Ua kom muaj kev ua tau zoo tshaj plaws ntawm cov mortar thiab grout uas nyias-teem
Cov hmoov polymer uas tawg ua tej daim me me (RDP) yog ib yam khoom siv uas ua tau ntau yam, ua rau cov cementitious tile mortars thiab grouts ua haujlwm tau zoo dua. Los ntawm kev ua haujlwm ua ib qho khoom sib txuas ntxiv, RDP ua rau muaj zog sib txuas rau cov substrates, ua rau muaj kev ywj pheej kom tiv taus kev tawg, txhim kho kev khaws dej kom ntev dua, thiab ua kom zoo dua rheology rau kev siv du.
Cov hmoov polymer uas tawg tau dua yog tsim los ntawm kev tsuag-ziab cov polymer emulsion—feem ntau yog vinyl acetate–ethylene (VAE) lossis acrylic—mus rau hauv cov hmoov uas ntws dawb uas rov qab mus rau cov polymer emulsion ruaj khov thaum kov dej. Hauv cov kab ke ua los ntawm cement, cov yeeb yaj kiab polymer tshiab no sib xyaw nrog cov khoom siv hydration los tsim kom muaj lub network ruaj khov, yoog tau uas txhim kho ntau yam kev ua tau zoo.
Kev Ua Haujlwm RDP hauv Cov Mortars Thin-Set
1. Kev nplaum zoo heev
RDP ua haujlwm ua tus khi thib ob nrog rau cov cement, ua kom lub zog sib txuas rau cov substrates xws li concrete, cement board, thiab gypsum backerboard zoo dua qub - txo cov kev pheej hmoo ntawm kev tawg pobzeb txawm tias nyob hauv qab thermal lossis mechanical stress.
2. Kev Ywj Pheej Zoo Dua & Kev Tiv Thaiv Kev Tawg
Cov zaj duab xis polymer muab qhov elasticity rau lub matrix mortar, ua rau cov txheej nyias nyias tuaj yeem pab txhawb kev txav mus los ntawm substrate thiab thermal expansion yam tsis muaj kev tawg.
3. Txhim Kho Kev Khaws Dej & Lub Sijhawm Qhib
Los ntawm kev txo qhov nrawm ntawm cov dej poob thaum lub sijhawm teeb tsa, RDP-modified mortars tswj tau qhov ua haujlwm ntev dua, tso cai rau cov neeg teeb tsa lub sijhawm ntau dua rau trowelling thiab kho cov vuas.
4. Kev Txhim Kho Rheology & Sag Resistance
RDP ua rau cov mortar muaj zog thixotropic - ua rau cov khoom sib xyaw ua ke zoo, tsis lo rau ntawm phab ntsa thiab qab nthab yam tsis muaj kev sagging.
Kev Ua Haujlwm RDP hauv Grouts
1. Cov Kev Sib Txuas Lus Muaj Zog Dua, Ruaj Khov Dua
Hauv cov cementitious grouts, RDP txhawb nqa kev nplaum rau cov npoo pobzeb thiab cov ntsej muag sib koom ua ke, txo qhov ua tsis tiav ntawm grout thiab txhim kho kev sib koom ua ke tag nrho.
2. Txo Kev Ntsws thiab Kev Nthuav Dav
Lub network polymer txo qhov kev qhuav qhuav, ua rau cov kab grout uas tiv taus tawg uas tswj tau qhov zoo li qub dhau sijhawm.
3. Kev Tiv Thaiv Dej Thiab Cov Xim Zoo Dua
Cov grouts hloov kho RDP qhia tau tias muaj qhov porosity qis dua, muab kev tiv thaiv dej noo zoo dua thiab txo qhov kev cuam tshuam rau cov xim hauv cov chaw ntub xws li da dej thiab pas dej ua ke.
4. Yooj yim rau kev siv thiab kev ntxuav
Kev txhim kho plasticity thiab kev sib xws ua rau RDP-enhanced grouts yooj yim dua rau cov cuab yeej thiab ntxuav, ua kom nrawm dua kev teeb tsa thiab txhim kho qhov zoo tiav.
Xaiv RDP Zoo
- Hom Polymer: Xaiv cov RDPs raws li VAE rau kev sib npaug ntawm kev nplaum thiab kev ywj pheej; acrylic RDPs zoo heev hauv kev ua haujlwm siab lossis kev siv sab nraud.
- Cov Lus Qhia Txog Kev Siv Tshuaj: Feem ntau cov feem pua ntawm kev suav nrog yog li ntawm 4–8 kg rau txhua 100 kg ntawm cov xuab zeb qhuav lossis cov grout, tab sis kev ua kom zoo dua los ntawm kev sim hauv chav kuaj yog qhov pom zoo.
- Kev Zoo & Kev Ua Raws Cai: Xyuas kom tseeb tias tus neeg muag khoom RDP tswj hwm kev faib tawm cov khoom me me thiab ua tau raws li cov qauv kev lag luam (ANSI A118.4/A118.11 rau cov khoom nyias nyias, ANSI A118.6 rau cov grouts).
- Kev Txhawb Nqa: Koom tes nrog cov chaw tsim khoom uas muab kev pab tsim cov tshuaj, cov ntaub ntawv kev ua tau zoo, thiab kev txhawb nqa hauv tsev kom kho koj cov khoom sib xyaw kom zoo.
Kev siv cov RDP zoo rau hauv cov mortars thiab grouts uas nyias nyias yog qhov tseem ceeb rau kev ua tiav kev teeb tsa ruaj khov, yoog tau, thiab tiv taus dej. Los ntawm kev nkag siab txog RDP kev ua haujlwm - los ntawm kev nplaum thiab kev yoog tau mus rau rheology thiab kev khaws cia dej - cov kws tshaj lij hauv kev lag luam tuaj yeem xaiv cov tshuaj polymer zoo tshaj plaws thiab cov koob tshuaj kom ua tau raws li cov lus qhia ntawm qhov project thiab xa cov kev ua tau zoo mus ntev. Rau cov kev daws teeb meem RDP uas tau kho tshwj xeeb thiab cov lus qhia ntxaws ntxaws, sab laj nrog lub chaw tsim khoom RDP uas muaj npe nrov hnub no.