Ib qho ntawm qhov sib txawv loj tshaj plaws ntawm cov tshuaj khib nyiab thiab cov tshuaj khib nyiab yog tias cov tshuaj khib nyiab tau hloov kho nrog cov tshuaj ntxiv me me.Ntxiv ib hom tshuaj ntxiv rau cov khib nyiab qhuav yog hu ua kev hloov kho thawj zaug, ntxiv ob lossis ntau qhov ntxiv yog qhov hloov kho thib ob.Qhov zoo ntawm cov mortar qhuav yog nyob ntawm qhov raug xaiv ntawm cov khoom thiab kev sib koom tes thiab kev sib txuam ntawm ntau yam khoom.Cov tshuaj additives yog kim thiab muaj txiaj ntsig zoo rau cov khoom ntawm cov tshuaj khib nyiab qhuav.Yog li ntawd, nyob rau hauv kev xaiv ntawm additives, tus nqi ntawm additives yuav tsum nyob rau hauv thawj qhov chaw.Hauv qab no yog cov lus qhia luv luv rau kev xaiv cov tshuaj additives cellulose ether.
Cellulose ether tseem hu ua rheological modifier ib hom tshuaj siv los kho cov khoom rheological ntawm cov tshuaj khib nyiab tshiab, yuav luag siv rau txhua hom tshuaj khib.Cov khoom nram qab no yuav tsum raug coj mus rau hauv tus account thaum xaiv ntau yam thiab cov nyiaj ntxiv:
(1) Kev tuav dej ntawm qhov kub sib txawv;
(2) thickening, viscosity;
(3) Kev sib raug zoo ntawm qhov sib xws thiab qhov kub thiab txias, thiab kev cuam tshuam ntawm kev sib xws ntawm cov electrolyte;
(4) daim ntawv thiab degree ntawm etherification;
(5) kev txhim kho ntawm thixotropy thiab positioning peev xwm ntawm mortar (uas yog tsim nyog rau mortar coated rau ntsug nto);
(6) Dissolution tus nqi, mob thiab dissolution tiav.
Ntxiv nrog rau kev ntxiv cellulose ether hauv cov tshuaj khib nyiab qhuav (xws li methyl cellulose ether), tuaj yeem ntxiv vinyl polyvinyl acid ester, uas yog, kev hloov kho theem nrab.Inorganic binder nyob rau hauv mortar (cement, gypsum) tuaj yeem lav qhov siab compressive zog, tab sis tsis tshua muaj zog tensile zog thiab khoov lub zog.Vinyl polyvinyl ester tsim elastic zaj duab xis nyob rau hauv cement pob zeb qhov, ua mortar yuav dais siab deformation load, txhim kho hnav tsis kam.Nws tau raug pov thawj los ntawm kev xyaum hais tias los ntawm kev ntxiv ntau npaum li cas ntawm methyl cellulose ether thiab vinyl polyvinyl ester rau hauv mortar qhuav, nyias txheej txheej phaj bonding mortar, plastering mortar, hniav plastering mortar, aerated qhob thaiv masonry mortar thiab self-leveling mortar ntawm pouring pem teb. tuaj yeem npaj tau.Kev sib xyaw ob tuaj yeem tsis tsuas yog txhim kho qhov zoo ntawm mortar, tab sis kuj tseem txhim kho kev tsim kho kom zoo.
Hauv kev siv tswv yim, txhawm rau txhawm rau txhim kho kev ua tau zoo, nws yog qhov yuav tsum tau siv ntau yam khoom sib xyaw.Qhov kev sib tw zoo tshaj plaws ntawm cov khoom siv ntxiv, qhov ntau npaum li cas, kev faib ua feem, tuaj yeem los ntawm qhov sib txawv muaj qee yam cuam tshuam los txhim kho kev ua haujlwm ntawm mortar, tab sis nws cov kev hloov pauv ntawm cov tshuaj khib thaum siv ib leeg yog txwv, qee zaum txawm tias muaj qhov tsis zoo, xws li Raws li ib leeg doped fiber ntau, ua rau kom cov nplaum ntawm mortar, txo cov degree ntawm stratification nyob rau tib lub sij hawm, Txawm li cas los, cov dej noj ntawm mortar yog heev nce thiab khaws cia nyob rau hauv lub slurry, uas ua rau kom txo tau ntawm compressive zog.Thaum tus neeg saib xyuas huab cua tau ntxiv lawm, cov ntawv pov thawj delamination thiab dej haus tuaj yeem txo qis, tab sis lub zog compressive ntawm mortar yuav txo qis vim muaj npuas ntau.Txhim kho masonry mortar rau siab tshaj plaws kev ua tau zoo, thaum tsis txhob muaj kev puas tsuaj rau lwm yam khoom, lub zog ntawm masonry mortar sib xws, degree ntawm stratification thiab ua tau raws li cov kev cai engineering thiab cov kev cai ntawm kev specification, tib lub sij hawm, tsis txhob siv txiv qaub putty, txuag cement. , kev tiv thaiv ib puag ncig, thiab lwm yam, los ntawm kev txo cov dej, viscosity, dej thickening thiab air-entraining plasticizing foundations, Nws yog ib qho tsim nyog yuav tsum tau ua kom tiav kev ntsuas los tsim thiab siv cov khoom sib xyaw ua ke.
Lub sij hawm xa tuaj: Plaub Hlis-29-2022