Rau ntau pua xyoo, masonry thiab plaster mortars tau siv los tsim cov qauv zoo nkauj thiab ruaj khov. Cov neeg muaj tshoob no tau tsim los ntawm kev sib xyaw ntawm xis mas, xuab zeb, dej thiab lwm yam ntxiv. HydroxyPropyyl methylcellulose (HPMC) yog ib qho ntxiv ntxiv.
HPMC, tseem hu ua Hypromellose, yog hloov kho cellulose ether tau los ntawm ntoo pulp thiab cov paj rwb fibers. Nws yog ib qho kev muaj ntau yam siv nyob rau ntau yam kev lag luam, suav nrog kev tsim kho, chaw muag tshuaj, khoom noj thiab cov khoom lag luam saib xyuas tus kheej. Hauv kev ua haujlwm, HPMC yog siv los ua cov tuab dua, binder, dej tuav tus neeg sawv cev thiab rheology cov kev hloov kho hauv cov tshuaj khib nyiab.
Lub luag haujlwm ntawm HPMC hauv Masonry plastering CUG
1. Kev tswj tau xwm yeem
Lub sib tov ntawm cug yog qhov tseem ceeb rau kev siv tau zoo thiab kev sib tham. HPMC yog siv los tswj cov yuav tsum muaj kev sib xws ntawm masonry thiab plaster mortars. Nws ua raws li cov tuab dua, tiv thaiv kev tshuaj khib los ntawm kev ua kua thiab tuab, tso cai rau cov ntawv thov du.
2. Dej ceev ceev
Dej yog qhov tseem ceeb heev nyob rau hauv cov txheej txheem hydration ntawm cov cement, ib qho tseem ceeb ntawm Masonry thiab plastering mortars. Txawm li cas los xij, cov dej ntau dhau yuav ua rau shrinkage thiab tawg. HPMC pab khaws cov dej noo hauv lub tshuaj khib, tso cai kom dej kom zoo ntawm cov xis mas txo cov dej ntws los ntawm evaporation. Qhov no ua rau muaj kev txhim kho ua haujlwm, zoo dua zoo nkauj thiab nce lub zog.
3. Teem lub sijhawm
Lub sij hawm teeb tsa ntawm cug cug cuam tshuam rau lub durability thiab adhesion ntawm tus qauv kawg. HPMC tuaj yeem siv los tswj lub sijhawm teeb tsa lub sijhawm Masonry thiab cov plastering mortars. Nws ua raws li tus retarder, qeeb qeeb ntawm cov txheej txheem hydration ntawm cov cement. Qhov no ua rau lub sijhawm ua haujlwm ntev dua thiab txhim kho kev ua tau zoo.
4. Adhesion lub zog
Qhov sib khi ua lub zog ntawm cov neeg muaj ntsha ua ke yog qhov tseem ceeb rau lub durability ntawm masonry thiab plaster qauv. HPMC txhim kho lub zog ntawm cug thiab substrate los ntawm muab cov adhesion zoo dua thiab txhim kho cov haujlwm ua haujlwm zoo dua. Qhov no ua rau muaj zog thiab ntau cov qauv ruaj khov.
Qhov Zoo ntawm HPMC hauv Masonry thiab Plastering Mortars
1. Txhim Kho Kev Ua Haujlwm
HPMC pab txhim kho cov haujlwm ntawm Masonry thiab Plastering Mortars. Lub thickening thiab dej-khaws cov khoom ntawm HPMC tau ua ntawv thov ntawm coll cug smooth thiab yooj yim dua. Qhov no nce tag nrho cov txiaj ntsig tag nrho thiab nrawm ntawm kev tsim kho.
2. Txo cov shrinkage thiab tawg
Shrinkage thiab cov cracking yog teeb meem ib txwm muaj nrog cov masonry thiab plaster mortars. Cov khoom siv dej-khaws cia ntawm HPMC txo qis evaporation thiab tiv thaiv shrinkage thiab tawg. Qhov no ua rau muaj cov qauv ruaj khov thiab ntev.
3. Txhim kho kom ruaj khov
Qhov sib ntxiv ntawm HPMC mus rau Masonry thiab Plastering Mortars txhim kho lub zog ntawm tus qauv kawg. HPMC tau txhim kho Bib zog, cov txheej txheem ua kom tiav thiab dej ua kom muaj zog, ua kom muaj zog dua qub.
4. Cov Nqi Siab Zoo
HPMC yog tus nqi ntxiv uas muaj txiaj ntsig uas muaj cov txiaj ntsig ntau hauv Masonry thiab Plastering Collfulity. Nws cov khoom txo qis kev pheej hmoo ntawm cov teeb meem xws li shrinkage thiab tawg, yog li txo cov nqi kho mob thoob plaws lub neej ntawm cov qauv ntawm tus qauv.
Hauv kev xaus
HPMC ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo thiab kev ua tau zoo ntawm Masonry thiab plastering mortars. Nws muaj kev tswj hwm xwm yeem, kev tswj hwm dej, kev tswj lub sijhawm thiab daim ntawv txhawb nqa lub zog muaj txiaj ntsig zoo rau kev tsim kho. Kev siv HPMC cov txiaj ntsig hauv kev txhim kho cov haujlwm ua haujlwm, txo cov shrinkage thiab tawg, txhim kho durability thiab nqi ua tau zoo. Lub koom haum ntawm HPMC ua Masonry thiab Render Mortars yog ib kauj ruam zoo rau ntau dua kev ua haujlwm kev tsim kho.
Lub Sijhawm Post: Kaum-08-2023