qhia
Redispersible polymer hmoov (RDP) yog cov hmoov dawb uas yooj yim soluble hauv dej. Nws yog tsim los ntawm polymer emulsion txau-qhuav los ntawm txheej txheem tshwj xeeb. RDP tau siv dav hauv kev tsim kho vim nws qhov kev ua tau zoo heev, uas tuaj yeem txhim kho kev ua haujlwm ntawm cov ntaub ntawv cementitious. Hauv tsab ntawv no, peb yuav tham txog lub peev xwm ntawm RDP rau kev txhim kho Mortar.
Kev ua haujlwm ntawm RDP
1. Txhim kho cov khoom siv kho tshuab
RDP tuaj yeem txhim kho cov khoom siv ntawm cov khoom siv cementitious, suav nrog lub zog compressive, flexural zog thiab tensile zog. Qhov no yog vim thaum RDP yog tov nrog xis mas thiab tuab tus qauv thiab tuab, uas tuaj yeem txhim kho cov nplaum ntawm cov khoom siv. Yog li ntawd, nws tuaj yeem txhim kho cov khoom siv kho tshuab zoo ntawm cov ntaub ntawv.
2. Ua kom muaj kev sib raug zoo
Lub cohesion ntawm mortar hais yog ze ze rau nws viscosity. Qhov siab dua qhov viscosity, qhov siab dua qhov cohesion ntawm cov khoom. Qhov no yog tshwj xeeb tshaj yog ib qho tseem ceeb nrog masonry mortar vim nws ua kom lub mortar yuav tsis sag los yog ntws thaum lub sij hawm tsim kho. RDP tuaj yeem ua kom cov viscosity ntawm cov mortar, yog li ua kom lub zog cohesive ntawm cov khoom thiab ua kom ntseeg tau qhov zoo ntawm qhov project masonry.
3. Txhim kho dej tuav
Kev tuav dej yog ib qho cuab yeej tseem ceeb ntawm mortar. Nws txhais tau tias yog lub peev xwm ntawm cov khoom siv los khaws cov dej hauv nws cov matrix. Yog tias cov dej tuav tsis txaus, cov tshuaj khib nyiab dries sai heev, uas yuav cuam tshuam rau nws txoj haujlwm thiab txo nws lub zog. RDP tuaj yeem txhim kho cov dej khaws cia ntawm mortar, tiv thaiv nws kom qhuav sai heev, thiab ua kom muaj kev ua haujlwm zoo.
4. Txhim khu kev ua haujlwm
Workability hais txog lub peev xwm ntawm mortar kom yooj yim tsim thiab tsim. Lub workability ntawm mortar yog ze ze rau nws qhov sib xws, viscosity thiab dej tuav kev ua haujlwm. RDP tuaj yeem txhim kho kev ua haujlwm ntawm mortar los ntawm kev ua kom nws qhov sib xws thiab viscosity. Nws tseem tuaj yeem muab cov khoom tuav dej zoo, uas tuaj yeem ua kom muaj kev ua haujlwm ntawm cov tshuaj khib rau lub sijhawm ntev.
5. Txo kev tawg
Kev tawg yog ib qho teeb meem tshwm sim nrog cov khoom siv cement. Nws yog tshwm sim los ntawm ntau yam, xws li shrinkage tus nqi ntawm cov khoom, txoj kev siv, ib puag ncig tej yam kev mob, thiab lwm yam RDP tuaj yeem txo qhov kev pheej hmoo ntawm kev tawg los ntawm kev ua kom cov khoom hloov tau yooj yim thiab ductility. Nws kuj tseem tuaj yeem muab cov adhesion zoo ntawm cov khoom, uas tuaj yeem txo cov kev ntxhov siab hauv cov khoom thiab tiv thaiv kev tawg.
6. Txhim khu kev ua haujlwm ntev
Durability hais txog lub peev xwm ntawm cov khoom siv los tiv thaiv kev puas tsuaj los ntawm cov tshuaj lom neeg, lub cev thiab ib puag ncig. RDP tuaj yeem txhim kho qhov ruaj khov ntawm mortar los ntawm kev txhim kho nws txoj kev tiv thaiv dej, kub hloov pauv thiab huab cua. Nws kuj tseem tuaj yeem muab cov adhesion zoo ntawm cov khoom thiab ua rau cov yeeb yaj kiab tsim cov khoom ntawm mortar, uas tuaj yeem txhim kho nws lub peev xwm los tiv thaiv kev yaig thiab hnav.
nyob rau hauv xaus
Piv txwv li, cov txiaj ntsig ntawm RDP ntawm kev txhim kho mortar yog qhov tseem ceeb. Nws tuaj yeem txhim kho cov khoom siv kho tshuab, ua kom muaj kev sib koom ua ke, txhim kho cov dej tuav, txhim kho kev ua haujlwm, txo qhov tawg, thiab txhim kho durability. Cov khoom no yog qhov tseem ceeb rau kev ua kom zoo ntawm kev ua haujlwm masonry thiab kev ua haujlwm ntev ntawm cov tsev. Yog li, RDP tau siv dav hauv kev tsim kho thiab tau dhau los ua ib qho tseem ceeb ntxiv los txhim kho kev ua haujlwm ntawm mortar.
Post lub sij hawm: Lub Xya hli ntuj-27-2023