Muaj ntau yam zoo rau kev siv hmoov HPMC hauv cov khoom siv hauv tsev no. Ua ntej, nws pab kom cov cement mortar khaws dej ntau ntxiv, yog li tiv thaiv kev tawg thiab txhim kho kev ua haujlwm. Qhov thib ob, nws ua rau lub sijhawm qhib ntawm cov khoom siv cement ntev dua, ua rau lawv kav ntev dua ua ntej yuav tsum tau siv lossis teeb tsa. Thaum kawg, nws pab txhawb rau lub zog thiab kev ruaj khov ntawm cov cement mortar los ntawm kev khaws cov dej noo thiab ua kom muaj kev sib txuas zoo dua nrog lwm cov ntaub ntawv xws li cib lossis pobzeb. Tsis tas li ntawd, HPMC pab txo qhov shrinkage thaum txhim kho kev sib koom ua ke thiab kev sib txuas ntawm cov khoom siv cement.
HPMC ua haujlwm li cas?
Lub luag haujlwm ntawm HPMC yog los sib xyaw nrog cov dej molecules thiab ua kom nws cov viscosity nce ntxiv, yog li pab txhim kho qhov fluidity thiab workability ntawm cement mortar. Qhov no txhais tau tias koj yuav tsis tas yuav siv dej ntau thaum npaj koj cov cement mortar, vim HPMC pab khaws cov dej noo ntev dua. Tsis tas li ntawd, vim HPMC khaws cov dej noo ntev dua, nws kuj tseem tuaj yeem pab txo qhov shrinkage hauv qee kis rau qee qhov project.
Lub sijhawm tshaj tawm: Lub Rau Hli-14-2023