Ib qho ntawm qhov sib txawv loj tshaj plaws ntawm cov cap muag qhuav thiab cov tshuaj colleg yog qhov cap cap muag qhuav yog hloov kho nrog cov tshuaj sib ntxiv me me. Ntxiv ib hom ntxiv rau cov tshuaj cug qhuav yog hu ua kev hloov kho theem pib, ntxiv ob lossis ntau dua kev hloov kho dua tshiab. Qhov zoo ntawm cov tshuaj ua kom qhuav ntawm lub tshuaj ua kom qhuav nyob ntawm qhov tseeb xaiv ntawm cov khoom siv thiab kev sib koom tes thiab sib txuam ntawm ntau yam. Cov tshuaj ntxiv cov tshuaj cais tau kim thiab muaj kev cuam tshuam zoo rau cov khoom ntawm cov cug cug qhuav. Yog li ntawd, nyob rau hauv kev xaiv ntawm additives, tus nqi ntawm cov ntxiv yuav tsum yog ua ntej. Cov hauv qab no yog cov lus qhia luv luv rau kev xaiv cov tshuaj sib txawv cellulose ether.
Cellulose ether tseem hu ua rheological hloov kho ib hom rheologting yam ntawm cov tshiab cug, yuav luag siv txhua yam tshuaj khib. Cov nram qab no cov khoom yuav tsum tau coj mus rau hauv tus account thaum xaiv ntau yam thiab tus nqi ntxiv:
(1) dej khaws cia ntawm ntau qhov kub;
(2) tuab, viscosity;
(3) Kev sib raug zoo ntawm kev sib thooj thiab ntsuas kub thiab qhov cuam tshuam ntawm kev sib xws nyob rau hauv cov electrolyte;
(4) Daim ntawv thiab qib etherification;
(5) Txoj kev txhim kho ntawm lub thixotropy thiab txoj kev muaj peev xwm ntawm cug (uas yog qhov tsim nyog rau cug coated ntawm ntsug nto);
(6) kev sib cais, tus mob thiab cov kev ua tiav tiav.
Ntxiv nrog rau kev ntxiv cellulose ether hauv cov tshuaj khib qhuav (xws li cov tshuaj me me ether), tuaj yeem ntxiv cov roj hmab polyvinyl sterster, uas yog, kev hloov kho ob zaug. Lub inorganic binder nyob rau hauv collch (Mement, Gypsum) tuaj yeem lav lub zog compressive compressive compressive compressive, tab sis muaj me ntsis cov nyhuv ntawm lub zog tensile thiab khoov rau lub zog. Vinyl Polyvinyl Ester Tsim Elastic Zaj Duab Xis Hauv Caas Pobzeb Hauv Cwj Pwm Siv Tau Zoo Deformation Load, txhim kho cov hnav tsis kam. Nws tau raug pov thawj los ntawm kev ntxiv cov tshuaj cellulose ntau, plastering colling phaj, aerated qhob phaj, aerated qhob thaiv masonry coabing cug ntawm nchuav pem teb tuaj yeem npaj tau. Sib tov ob tsis tuaj yeem txhim kho cov tshuaj cug zoo, tab sis kuj txhim kho kev ua haujlwm zoo.
Hauv kev siv tswv yim, txhawm rau txhim kho kev ua tau zoo, nws yog qhov tsim nyog los siv ntau tus yawg. Qhov kev sib tw zoo tshaj plaws ntawm kev sib ntxiv, cov tshuaj sib piv tau muaj qee yam ntawm cov tshuaj khib, muaj qee tus nyob ib leeg yog qhov tsawg, qee zaum txawm tias muaj qhov tsis zoo, xws li Raws li ib leeg doped fiber ntau, nyob rau hauv nce cov nplaum ntawm cov kab tsuag, txawm li cas los xij, cov khoom noj ntawm cov slurry, uas ua rau txo qis ntawm compressive lub zog. Thaum huab cua Entraining yog ntxiv, Cug Delamination Degree thiab cov dej tau tuaj yeem txo tau zoo heev, tab sis lub compressive lub zog ntawm cug yuav txo vim muaj npuas ntau. Txhim kho Masonry Collational rau qhov ua tau zoo siab tshaj plaws, thaum muaj kev sib xyaw ua ke thiab cov kev sib tw ntawm cov khoom siv kev paub meej, tib lub sijhawm, tsis txhob siv txiv qaub putty, txuag cov cement , Kev tiv thaiv ib puag ncig, thiab lwm yam.
Lub Sijhawm Post: Apr-29-2022