viscosity ingcono, kokukhona i-water retention ingcono. Ngokubanzi, iimveliso ezine-viscosity emalunga ne-400mpa.s zisetyenziselwa kakhulu i-mortar yokuzilinganisa, enokuphucula ukusebenza kwe-mortar yokulinganisa kwaye yonyuse ubuncinci be-mortar.
3. Ukubeka ixesha
I-HPMC inefuthe elithile lokulibazisa kwi-mortar. Ngokwanda komthamo, ixesha lokuseta i-mortar liyanda. Isiphumo sokulibazisa se-HPMC kwi-cement paste sixhomekeke kakhulu kwinqanaba lokutshintshwa kwamaqela e-alkyl, kwaye asinabudlelwane buninzi nobunzima bayo beemolekyuli. Okukhona inqanaba lokutshintshwa kwe-alkyl lincinci, kokukhona umxholo we-hydroxyl umkhulu, kwaye kokukhona isiphumo sokulibazisa sicacile. Kwaye okukhona umxholo we-HPMC uphezulu, kokukhona isiphumo somaleko wefilimu eyinkimbinkimbi sicacile ngakumbi ekulibazisekeni kokuqala kwe-hydration yesamente, ngoko ke isiphumo sokulibazisa siyabonakala ngakumbi.
4. Amandla okugoba kunye namandla okucinezela
Ngokwesiqhelo, amandla yenye yezona zikhokelo zibalulekileyo zovavanyo lwempembelelo yokuphilisa kwezinto ezisekwe kwisamente kumxube. Amandla okuxinzelela kunye namandla okugoba kwesamente aya kuncipha ngokonyuka komxholo we-HPMC.
5. Amandla ebhondi
I-HPMC inefuthe elikhulu ekusebenzeni kokubopha kwesamente.I-HPMCYenza ifilimu yepolymer enesiphumo sokutywina phakathi kwenkqubo yesigaba solwelo kunye neenxalenye zesamente zokufunxa amanzi, nto leyo ekhuthaza amanzi amaninzi kwifilimu yepolymer ngaphandle kweenxalenye zesamente, nto leyo enceda ekufunxeni ngokupheleleyo kwesamente, ngaloo ndlela iphucula umgangatho we-slurry. Amandla ebhondi aqinileyo. Kwangaxeshanye, ukongeza ubungakanani obufanelekileyo be-HPMC kuphucula i-plasticity kunye nokuguquguquka kwe-mortar, kunciphisa ukuqina kwendawo yokutshintsha phakathi kwe-mortar kunye ne-substrate interface, kwaye kunciphisa amandla okutyibilika phakathi kwee-interfaces. Ukuya kwinqanaba elithile, isiphumo sokudibanisa phakathi kwe-mortar kunye ne-substrate siyaphucuka. Ukongeza, ngenxa yokubakho kwe-HPMC kwi-samente paste, indawo ekhethekileyo yokutshintsha kwe-interface kunye nomaleko wokudibanisa kwenziwa phakathi kweenxalenye ze-mortar kunye nemveliso yokufunxa amanzi. Le maleko yokudibanisa yenza indawo yokutshintsha ye-interface ibe bhetyebhetye ngakumbi kwaye ingaqini kangako. Ke ngoko, i-Mortar inamandla okudibanisa aqinileyo.
Ixesha leposi: Epreli-25-2024