Cov mortars uas nws tus kheej leveling vam khom nws tus kheej qhov hnyav los tsim lub hauv paus tiaj tus, du thiab khov kho rau ntawm lub substrate, tso cai rau lwm cov ntaub ntawv kom raug tso lossis sib txuas, thaum ua tiav cov cheeb tsam loj, ua haujlwm tau zoo. Yog li ntawd, kev ua haujlwm siab yog ib qho tseem ceeb heev ntawm cov mortar self-leveling mortar. Nws kuj tseem yuav tsum muaj qee qib ntawm kev tuav dej thiab kev sib txuas lub zog, tsis muaj percolation thiab sib cais, thiab yuav tsum yog adiabatic thiab qis kub.
Feem ntau cov tshuaj mortar uas nws tus kheej leveling yuav tsum tau fluidity zoo, tab sis qhov tseeb cement slurry ntws feem ntau tsuas yog 10-12cm; cellulose ether yog cov tshuaj mortar sib xyaw ua ke tseem ceeb, txawm hais tias qhov ntau ntxiv yog tsawg heev, nws tuaj yeem txhim kho qhov kev ua tau zoo ntawm cov tshuaj mortar, uas tuaj yeem txhim kho qhov sib xws ntawm cov tshuaj mortar, kev ua haujlwm tau zoo, kev sib txuas thiab kev ua haujlwm khaws dej. Nws muaj lub luag haujlwm tseem ceeb heev hauv kev ua haujlwm ntawm cov tshuaj mortar sib xyaw ua ke.
1 Kev Ua Tau Yooj Yim
Cellulose ether muaj feem cuam tshuam loj heev rau kev khaws dej, kev sib xws thiab kev ua haujlwm ntawm cov mortar. Tshwj xeeb tshaj yog raws li cov mortar uas nws tus kheej leveling, fluidity yog ib qho ntawm cov cim tseem ceeb los ntsuas qhov kev ua tau zoo ntawm nws tus kheej leveling. Qhov fluidity ntawm mortar tuaj yeem hloov kho los ntawm kev hloov pauv qhov ntau ntawm cellulose ether nyob rau hauv lub hauv paus ntawm kev ua kom ntseeg tau tias muaj cov khoom sib xyaw ntawm mortar. Cov ntsiab lus siab dhau yuav txo qhov fluidity ntawm mortar, yog li ntawd, qhov ntau ntawm cellulose ether yuav tsum tau tswj hwm hauv qhov ntau thiab tsawg tsim nyog.
2 Kev khaws dej
Cov tshuaj nplaum uas khaws dej yog ib qho cim qhia tseem ceeb ntawm kev ruaj khov ntawm cov khoom sab hauv ntawm cov cement mortar. Yuav kom ua rau cov khoom gel ua kom cov tshuaj tiv thaiv dej tag nrho, siv cov cellulose ether kom txaus rau lub sijhawm ntev dua los khaws cov dej hauv cov tshuaj nplaum. Feem ntau, thaum cov cellulose ether ntau ntxiv, cov dej khaws cia ntawm cov tshuaj nplaum kuj nce ntxiv. Tsis tas li ntawd, qhov viscosity ntawm cellulose ether muaj feem cuam tshuam loj rau qhov khaws cia dej ntawm cov tshuaj nplaum; qhov viscosity siab dua, qhov khaws cia dej zoo dua.
3 Teem sijhawm
Cellulose ether muaj cov nyhuv thaiv rau ntawm cov mortar. Nrog rau qhov nce ntawm cov cellulose ether cov ntsiab lus, lub sijhawm teeb tsa ntawm cov mortar yuav ntev dua. Thiab nrog cov ntsiab lus siab ntawm cellulose ether, cov nyhuv thaum ntxov ntawm cov cement hydration hysteresis yog qhov pom tseeb dua.
4 Lub zog flexural thiab lub zog compressive
Feem ntau hais lus, lub zog yog ib qho ntawm cov qauv ntsuas tseem ceeb ntawm cov khoom siv cementitious cementitious curing mix. Lub zog compressive thiab lub zog flexural ntawm mortar yuav txo qis thaum cov ntsiab lus ntawm cellulose ether nce.
Lub sijhawm tshaj tawm: Lub Xya Hli-01-2022