Self-leveling mortar tuaj yeem tso siab rau nws tus kheej qhov hnyav los tsim lub hauv paus tiaj, du thiab ruaj khov ntawm lub substrate rau nteg lossis khi lwm yam ntaub ntawv.Nws tseem tuaj yeem ua tiav kev tsim kho kom zoo dua ib cheeb tsam loj.High fluidity yog ib qho tseem ceeb heev feature ntawm tus kheej-leveling mortar.;Tsis tas li ntawd, nws tseem yuav tsum muaj qee yam dej tuav thiab kev sib txuas ntawm lub zog, tsis tsim cov dej sib cais, thiab muaj cov yam ntxwv ntawm cov rwb thaiv tsev kub thiab qhov kub thiab txias.
Feem ntau, tus kheej-leveling mortar yuav tsum muaj fluidity zoo.Cellulose etheryog ib tug loj additive rau npaj-mixed mortar.Txawm hais tias qhov sib ntxiv yog tsawg heev, nws tuaj yeem txhim kho qhov kev ua tau zoo ntawm cov mortar.Nws tuaj yeem txhim kho qhov sib xws, kev ua haujlwm zoo, thiab Adhesion zog thiab cov khoom tuav dej, thiab lwm yam. Nws ua lub luag haujlwm tseem ceeb hauv thaj chaw ntawm cov khoom sib xyaw ua ke.
Fluidity
Cellulose ethermuaj qhov cuam tshuam tseem ceeb ntawm kev tuav dej, sib xws, thiab kev tsim kho ntawm tus kheej-leveling mortar.Tshwj xeeb tshaj yog rau tus kheej-leveling mortar, fluidity yog ib qho ntawm cov cim tseem ceeb rau kev ntsuas tus kheej-leveling kev ua tau zoo.Nyob rau ntawm qhov chaw ntawm kev ua kom ntseeg tau qhov muaj pes tsawg leeg ntawm cov tshuaj khib, cov kua dej ntawm cov tshuaj khib tuaj yeem hloov kho los ntawm kev hloov cov cellulose ether.Txawm li cas los xij, ntau npaum li cas yuav txo qhov fluidity ntawm mortar, yog li cov koob tshuaj ntawm cellulose ether yuav tsum tau tswj nyob rau hauv ib tug tsim nyog ntau yam.
Kev tuav dej
Mortar dej tuav yog ib qho qhia tseem ceeb los ntsuas qhov ruaj khov ntawm cov khoom siv hauv cov cement mortar tshiab.Txhawm rau kom ua tiav cov dej ntws tawm ntawm cov khoom siv gel, tus nqi tsim nyog ntawm cellulose ether tuaj yeem tswj cov dej noo hauv mortar rau lub sijhawm ntev.Feem ntau hais lus, cov dej tuav tus nqi ntawm cov slurry nce nrog qhov nce hauv cov ntsiab lus ntawm cellulose ether.Kev tuav dej ntawm cov cellulose ether tuaj yeem tiv thaiv cov substrate los ntawm nqus dej ntau dhau sai thiab cuam tshuam cov dej evaporation, yog li xyuas kom meej tias qhov chaw slurry muab dej txaus rau cov cement hydration.Tsis tas li ntawd, viscosity ntawm cellulose ether kuj muaj txiaj ntsig zoo rau cov dej khaws cia ntawm mortar.Qhov siab dua qhov viscosity, qhov dej tuav tau zoo dua.Cellulose ethers nrog viscosity dav dav ntawm 400 mpa.s feem ntau yog siv rau hauv tus kheej-leveling mortars, uas tuaj yeem txhim kho qhov kev ua tau zoo ntawm cov mortar thiab txhim kho qhov ntom ntawm cov tshuaj khib.
Lub sijhawm coagulation
Cellulose ethermuaj qee yam cuam tshuam rau ntawm mortar.Raws li cov ntsiab lus ntawm cellulose ether nce, lub sij hawm teeb tsa ntawm lub mortar nce.Cov nyhuv retarding ntawm cellulose ether ntawm cov cement slurry tsuas yog nyob ntawm qhov kev hloov pauv ntawm pawg alkyl thiab muaj kev sib raug zoo nrog nws qhov hnyav molecular.Qhov me me ntawm alkyl hloov pauv qib, qhov ntau dua cov ntsiab lus hydroxyl, thiab qhov pom tseeb dua cov nyhuv retarding.Thiab qhov siab dua cov ntsiab lus ntawm cellulose ether, qhov ntau pom tseeb ntawm cov zaj duab xis txheej yog nyob rau hauv retarding thaum ntxov hydration ntawm cement, thiab yog li ntawd, qhov pom tseeb dua cov nyhuv retarding.
Flexural zog thiab compressive zog
Lub zog yog ib qho ntawm cov kev ntsuas tseem ceeb rau kev ua kom muaj zog ntawm cov cement-based cementitious cov ntaub ntawv ntawm qhov sib tov.Raws li cov ntsiab lus ntawm cellulose ether nce, lub zog compressive thiab flexural zog ntawm mortar yuav txo.Nws yuav tsum tau tswj nyob rau hauv ib tug tej yam tsim nyog ntau yam.
Bonding zog
Cellulose ether muaj kev cuam tshuam zoo rau cov khoom sib txuas ntawm cov tshuaj khib nyiab.Cellulose ether tsim ib zaj duab xis polymer nrog cov nyhuv sealing ntawm cov cement hydration hais nyob rau hauv cov kua theem system, uas txhawb dej ntau nyob rau hauv lub polymer zaj duab xis sab nraum cov cement hais, uas yog conducive mus rau lub tiav hydration ntawm cov cement, yog li txhim kho cov Bond zog. tom qab hardening ntawm slurry.Nyob rau tib lub sijhawm, tus nqi tsim nyog ntawm cellulose ether txhim kho cov yas thiab hloov tau yooj yim ntawm cov tshuaj khib, txo qhov rigidity ntawm txoj kev hloov chaw ntawm cov tshuaj khib thiab cov khoom siv hauv paus, thiab txo cov zawv zawg muaj peev xwm ntawm kev sib tshuam.Rau ib qho twg, qhov kev sib txuas ntawm cov tshuaj khib thiab cov khoom siv hauv paus tau txhim kho.Tsis tas li ntawd, vim muaj cov cellulose ether nyob rau hauv cov cement slurry, ib qho kev hloov pauv tshwj xeeb hauv cheeb tsam thiab cov txheej txheem interface yog tsim los ntawm cov khoom khib nyiab thiab cov khoom siv dej.Cov txheej txheem interface no ua rau thaj chaw hloov pauv hloov pauv tau yooj yim dua thiab qis dua rigidity.Yog li ntawd, yog li ntawd lub mortar muaj zog bonding zog.
Post lub sij hawm: Feb-02-2024